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Current report (Form 8-K) · Jun 2, 2026 · Acquisition or asset sale · Other material event · New debt obligation · +2 more
EX-99 · ex96-1.htm
EX-99
ex96-1.htm
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EX-99 · ex96-1.htm EX-99 5 ex96-1.htm EX-96.1 Exhibit 96.1 Hycroft Mine Project S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis Nevada, USA Effective Date: May 14, 2026 Report Date: May 29, 2026 Prepared for: Hycroft Mining Holding Corporation PO Box 3030 Winnemucca, Nevada, United States, 89446 Prepared by: Ausenco Engineering USA South Inc. 595 S Meyer Ave, Tucson, Arizona, United States, 85701 Contributing Authors: Ausenco Engineering USA South Inc. Independent Mining Consultants Inc. WestLand Engineering & Environmental Services, Inc. Date and Signature Page This technical report summary (“TRS”), entitled “Hycroft Mine Project, S-K 1300 Technical Report Summary and Initial Assessment with Economics Analysis, Nevada, USA” is current as of May 14, 2026, and has been prepared by: Consulting Firm Responsible for the following sections Signature Date Ausenco Engineering USA South Inc. 1.1, 1.2, 1.8, 1.11, 1.12, 1.13, 1.15, 1.16, 1.17, 1.18, 2.1-2.4.1, 2.5-2.7, 10, 14-16, 18.1-18.2.3, 18.2.4- 18.2.7, 18.2.8.2-18.3.2, 18.3.4, 18.3.5, 19, 22.1, 22.5, 22.7-22.12, 22.13.1.3, 22.13.1.5-22.13.1.7, 22.13.2.2, 22.13.2.4, 22.13.2.5, 23.1, 23.4, 23.6, 24 and 25 “signed” May 29, 2026 Hycroft Mining Holding Corporation 1.3-1.7, 1.15,3-9, 12, 20, 22.2-22.4, 22.13.1.1, 22.13.1.2, 22.13.2.1, 23.1-23.3 and 24 “signed” May 29, 2026 Independent Mining Consultants, Inc. 1.9, 1.10, 1.15, 1.18, 2.4.2, 11, 13, 18.2.3, 18.2.8.1, 18.3.1, 18.3.3, 22.6, 22.13.1.4, 22.13.2.3, 23.1, 23.5 and 24 “signed” May 29, 2026 WestLand Engineering & Environmental Services, Inc. 1.14, 17, 22.1, and 24 “signed” May 29, 2026 Hycroft Mine Project S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Table of Contents 1 Executive Summary 1 1.1 Introduction 1 1.2 Terms of Reference 1 1.3 Mineral Tenure, Surface Rights, Water Rights, and Agreements 2 1.4 History 2 1.5 Geology and Mineralization 3 1.6 Exploration 4 1.7 Sampling 4 1.8 Metallurgical Testwork 4 1.9 Mineral Resource Estimate 5 1.10 Mining Methods 9 1.11 Processing and Recovery Methods 9 1.12 Infrastructure 10 1.12.4 Tailings Management Facility 11 1.12.5 Waste Rock Storage Facility (WRSF) 11 1.12.6 Power, Communications, and Fuel 11 1.12.7 Water Supply and Management 12 1.12.8 Hazard Considerations 12 1.13 Market Studies and Contracts 12 1.14 Environmental, Permitting and Social Considerations 12 1.14.1 Environmental Considerations 12 1.14.2 Permitting Considerations 13 1.14.3 Social Considerations 14 1.14.4 Closure and Reclamation Considerations 14 1.15 Capital and Operating Cost 14 1.15.1 Capital Cost Estimate 14 1.15.2 Operating Cost Estimate 15 1.16 Economic Analysis 15 1.16.1 Economic Summary 15 1.16.2 Sensitivity Analysis 18 1.17 Conclusions 19 1.18 Recommendations 19 Hycroft Mine Project Page i S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 2 Introduction 20 2.1 Introduction 20 2.2 Terms of Reference 20 2.3 Qualified Persons 21 2.4 Site Visits and Scope of Personal Inspection 21 2.4.1 Site inspection for Jonathan Cooper 21 2.4.2 Site inspection for John Marek 21 2.5 Effective Dates 21 2.6 Information Sources and References 21 2.6.1 General 21 2.6.2 Previous Technical Reports 22 2.7 Currency, Units, Abbreviations and Definitions 22 3 Property Description 26 3.1 Introduction 26 3.2 Property and Title in Jurisdiction 26 3.3 Project Ownership 27 3.4 Property Agreements 29 3.5 Surface Rights 32 3.6 Water Rights 32 3.7 Liabilities and Encumbrances 32 3.8 Environmental Considerations 32 3.9 Safety Considerations 33 3.10 Permitting Considerations 33 3.10.1 Hycroft Expansion Permitting and Timelines 35 3.10.2 Crofoot Heap Leach Facility Closure 37 3.11 Social License Considerations 37 3.12 Project Risks and Uncertainties 37 4 Accessibility, Climate, Local Resources, Infrastructure and Physiography 38 4.1 Physiography 38 4.2 Accessibility 38 4.3 Climate 38 4.4 Local Resources and Infrastructure 38 4.5 Seismicity 41 5 History 42 5.1 Regional History 42 5.2 Property Exploration History 42 5.3 Production 42 Hycroft Mine Project Page ii S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 6 Geological Setting, Mineralization, and Deposit 44 6.1 Geological Setting 44 6.1.1 Regional Geology 44 6.1.2 Local Geology 44 6.2 Mineralization and Alteration 45 6.2.1 Brimstone 46 6.2.2 Vortex 47 6.2.3 Bay 48 6.2.4 Central 50 6.2.5 Camel 50 6.3 Deposit Types 51 7 Exploration 52 7.1 Exploration 52 7.2 Geological Mapping 52 7.3 Geophysics 52 7.4 Soil Sampling 53 7.5 Rock-Chip Sampling 53 7.6 Drilling 53 7.6.1 Introduction 53 7.6.2 Exploration Drilling 54 7.7 Hydrogeology 58 7.8 Geotechnical 58 7.9 Exploration Targets 59 8 Sample Preparation, Analyses, and Security 66 8.1 Introduction 66 8.2 Sample Preparation 66 8.3 Assay Methods 66 8.3.1 Sample Security 70 8.4 Sample Storage 70 8.5 Analytical Results 70 8.6 QP Comment 70 9 Data Verification 71 9.1 Verification Procedure 71 9.2 Certificate of Assay Checks 71 9.3 QA/QC 2005 – 2024 71 9.3.1 Standards 2005-2013 72 9.3.2 Blanks 2008 - 2014 74 Hycroft Mine Project Page iii S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 9.3.3 Check Assays 2011-2012 75 9.3.4 Standards 2021 – 2022 77 9.3.5 Blank Analysis Results 2021-2022 78 9.3.6 Duplicate Assays, 2021-2022 79 9.3.7 Standards 2023 – 2024 80 9.3.8 Blanks 2023-2024 81 9.3.9 Duplicate Assays 2023-2024 81 9.3.10 Check Assays 2023-2024 84 9.3.11 DDH vs. RC for Post 2000 Samples 85 9.3.12 Old vs. New Drilling 86 9.3.13 Downhole Surveys 87 9.4 QP Comment 87 10 Mineral Processing and Metallurgical Testing 88 10.1 Introduction 88 10.2 Metallurgical Testwork 89 10.2.1 Summary of Metallurgical Testwork Programs 89 10.2.2 Mineralized Materials and Sampling 89 10.2.3 Hycroft Mineralization Domains 89 10.3 Legacy Testwork 91 10.3.1 Comminution Tests 91 10.3.2 Flotation 91 10.3.3 Direct Cyanidation 102 10.3.4 Concentrate Oxidation Tests 102 10.3.5 Solid-Liquid Separation Tests 109 10.3.6 Deleterious Elements 109 10.3.7 Metallurgical Parameters for Process Design Criteria and Financial Analysis 109 11 Mineral Resource Estimates 111 11.1 Summary 111 11.2 Model Location 111 11.3 Database 111 11.4 Basic Statistics 113 11.5 Geology 113 11.6 Lithology 113 11.7 Alteration 114 11.8 Structure 115 11.9 Domains 117 11.10 Assay Caps 120 Hycroft Mine Project Page iv S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 11.11 Bench Height Confirmation 121 11.12 Composites 122 11.13 Variography 125 11.14 Block Grade Estimation 126 11.14.1 Gold 126 11.14.2 Silver 126 11.14.3 Cyanide Ratio 129 11.14.4 Sulfide Sulfur 130 11.14.5 Density 132 11.14.6 Stockpile Grade Estimation 132 11.14.7 Treatment of 1982 – 1987 Data 133 11.15 Classification 134 11.16 Model Verification 135 11.16.1 Swath Plots 137 11.16.2 Smear Check 141 11.17 Mineral Resource Estimate 142 12 Mineral Reserve 149 13 Mining Methods 149 13.1 Overview 149 13.2 Geotechnical and Hydrologic Information 153 13.3 Phase Design 153 13.4 Production Schedule 157 13.5 Mining Equipment 171 13.6 Mine Manpower Requirements 172 14 Processing and Recovery Methods 175 14.1 Overview 175 14.2 Process Flowsheet 176 14.3 Plant Design 178 14.4 Process Description 180 14.4.1 Crushing Area 180 14.4.2 Grinding Circuit 181 14.4.3 Rougher Flotation 181 14.4.4 Concentrate Thickening 182 14.4.5 POX and Neutralization 182 14.4.6 Gold and Silver Recovery from Flotation Concentrate 185 14.4.7 CCD Circuit 185 14.4.8 Merrill-Crowe Precipitation and Refinery (Existing) 186 Hycroft Mine Project Page v S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 14.4.9 Cyanide Destruction 187 14.4.10 Final Tailings and Reclaim Water Transport 187 14.5 Energy, Water, and Process Materials Requirements 187 14.5.1 Reagent Handling and Storage 187 14.5.2 Fresh Water, Fire Water and Potable Water 189 14.5.3 Process Water, and Barren Solution 189 14.5.4 Oxygen Plant 190 14.5.5 Electrical Power 190 14.5.6 High-Pressure and Low-Pressure Air 190 15 Infrastructure 191 15.1 Introduction 191 15.2 Site Access 192 15.2.1 Offsite Access and Security 192 15.2.2 Onsite Access 193 15.2.3 Rail Spur 193 15.3 New Infrastructure 195 15.3.1 New and Existing Facilities Layout 195 15.3.2 Upgrades to Existing Facilities 203 15.3.3 Accommodation 203 15.4 Stockpiles 204 15.4.1 Mineralized Stockpiles 204 15.4.2 Growth Media Stockpile 204 15.4.3 Limestone Stockpile 204 15.5 Tailings Management Facilities 204 15.5.1 Facility Design Basis 205 15.5.2 TMF Design 208 15.6 Waste Rock Storage Facility 212 15.7 Power and Electrical 213 15.8 Communication 215 15.9 Fuel 215 15.10 Water Supply and Management 215 15.10.1 Fresh Water, Fire Water and Potable Water 216 15.10.2 Tailings Water Management 217 15.10.3 WRSF Water Management 218 15.10.4 Plant Site Stormwater Runoff and Drainage 219 15.10.5 Site Water Balance 219 15.10.6 Pit Dewatering 222 Hycroft Mine Project Page vi S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 15.11 Hazard Considerations 222 15.12 Comments on Project Infrastructure 222 16 Market Studies and Contracts 224 16.1 Market Studies 224 16.2 Commodity Price Projections 224 16.3 Contracts 224 17 Environmental Studies, Permitting, and Plan, Negotiations, or Agreements with Local Individuals or Groups 225 17.1 Overview 225 17.2 Environmental Considerations 225 17.2.1 Baseline and Supporting Studies 225 17.2.2 Environmental Monitoring 228 17.2.3 Water Management 229 17.3 Permitting Considerations 229 17.3.1 Federal Permits 230 17.3.2 State of Nevada Permits 233 17.3.3 Additional Permits and Authorizations 234 17.4 Social Considerations 235 17.4.1 National Register of Historic Places 236 17.5 Closure and Reclamation Planning 237 17.5.1 Closure and Reclamation Plans 237 17.5.2 Closure Cost Estimates 237 17.6 Comments on Environmental Studies, Permitting and Social or Community Impact 237 18 Capital and Operating Costs 238 18.1 Introduction 238 18.2 Capital Costs 238 18.2.1 Overview 238 18.2.2 Basis of Estimate 239 18.2.3 Mine Capital Costs 239 18.2.4 Process Capital Costs 241 18.2.5 Infrastructure Capital Costs 242 18.2.6 Indirect Capital Costs 242 18.2.7 Owner (Corporate) Capital Costs 243 18.2.8 Sustaining Capital 243 18.2.9 Contingency Costs 245 18.2.10 Closure and Reclamation Planning 245 18.3 Operating Costs 245 18.3.1 Overview 245 Hycroft Mine Project Page vii S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 18.3.2 Basis of Estimate 246 18.3.3 Mine Operating Costs 247 18.3.4 Process Operating Costs 248 18.3.5 General and Administrative Operating Costs 252 19 Economic Analysis 253 19.1 Overview 253 19.2 Methodologies Used 254 19.3 Financial Model Parameters 254 19.3.1 Assumptions 254 19.3.2 Taxes 254 19.3.3 Royalties 255 19.4 Economic Analysis 255 19.5 Sensitivity Analysis 260 20 Adjacent Properties 264 21 Other Relevant Data and Information 264 22 Interpretation and Conclusions 265 22.1 Introduction 265 22.2 Mineral Tenure, Surface Rights, Water Rights, Royalties and Agreements 265 22.3 Geology and Mineralization 265 22.4 Exploration 265 22.5 Metallurgical Testwork 266 22.6 Mineral Resource Estimate 266 22.7 Recovery Plan 267 22.8 Infrastructure 268 22.8.1 Tailings Management Facility 269 22.9 Markets and Contracts 269 22.10 Capital Cost Estimate 269 22.11 Operating Cost Estimate 269 22.12 Economic Analysis 270 22.13 Risks and Opportunities 270 22.13.1 Risks 270 22.13.2 Opportunities 272 23 Recommendations 273 23.1 Estimated Program Costs 273 23.2 Exploration 273 23.3 Sample Preparation, Analysis and Security 274 Hycroft Mine Project Page viii S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 23.4 Metallurgical Testing 274 23.5 Mineral Resource Estimate 275 23.6 Infrastructure 275 23.6.1 TMF 275 24 References 277 25 Reliance on Information Provided by the Registrant 281 Appendix A – Patented Claims 282 Appendix B – Unpatented Claims 283 List of Tables Table 1-1: Hycroft MRE as of January 21, 2026, US customary Units 6 Table 1-2: Hycroft MRE as of 21 January 2026, Metric Units 7 Table 1-3: High-grade Silver Bearing Domains, Contained Within the MRE at 2 oz/ton Cutoff Grade, US customary Units 8 Table 1-4: High-grade Silver Bearing Domains, Contained Within the MRE at 68.57 g/tonne (2 oz/tonne) Cutoff Grade, Metric Units 8 Table 1-5: Principal Environmental Permits 13 Table 1-6: Other Notifications or Ministerial Permits 13 Table 1-7: Capital Cost Summary 14 Table 1-8: Operating Cost Summary 15 Table 1-9: Economic Analysis Summary 17 Table 2-1: Abbreviations and Acronyms 22 Table 2-2: Units of Measurement 24 Table 3-1: Hycroft Annual Land Holding Costs 29 Table 3-2: Hycroft Operating Permits 33 Table 3-3: Hycroft Miscellaneous Permits 34 Table 3-4: Hycroft Miscellaneous Permits 34 Table 3-5: Right-of-Way Payment and Renewal Schedule 34 Table 4-1: Hycroft Water Wells and Permitted Yearly Consumption 41 Table 7-1: Drilling from 2023 and 2024 Supporting the Updated MRE 56 Table 7-2: Significant Intercepts (2023) 60 Table 7-3: Significant Intercepts (2024) 62 Table 9-1: Nearest Neighbor Sample Comparison of RC vs Diamond Core Gold and Silver Assays 86 Table 9-2: Nearest Neighbor Sample Comparison of 1982-1987 Gold Assays Versus 2005 – 2024 Gold Assays 87 Hycroft Mine Project Page ix S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Table 10-1: Metallurgical Testwork Summary 8 9 Table 10-2: Average Sulfur Contents of Oxide, Transition and Sulfide Mineralized Materials 90 Table 10-3: Summary of Test Samples 90 Table 10-4: Grindability Test Summary 91 Table 10-5: G&T Composites 1 through 24 Flotation Test Results 93 Table 10-6: G&T Composites M-1 through M-17 Flotation Test Results 94 Table 10-7: Flotation Reagent Schemes Studied 95 Table 10-8: Estimated Metallurgical Recoveries from 2016 Feasibility Study – Gold and Silver 103 Table 10-9: Hycroft Alkaline POX Testwork Summary 106 Table 10-10: Hycroft Acid POX Testwork Summary 106 Table 10-11: Summary Comparison Table – POX 3 to POX-7 108 Table 10-12: Settling Test Results 109 Table 10-13: Deleterious Element Assay 109 Table 10-14: Process Plant Overall Recovery Prediction 109 Table 11-1: Block Size and Model Size 110 Table 11-2: Data Available for the Assembly of the Resource Model for Au, Ag, AuCn, Sulfide Sulfur 111 Table 11-3: Assay Database (No Stockpile Assays, Inside the Model, and No Drilling from 1982 through 1987) 112 Table 11-4: Population Domains for Grade Estimation 117 Table 11-5: High-grade Silver Vein Domains 118 Table 11-6: Sulfide Domains 118 Table 11-7: Assay Cap Values 120 Table 11-8: Sulfide Cap Values Prior to Compositing 121 Table 11-9: Basic Statistics of Composites, In-Situ Rock, Eliminating Years 1982 to 1987 123 Table 11-10: Basic Statistics of 25 ft Sulfide Composites by Sulfide Domain 125 Table 11-11: Grade Estimation Parameters for Au, Ag 127 Table 11-12: Estimation Parameters for Cyanide Ratio, All Three Domains utilized 1/D3 130 Table 11-13: Sulfide Sulfur Estimation Parameters, All Three Domains Utilized 1/D3 131 Table 11-14: Sulfide Sulfur Default Values if Not Estimated 131 Table 11-15: Density Assigned to the Block Model 132 Table 11-16: Stockpiles Assigned Grades by Inverse Distance Estimation 133 Table 11-17: IMC Smear Check 141 Table 11-18: Economic and Technical Parameters for Hycroft MRE 144 Table 11-19: Hycroft MRE as of January 21, 2026, US customary Units 145 Table 11-20: Hycroft MRE as of 21 January 2026, Metric Units 146 Table 11-21: High-grade Silver Bearing Domains, Contained within the MRE at 2 oz/ton Cutoff Grade, US customary Units 147 Table 11-22: High-grade Silver Bearing Domains, Contained within the MRE at 3 oz/ton Cutoff Grade, US customary Units 147 Hycroft Mine Project Page x S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Table 11-23: High-grade Silver Bearing Domains, Contained within the MRE at 4 oz/ton Cutoff Grade, US customary Units 148 Table 11-24: High-grade Silver Bearing Domains, Contained within the MRE at 68.57 g/ton (2 oz/ton) Cutoff Grade, Metric Units 148 Table 11-25: High-grade Silver Bearing Domains, Contained within the MRE at 102.86 g/ton (3 oz/ton) Cutoff Grade, Metric Units 148 Table 11-26: High-grade Silver Bearing Domains, Contained within the MRE at 137.14 g/t (4 oz/ton) Cutoff Grade, Metric Units 148 Table 13-1: Hycroft Initial Assessment Mine Production Schedule, Measured and Indicated Mineralization 151 Table 13-2: Summary of Lerch-Grossman Computer Pit Generation 154 Table 13-3: Contained Tonnage by Internal Cutoff Grade 155 Table 13-4: Major Mine Equipment 172 Table 13-5: Mine Hourly Personnel 173 Table 13-6: Mine Salaried Staff 174 Table 14-1: Process Design Criteria 178 Table 14-2: Major Process Equipment 179 Table 14-3: Summary of Reagent Used in the Process Plant 188 Table 14-4: Annual Consumption for Major Reagents 189 Table 15-1: Existing Hycroft Buildings 196 Table 15-2: New Ancillary Facilities Planned over the LOM 203 Table 15-3: Proposed Upgrades for Existing Facilities 203 Table 15-4: Minimum Pre-feasibility Seismic Design Criteria for Stability for Very High Dam Classification 206 Table 15-5: Minimum Pre-feasibility Hydrologic Design Criteria for Very High Dam Classification 206 Table 15-6: Selected Ground Motions and Associated Seismic Coefficients 211 Table 15-7: Weather Station Summary 216 Table 15-8: Summary of Storm Event with Associated Rainfall Intensity 216 Table 15-9: Monthly Maximum Flows Demand 221 Table 17-1: Current Major Environmental Permits and Permits Necessary to Operate the Mine 230 Table 17-2: Ministerial Permits, Plans and Notifications 234 Table 18-1: Capital Cost Summary 238 Table 18-2: Baseline Mine Capital Cost (without Accuracy or Contingency adjustment) 240 Table 18-3: Process Plant Capital Cost Breakdown 241 Table 18-4: On-Site Infrastructure Capital Cost Breakdown 242 Table 18-5: Off-Site Infrastructure Capital Cost Breakdown 242 Table 18-6: Indirect Capital Cost Breakdown 243 Table 18-7: Mining Sustaining Capital Costs 244 Table 18-8: Operating Cost Summary 246 Table 18-9: Mine Operating Cost per Ton of Total Material Moved, US$/ton (Mine Costs) 248 Table 18-10: Process Plant Operating Cost Summary 248 Table 18-11: Process Plant Labor Cost Summary 249 Hycroft Mine Project Page xi S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Table 18-12: Reagent Consumption Summary 250 Table 18-13: Process Plant Consumable Consumption Summary 251 Table 19-1: Economic Analysis Summary Table 256 Table 19-2: Life of Mine Economics 257 Table 19-3: Pre-Tax NPV (US$M) and IRR (%) Sensitivity Analysis 260 Table 19-4: Post-Tax NPV (US$M) and IRR (%) Sensitivity Analysis 261 Table 22-1: Hycroft Mineral Resources as of 21 January 2026, US customary Units 267 Table 22-2: High-grade Silver Bearing Domains, Contained within the Mineral Resource at 2 oz/ton Cutoff Grade, US customary Units 267 Table 23-1: Estimated Program Costs 273 Table 25-1: Information Provided by Hycroft 281 List of Figures Figure 1-1: Post-Tax Sensitivity Analysis Results 18 Figure 3-1: Hycroft Mine Location Map 27 Figure 3-2: Claim Map 30 Figure 3-3: Current Property and Facilities Layout (2025) 31 Figure 4-1: Onsite Lab, Admin, Maintenance, Truck Shop, and Warehouse 39 Figure 4-2: Crusher and Conveyor Belt Circuit 39 Figure 4-3: North Merrill-Crowe Facility 40 Figure 4-4: Stage 1 Heap Leach Pad and Ponds Along Jungo Road 40 Figure 6-1: Stratigraphic Column for Hycroft Deposit Area 45 Figure 6-2: Simplified East–West Cross Section Through the Hycroft Mine – Section 40600 N 45 Figure 6-3: Vortex Alteration Cross-Section – 40600 N 48 Figure 6-4: Bay Geologic Cross-Section at 50300-N 49 Figure 6-5: Generalized Epithermal Diagram 51 Figure 7-1: Drill Collar Location Plan 55 Figure 9-1: Results of Submitted Gold Standards 2005 - 2013 73 Figure 9-2: Results of Submitted Silver Standards 2005-2013 74 Figure 9-3: Results of Blank Submissions 75 Figure 9-4: Check Assay Results, Fire Assay Gold 2011 - 2012 76 Figure 9-5: Check Assay Results, Fire Assay Silver 2011 – 2011 77 Figure 9-6: Standards Results, 2021 – 2022 78 Figure 9-7: Blank Results, 2021 – 2022 79 Figure 9-8: Duplicate Assay Results, 2021 – 2022 79 Hycroft Mine Project Page xii S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Figure 9-9: Gold Standards 2023 – 2024 80 Figure 9-10: Blank Insertions 2004 81 Figure 9-11: Gold Duplicates, 2023-2024 82 Figure 9-12: Silver Duplicates, 2023-2024 83 Figure 9-13: Gold Check Assays 2023 – 2024 84 Figure 9-14: Silver Check Assays, 2023-2024 85 Figure 10-1: Recovery Vs. Time Plot, G&T Kamloops Tests, M Composites 96 Figure 10-2: Gold Grade Distribution Chart 97 Figure 10-3: Silver Grade Distribution Chart 97 Figure 10-4: Total Sulfur Grade Distribution 98 Figure 10-5: Sulfide Sulfur Grade Distribution 98 Figure 10-6: FLS Variability Flotation Recoveries under Optimal Conditions (137 Test Samples) 100 Figure 10-7: FLS Variability Flotation Gold Recoveries Based on Gold Head Grade Groups 101 Figure 10-8: FLS Variability Flotation Silver Recoveries Based on Head Grade Groups 101 Figure 10-9: Oxidation of Central Flotation Concentrate: Sulfate Spike Test 104 Figure 10-10: Demonstration Plant Cyanide Leach Recovery of Au and Ag 104 Figure 11-1: East–West Cross-Section 44000-N Looking North, Showing Lithology Types 114 Figure 11-2: East–West Cross-Section 44000-N Looking North, Showing Alterations 115 Figure 11-3: Structure and Domain Interpretation (Plan View) 116 Figure 11-4: Structure and Domain Interpretation with Silver Wireframes (plan view) 119 Figure 11-5: Bench Height Analysis 122 Figure 11-6: Gold Variograms for Silicic Material Between the Central Fault and East Fault 125 Figure 11-7: Gold Variograms for Silicic Material Between the Range Fault and Central Fault 125 Figure 11-8: E-W Cross-section at 41000-N, Showing Confidence Codes 135 Figure 11-9: E-W Cross-section at 41000-N, Visual Check of Gold Grades in Drillholes and Block Model 136 Figure 11-10: E-W Cross-section at 41000-N, Visual Check of Silver Grades in Drillholes and Block Model 137 Figure 11-11: Swath Plots for Gold, X = East and Y = North Slices, 160 ft Wide Slices 138 Figure 11-12: Swath Plots for Silver, X = East and Y = North Slices, 160 ft Slices 139 Figure 11-13: Swath Plots for Sulfide Sulfur, X = East and Y = North Slices, 160 ft Slices 140 Figure 13-1: Hycroft Initial Assessment Mine Plan Schedule 150 Figure 13-2: Summary of Lerch-Grossman Computer Pit Generation 155 Figure 13-3: Phase Schematic and Extraction Sequence 156 Figure 13-4: Approximate Recovered Gold by Year 158 Figure 13-5: Approximate Recovered Silver by Year 158 Figure 13-6: Approximate Recovered Equivalent Gold Ounces by Year Based on $3,100/oz Au and $36/oz Ag 159 Figure 13-7: Mine and Waste Storage Plan – Pre-production 160 Figure 13-8: Mine and Waste Storage Plan - End of Year 1 161 Figure 13-9: Mine and Waste Storage Plan – End of Year 2 162 Figure 13-10: Mine and Waste Storage Plan - End of Year 3 163 Hycroft Mine Project Page xiii S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Figure 13-11: Mine and Waste Storage Plan - End of Year 4 164 Figure 13-12: Mine and Waste Storage Plan – End of Year 5 165 Figure 13-13: Mine and Waste Storage Plan – End of Year 10 166 Figure 13-14: Mine and Waste Storage Plan – End of Year 20 167 Figure 13-15: Mine and Waste Storage Plan – End of Year 30 168 Figure 13-16: Mine and Waste Storage Plan – End of Year 40 169 Figure 13-17: Mine and Waste Storage Plan – End of Year 51 170 Figure 14-1: Sulfide Sulfur Process Plant Flowsheet 176 Figure 15-1: Site Layout 191 Figure 15-2: Site Access and Major Towns Near Hycroft Mine 192 Figure 15-3: Rail Spur Design 194 Figure 15-4: Overall Site Layout 197 Figure 15-5: Existing Crushing Facility and Surrounding Infrastructure 198 Figure 15-6: The Proposed Process Plant Generic Site Plan 199 Figure 15-7: Proposed Limestone Plant and Rail Spur 200 Figure 15-8: North Merrill-Crowe Plant 201 Figure 15-9: Existing Mine Ancillary Buildings 202 Figure 15-10: TMF Facility Layout 207 Figure 15-11: TMF Main Dam Section 208 Figure 15-12: TMF North Dam Section 209 Figure 15-13: TMF Closure Plan 212 Figure 15-14 Waste Rock Storage Facilities 213 Figure 15-15: Proposed Power Line from Imlay Relay Station (Nevada Historical Marker 49) to Jungo Road (49 Road) - NTS 214 Figure 15-16: Proposed Power Line along Jungo Road (Road 49) to Hycroft Mine Site (in total approximately 57 miles) - NTS 215 Figure 15-17: Hycroft Water Balance Schematic 220 Figure 15-18: Total Fresh Water Demand 221 Figure 19-1: Project Post-Tax Unlevered Cashflow 255 Figure 19-2: Pre-Tax Sensitivity Analysis Results 262 Figure 19-3: Post-Tax Sensitivity Analysis Results 263 Figure 20-1: Location of Rosebud Property 264 Hycroft Mine Project Page xiv S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 1 Executive Summary 1.1 Introduction This technical report summary (TRS) has been prepared by Ausenco Engineering USA South Inc. (Ausenco), Independent Mining Consultants, Inc. (IMC), and WestLand Engineering & Environmental Services, Inc. (WestLand) for Hycroft Mining Holding Corporation (Hycroft), following the reporting requirements of the United States (US) Securities and Exchange Commission’s (SEC) Modernization of Property Disclosures of Mining Registrants under subpart 1300 and item 601 (96)(B)(iii) of Regulation S-K for an initial assessment (IA). This TRS is an initial assessment with an economic analysis (IA-EA) and, filed on Electronic Data Gathering, Analysis, and Retrieval (EDGAR). The IA-EA is based on heap leaching the oxide material, while sulfide material is milled and processed using the pressure oxidation (POX) process. Transition material will be controlled by Hycroft grade control and may be processed with the sulfide material or heap leached with the oxide material. This TRS includes drill results received through March 17, 2025, which formed the basis of the Mineral Resource Estimate (MRE) model. The Hycroft mine (the Mine) is situated on the western flank of the Kamma Mountains on the eastern edge of the Black Rock Desert approximately 54 miles west of Winnemucca in Humboldt and Pershing Counties, Nevada. The Mine property straddles Townships 34, 35, 35½ and 36 north and Ranges 28, 29 and 30 east (MDB&M) with its central coordinates at approximately latitude 40°52’ north and longitude 118°41’ west. The Mine is accessible via Nevada State Route 49 (Jungo Road), an unpaved road maintained by Humboldt County and Pershing County and Hycroft. The Union Pacific railway, a major east–west railway, runs immediately adjacent to the property. Hycroft, a past producer, has existing facilities on site including two administration buildings, a mobile maintenance shop, a light vehicle maintenance shop, a warehouse, multiple leach pads, primary, secondary and tertiary crushing systems, an assay lab, one Merrill-Crowe process plant, and a refinery. 1.2 Terms of Reference The firms and consultants who are providing Qualified Persons (QPs) responsible for the content of the TRS are, in alphabetical order, Ausenco, Hycroft, IMC and WestLand. The TRS presents the IA-EA for the mine based on the POX and Heap Leach processes. All units of measurement in the TRS are US customary, unless otherwise stated. The monetary units are in US dollars, unless otherwise stated. Mineral resources are reported in accordance with the US Securities and Exchange Commission Code of Federal Regulations, Subpart 229.1300 – Disclosure by Registrants Engaged in Mining operations (S-K 1300). Hycroft Mine Project Page 1 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 1.3 Mineral Tenure, Surface Rights, Water Rights, and Agreements The Mine property consists of 25 private parcels with patented claims totaling approximately 1,855 acres, along with 3,249 unpatented mining claims covering approximately 62,298 acres, for a combined total of approximately 64,000 acres. On May 15, 2023, Hycroft expanded its holdings by acquiring a 50% undivided interest in three additional patented mining claims, adding approximately 61 acres at one location in Northern Nevada. Some mining claims overlap other Hycroft Mining claims to ensure there are no fractional gaps in mining claim coverage. These claims are contiguous or proximate to the original Crofoot and Lewis claims. Payment of annual claim maintenance and holding fees to the Bureau of Land Management (BLM) and Humboldt and Pershing Counties and payment of annual real property taxes for patented claims in Humboldt and Pershing Counties are made every third quarter (Q3). Payments are current through the 2025–2026 claim years, with US$724,095 paid for 2025–2026. Payment of annual claim maintenance and holding fees and real property taxes are required to hold the Hycroft property in good standing. BLM annual maintenance fees for claims are due not later than September 1 of each year. Humboldt and Pershing County State annual holding fees beginning September 1 of each year are due no later than November 1 of each year. Annual real property taxes for patented claims in Humboldt and Pershing Counties are due August 31 of the following year. Hycroft controls all surface and mineral rights within the Hycroft MRE area. No further land acquisition is required for the operation of the mine and contemplated processing facilities. 1.4 History The Mine location is in the Nevada Sulfur District, where mining for native sulfur began in the late 1800’s. In the early part of the 20 th century high-grade Ag was mined as were veins of nearly pure alunite (hydroxylated aluminum potassium sulfate mineral) in the southern part of the district. From 1941 to 1943, cinnabar (a mercury sulfide mineral) was also mined. Exploration for native sulfur commenced again in 1966 with the Duval Corporation (Duval) reporting elevated Au and Ag values but finding no significant evidence of a sulfur deposit at depth (Wallace, 1980). In 1977, the Cordex Syndicate mapped and rock-chip sampled the Hycroft property, recognizing the potential for a bulk tonnage, low-grade precious metal deposit. Homestake then took interest in the property and completed surface sampling and exploration drilling during 1981-1982. Mining officially began as a small heap leach operation in 1983 at what was then known as the Lewis Mine. In 1985, Vista gained control of the original Hycroft property. They also acquired the Lewis Mine in early 1987 from F. W. Lewis, Inc., and the Crofoot Mine in April 1988. From 1985 to 1999, they drilled 3,212 exploration holes, totaling 965,552 feet (ft) with the bulk of this drilling focused on oxide gold mineralization at Central, Bay and Brimstone. Production from the Brimstone pit commenced in 1985 and continued until December 1998. From 1983 to 1998, the Mine produced approximately 1.2 million ounces (Moz) of Au and 2.5 Moz of Ag. An additional 58,700 ounce (oz) of Au was produced from the leaching operations from 1999 through 2004. The remaining leasehold interest in the Lewis property was purchased by Vista in December 2005. Production followed at the former Crofoot property in the Bay, South Central, Boneyard, Gap, and Historic Cut-4 pits along the Central Zone. The Mine was placed on a care and maintenance program through 2007. In May 2007, the Nevada-based holdings of Vista were spun out into Allied Nevada Gold Corp. (Allied Nevada). The Mine was included as part of the transfer of ownership allowing Allied Nevada to explore, expand, and develop the resources. The Mine was reactivated in September 2007 and achieved planned ore production by the end of 2009. With the construction of the North leach pad in 2013, the total leach pad space was increased to more than 20 million square ft (ft 2 ). In 2010, the Mine began an expansion program that included construction of a 21,000 gallon per minute (gal/min.) Merrill-Crowe processing plant and a three-stage crushing facility as well as solution pumping capacity upgrades. Active mining was stopped again at the Mine in June 2015 due to low metal prices, but active leaching of previously mined ore continued through 2018. During this time, Allied Nevada emerged from its financial restructuring to become Hycroft Mining Corporation. Hycroft Mine Project Page 2 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 In late 2018, Hycroft began construction of new leach pads. In April 2019, active mining began with a focus on transition and sulfide minerals but were set aside for future processing. Active mining ceased in 2021, but gold and silver production continued through 2022. From September 2007 through July 2019 metal sales totaled approximately 900,000 oz of Au and 5.0 Moz of Ag. Active mining ceased and production at the Mine was terminated on November 11, 2021. Annual sales in ounces of Au and Ag produced from the Mine’s heap leach operations over years 2019 through 2022 total approximately 107,258 ounces of Au and 615,000 ounces of Ag. 1.5 Geology and Mineralization The Hycroft deposit is a low-sulfidation, epithermal, hot springs system that contains gold and silver mineralization. Radiometric dating indicates that the main phase of gold and silver mineralization was formed four million years ago, when hydrothermal fluids were fed upward along high angle, normal faults. Low-grade gold and silver mineralization were co-deposited with silica and potassium feldspar throughout porous rock types. A subsequent drop in permeability, due to sealing of the system, led to over pressuring and subsequent repeated hydrothermal brecciation. Additional precious metal mineralization was deposited during this event as breccia zones, veins, and sulfide flooding. Gold and silver mineralization was followed by an intense event of high sulfidation acid leaching of the mineralized volcanic rocks coincident with a regional water table drop. This allowed steam heated sulfur gases to condense into sulfuric acid and leach the upper portion of the mineralized rocks. Oxidation of sulfide mineralization occurs to variable depths over the deposit, depending upon proximity to faults, extent of acid leaching, and depth to water table. Sulfide content through the deposit is variable from 0% to 20%. A total of six major north-northeast trending, west dipping, normal fault zones appear to broadly control the distribution of alteration. From west to east, these fault zones are referred to as the Range, West Splay, Central, Break, Albert, and East Faults. These major structures down-drop stratigraphy and affect the distribution of alteration and mineralization. A post-mineral basin bounding fault appears to border the Camel Conglomerate and the adjacent Pleistocene Lahontan Lake sediments in the Black Rock Desert. Based on geophysics, this structure is approximately one to two miles west of the Mine site. There are several east–west trending structures that appear to provide post-mineral offset to the deposit. These form a series of horst and grabens within the deposit footprint. Hycroft Mine Project Page 3 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 1.6 Exploration The Hycroft property drill history covers the period from 1982 through 2024. Within the block model there are 5,813 drillholes, with 516,901 drill intervals amounting to 2,668,616 ft of drilling. During 2021 through 2024, Hycroft drilled 260 holes, 105 in 2021, 85 in 2022, 49 in 2023 and 21 in 2024. Most of the 2021 drilling was diamond core that was used for metallurgical testing and assay. The 2022 and 2023 drilling focused on extending mineralization and upgrading areas from inferred to measured and indicated classification. Since 2024, drilling has focused on high-grade mineralization in Brimstone and Vortex. 1.7 Sampling Hycroft provided IMC with the database which contained drilling information from 1982 through 2024. Assay data was received through March 2025. The current sample preparation analysis and security follow best practices and are acceptable for application to mineral resource reporting. The historic data collection is unknown. Components of the historic data have been found to be reliable. Some components are not reliable and have been removed or modified prior to incorporation into the MRE. After the noted adjustments, John Marek, the QP, finds the data applicable to the determination of the MRE. 1.8 Metallurgical Testwork Metallurgical testwork supporting the Hycroft process flowsheet has been conducted by several laboratories, including G&T Metallurgical Services Ltd. (G&T), SGS Mineral Services (SGS), Hazen Research Inc. (Hazen), FLSmidth Minerals Testing & Research Center (FLSmidth MTRC), and Kappes, Cassiday & Associates (KCA). The process design and metallurgical assumptions used in this study are primarily based on the most recent testwork completed by FLSmidth - MTRC and Hazen Research, with historical testwork from the other laboratories reviewed to support the interpretation of metallurgical performance and flowsheet development. Comminution testwork indicates that Hycroft mineralization is very high and requires relatively high grinding energy in ball mill grinding. Hycroft Mine Project Page 4 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 In 2021, Hycroft initiated a new metallurgical variability study to evaluate mineralized material characteristics within the current mine plan, validate the metallurgical performance across the deposit; and identify potential variations in processing conditions required to recover gold and silver. The objective of the study was to support development of a Hycroft process flowsheet, including definition of key process control points in crushing, grinding, capable of consistently achieving gold and silver recoveries across anticipated metallurgical variability. Key outcomes of this study included the development of the flotation process with significantly improved recoveries. The following key process controls parameters were identified during the flotation process development program: ● Optimal grind size is a P 80 of less than 85 micrometers (µm). ● Flotation time is 24 minutes. ● Adjusted pH level is 4.7. ● Flotation mass pull is 20 to 25% with 22% being the target. A total of 137 samples were tested under these selected conditions to achieve higher gold and silver recoveries to flotation concentrate. The results show that gold recovery exhibits a broader distribution, with values ranging from approximately 72 to 98% and a statistical median near 88%, indicating greater sensitivity across the tested samples. In contrast, silver recovery is generally higher, with recoveries spanning approximately 76 to 100% and a statistical median exceeding 92%. This is a significant improvement from the gold flotation recovery and silver flotation recovery values reported in a TRS prepared for Hycroft and filed in 2023 (the 2023 TRS). In 2025, Hycroft completed a series of POX tests demonstrating that POX at 225°C with oxygen overpressure, followed by hot cure, lime boil, and cyanide leaching, is a technically viable and repeatable processing route for the pyrite concentrate. Gold and silver recoveries of approximately 93% and 86%, respectively, were consistent with past performance. Overall, considering the full flowsheet involving flotation, POX, and leaching, gold recovery has improved to approximately 83% and silver recovery has improved to approximately 78%. Overall recovery for both gold and silver are exceeding the values assumed in the 2023 TRS. Hycroft existing heap leaching was discontinued in 2022. Heap leach operations are expected to restart once new oxide and transition material becomes available. 1.9 Mineral Resource Estimate The MRE on the Hycroft property is currently envisioned to be mined by way of a conventional hard rock open pit mine feeding two process facilities: 1. Run-of-mine (ROM) oxide material will be directed to cyanide heap leaching, producing a gold and silver doré. 2. Sulfide material will be directed to a crushing, flotation milling followed by POX of the concentrate to make a gold and silver doré. Transitional material will be directed to either (ROM) cyanide heap leaching or flotation milling followed by POX depending on the sulfide sulfur levels of the individual blocks, total sulfur content, and gold grade. The terms of reference for this MRE are mineralization in-place. The procedures described in the following paragraphs establish that the stated MRE has reasonable prospects for economic extraction of mineral resources. Mineral resources were developed using a computer-based block model for mineralization and pit optimization software to determine mineralization with reasonable prospectus for economic extraction. Hycroft Mine Project Page 5 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 The cutoff grade that is reported for this statement of mineral resources is based on mining and processing costs estimated by IMC and Ausenco combined with reasonable metal prices. The internal or marginal cutoff is applied and reported where the benefits of selling the recovered metal will pay for the processing and fixed general and administrative (G&A) costs. The cutoff is presented in terms of net of refining (NSR). Metal prices for the MRE were US$3,100/oz Au and US$36.00/oz Ag. Spot prices for gold and silver in 2025 ranged from US$2,798 to US$4,323/oz Au and US$31.34 to US$71.63/oz Ag. The spot prices for gold and silver on January 21, 2026, were US$4,726/oz Au and US$93.50/oz Ag. The prices selected for determination of the MRE are 35% below the spot gold price and 62% below the spot silver price on January 21, 2026. The risks to the MRE are project costs and project recoveries as well as metal prices that can have a substantial impact on the mineral resource both positively and negatively. The Hycroft MRE is sensitive to estimated parameters of operating costs, recoveries, and metal prices. That sensitivity may result in future variation in the mineral resource as costs and recoveries are refined. Mineral resources are not mineral reserves, and detailed economic considerations have not been applied. Table 1-1: Hycroft MRE as of January 21, 2026, US customary Units Classification Cutoff Grade $ Net of Refining Approximate Cutoff, AuEq oz/ton Ktons Gold oz/ton Silver oz/ton Sulfide Sulfur % Contained Ounces Gold Oz x 1000 Silver Oz x 1000 Heap Leach Resource Measured $1.88 - $3.63 0.001 - 0.002 92,994 0.005 0.11 1.83 446 10,322 Indicated $1.88 - $3.63 0.001 - 0.002 110,374 0.004 0.09 1.54 475 9,492 Meas + Ind $1.88 - $3.63 0.001 - 0.002 203,368 0.005 0.10 1.67 921 19,814 Inferred $1.88 - $3.63 0.001 - 0.002 110,018 0.005 0.09 1.41 528 10,122 Flotation Mill + Concentrate Treatment by Pressure Oxidation and Cyanide Leach Measured $16.73 0.007 734,571 0.011 0.43 2.03 8,154 316,600 Indicated $16.73 0.007 748,876 0.010 0.30 1.84 7,339 226,161 Meas + Ind $16.73 0.007 1,483,447 0.010 0.37 1.93 15,493 542,761 Inferred $16.73 0.007 459,646 0.010 0.27 1.76 4,505 122,725 Combined Mineral Resources Leach Plus Mill Measured $1.88 - $16.73 0.001 - 0.007 827,565 0.010 0.40 2.01 8,600 326,922 Indicated $1.88 - $16.73 0.001 - 0.007 859,250 0.009 0.27 1.80 7,814 235,653 Meas + Ind $1.88 - $16.73 0.001 - 0.007 1,686,815 0.010 0.33 1.90 16,414 562,575 Inferred $1.88 - $16.73 0.001 - 0.007 569,664 0.009 0.23 1.69 5,033 132,847 Notes: 1. Mineral resources based on metal prices of $3,100/troy oz Au and $36.00/troy oz Ag. 2. Cutoffs are Income – Refining Cost = NSR. 3. Gold Equivalent (AuEq) for Heap Leach = Cyanide Gold + 0.0019 x Total Silver Assay, or at average gold leach recovery AuEq = Fire Gold + 0.0035 Total Silver Assay. 4. Gold Equivalent for Mill + Pressure Oxidation = Fire Gold + 0.0107 x Total Silver Assay. 5. Numbers may not match exactly due to rounding. 6. Mineral resources are contained within a computer-generated optimized pit. 7. Total material in that pit is 5.42 billion tons. Hycroft Mine Project Page 6 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 8. Mineral resources are not mineral reserves, and detailed economic considerations have not been applied. 9. Modifying factors for mine and process design have not been applied. 10. All units are US customary. Ktons means 1,000 short tons. Au and Ag grades are in troy ounces per short ton (oz/ton). Table 1-2: Hycroft MRE as of 21 January 2026, Metric Units Classification Cutoff Grade $ Net of Refining Approximate Cutoff, AuEq g/tonne Ktonnes Gold Silver Sulfide Sulfur Contained Ounces Gold Silver g/tonne g/tonne % Oz x 1000 Oz x 1000 Heap Leach Resource Measured $2.07 - $4.00 0.027 - 0.055 84,364 0.164 3.80 1.83 446 10,322 Indicated $2.07 - $4.00 0.027 - 0.055 100,131 0.147 2.95 1.54 475 9,492 Meas + Ind $2.07 - $4.00 0.027 - 0.055 184,495 0.155 3.34 1.67 921 19,814 Inferred $2.07 - $4.00 0.027 - 0.055 99,808 0.164 3.15 1.41 528 10,122 Flotation Mill + Concentrate Treatment by Pressure Oxidation and Cyanide Leach Measured $18.44 0.206 666,403 0.380 14.76 2.03 8,154 316,600 Indicated $18.44 0.206 679,380 0.336 10.34 1.84 7,339 226,161 Meas + Ind $18.44 0.206 1,345,783 0.358 12.53 1.93 15,493 542,761 Inferred $18.44 0.206 416,991 0.336 9.14 1.76 4,505 122,725 Combined Mineral Resources, Leach Plus Mill Measured $2.07 - $18.44 0.027 - 0.206 750,767 0.356 13.53 2.01 8,600 326,922 Indicated $2.07 - $18.44 0.027 - 0.206 779,512 0.311 9.39 1.80 7,814 235,653 Meas + Ind $2.07 - $18.44 0.027 - 0.206 1,530,279 0.333 11.42 1.90 16,414 562,575 Inferred $2.07 - $18.44 0.027 - 0.206 516,799 0.303 7.99 1.69 5,033 132,847 Notes: 1. Mineral resources based on metal prices of $3,100/ oz Au and $36.00/ oz Ag. 2. Cutoffs are Income – Refining Cost = NSR. 3. Gold Equivalent for Heap Leach = Cyanide Gold + 0.0019 x Total Silver Assay. 4. Gold Equivalent for Mill + Pressure Oxidation = Fire Gold + 0.0107 x Total Silver Assay. 5. Numbers may not match exactly due to rounding. 6. Mineral resources are contained within a computer-generated optimized pit. 7. Total material in that pit is 4.92 billion tonnes. 8. All units on this table are metric: Ktonnes means 1,000 tonnes. Au and Ag grades are in grams per tonne (g/tonne). 9. Mineral resources are not mineral reserves, and detailed economic considerations have not been applied. 10. Modifying factors for mine and process design have not been applied. Contained within the MRE at Hycroft are a series of high-grade silver veins at Brimstone and zones of higher silver concentrations in Vortex that are associated with a low angle breccia body. Table 1-3 and Table 1-4 are the tabulation of gold and silver within the domain volumes that are contained within the MRE at 2 oz/tonne cutoff grade in US customary and 68.57 g/tonne cutoff grade in metric. Hycroft Mine Project Page 7 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Table 1-3: High-grade Silver Bearing Domains, Contained Within the MRE at 2 oz/ton Cutoff Grade, US customary Units Classification Cutoff Grade Silver (oz/ton) Ktons Gold (oz/ton) Silver (oz/ton) Sulfide Sulfur (%) Gold Contained oz x 1000 Silver Contained oz x 1000 Brimstone Measured 2.00 3,195 0.011 8.35 1.33 35 26,686 Indicated 2.00 330 0.010 3.11 1.87 3 1,025 Meas + Ind 2.00 3,525 0.011 7.86 1.38 38 27,711 Inferred 2.00 15 0.008 3.52 1.13 0 52 Vortex Measured 2.00 9,126 0.018 3.81 1.49 160 34,781 Indicated 2.00 7,342 0.014 3.78 1.24 100 27,726 Meas + Ind 2.00 16,468 0.016 3.80 1.38 261 62,507 Inferred 2.00 3,644 0.014 3.65 1.27 50 13,307 Brimstone + Vortex Measured 2.00 12,322 0.016 4.99 1.45 195 61,467 Indicated 2.00 7,671 0.013 3.75 1.26 104 28,750 Meas + Ind 2.00 19,993 0.015 4.51 1.38 299 90,218 Inferred 2.00 3,659 0.014 3.65 1.27 51 13,359 Table 1-4: High-grade Silver Bearing Domains, Contained Within the MRE at 68.57 g/tonne (2 oz/tonne) Cutoff Grade, Metric Units Classification Cutoff Grade Silver (g/tonne) Ktonnes Gold (g/tonne) Silver (g/tonne) Sulfide Sulfur (%) Contained Ounces Gold Oz x 1000 Silver Oz x 1000 Brimstone Measured 68.57 2,899 0.372 286.35 1.33 35 26,686 Indicated 68.57 299 0.332 106.62 1.87 3 1,025 Meas + Ind 68.57 3,198 0.368 269.54 1.38 38 27,711 Inferred 68.57 13 0.289 120.74 1.13 0 52 Vortex Measured 68.57 8,279 0.603 130.67 1.49 160 34,781 Indicated 68.57 6,660 0.469 129.48 1.24 100 27,726 Meas + Ind 68.57 14,940 0.543 130.14 1.38 261 62,507 Inferred 68.57 3,306 0.475 125.20 1.27 50 13,307 Brimstone + Vortex Measured 68.57 11,178 0.543 171.04 1.45 195 61,467 Indicated 68.57 6,959 0.463 128.49 1.26 104 28,750 Meas + Ind 68.57 18,137 0.512 154.71 1.38 299 90,218 Inferred 68.57 3,319 0.474 125.18 1.27 51 13,359 Hycroft Mine Project Page 8 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 1.10 Mining Methods Hycroft is planned as a conventional hard rock open pit operation. IMC developed a mine plan that produces the required process feed and moves sufficient mine waste to assure continued release of the mineralization. The mine plan is based on measured and indicated mineralization that was estimated in the mineral resource block model described in Section 11. Inferred mineralization was not included within this initial assessment for two reasons: (1) there is sufficient measured and indicated mineralization to feed the process plant for over 50 years, and (2) to reduce the changes in the mine schedule and potentially minable material as the project moves toward a pre-feasibility study in the future. The mine will feed two processing facilities: 1. A flotation mill followed by pressure oxidation and leaching of the concentrate. 2. A ROM heap leach for mineralization that is amenable to direct cyanide leaching. The mine production schedule is summarized in Figure 13-1 with tabular detail in Table 13-1. 1.11 Processing and Recovery Methods Hycroft property is currently envisioned to be mined by way of a conventional hard rock open pit mine feeding two process facilities: 1. Oxide Material – ROM oxide material will be directed to cyanide heap leaching, producing gold and silver doré. 2. Sulfide Material – Sulfide material will be directed to a crushing and flotation milling circuit, followed by pressure oxidation (POX) of the concentrate to produce a gold and silver doré. Transitional material will be routed to either ROM cyanide heap leaching or flotation milling followed by POX, depending on the sulfide sulfur levels of the individual blocks, total sulfide sulfur content, and gold grade. The process route will be determined based on grade control The existing Heap Leach facilities (Brimstone Heap Leach Pad and North Heap Leach Pad) will be expanded to accommodate additional capacity. These facilities have existing collection ponds and pumping systems. The leach solution distribution network will be expanded as required to support increased throughput. Hycroft Mine Project Page 9 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 For sulfide processing, the plant will utilize the existing crushing plant. Consisting of three stages of crushing, reducing the mineralized material from a nominal top size of approximately 35 inches (“) to about ⅜”. The crushed material is fed to a two-stage ball milling circuit operating in closed circuit with hydrocyclones, producing a grind suitable for downstream processing. Cyclone overflow will be directed to rougher flotation for recovery of gold and silver into a flotation concentrate. Rougher flotation tailings will be thickened prior to transfer to the final tailings pumping system. The flotation concentrate will be processed through POX to oxidize sulfide minerals and liberate gold and silver for downstream recovery. Following oxidation, the oxidized slurry will undergo counter-current decantation (CCD) washing to recover dissolved metal values and remove acidic process solutions. The washed solids are then conditioned through lime boil and hot curing prior to cyanide leaching. The conditioned solids will be leached in cyanide leach tanks to dissolve gold and silver. Precious metals will be recovered from the leach solution using the existing Merrill-Crowe zinc precipitation circuit, producing gold-silver doré. Residual cyanide in the leach tailings will be destroyed using a sulfur dioxide–oxygen detoxification process, after which the detoxified tailings will be combined with flotation tailings and pumped to the tailings management facility (TMF) for disposal. 1.12 Infrastructure The Hycroft Mine infrastructure scope represents a brownfield development within an established mining complex. The proposed sulfide ore processing plant will be integrated into existing site infrastructure via tie-ins to current crushing facilities, utilities, and site services. Most existing access roads, haul roads, and ancillary structures will remain in service or be selectively upgraded. 1.12.1 Site Access and Haulage New road infrastructure includes 0.6 miles of plant access roads, a 5.6-mile TMF access road parallel to the tailings delivery pipeline corridor, and a 3.4-mile TMF construction haul road connecting the North WRSF to the TMF embankment. All roads are designed as dirt roads with a maximum 10% grade and 25 miles per hour (mph) speed limit. A rail spur extension from the adjacent Union Pacific line will receive reagents, consumables, and fuel, and facilitate export of salable metals. The spur design by Mountain States Contracting Inc. includes turnouts, derails, signals, ballast, bridges, civil works, and a bottom-dump hopper car loadout facility. 1.12.2 New Infrastructure New process plant facilities will tie into the existing crushing circuit and North Merrill-Crowe facility. New onsite infrastructure includes utility tie-ins, power distribution upgrades, substations, a process control system and control room, and reagent handling facilities including an oxygen plant and limestone offloading and slaking system. Six new ancillary facilities are planned over the LOM including a covered crushed ore stockpile dome (313 ft diameter × 104 ft height), new assay lab, fuel station, technical services building, maintenance shop, and crusher maintenance building. Ten existing structures will be upgraded, relocated, or repurposed. Workforce accommodation will be drawn primarily from Winnemucca (~54 miles east), with personnel transported via contracted bus service. Hycroft Mine Project Page 10 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 1.12.3 Stockpiles Coarse ore stockpile capacity is 56,000 tons live and 175,400 tons total; crushed ore stockpile capacity is 34,000 tons live and 113,000 tons total, covered by a round dome structure. These stockpiles support crushing circuit availability of 31.3% for primary and 65.1% for combined secondary and tertiary crushing. Growth medium stripped during TMF construction will be stockpiled for reclamation use. Limestone will be delivered by rail to a dedicated onsite stockpile. 1.12.4 Tailings Management Facility The TMF uses conventional designs and will be constructed in a total of eight stages and zero discharge of process solutions. The TMF will fill the broad valley immediately northeast of the mill site and require the main and the north embankments to impound an ultimate tailings storage capacity of 1.05 billion tons (Btons) at an average settled dry density for the ultimate facility of 92 pounds per cubic ft (pcf). The main embankment will cross the natural drainage on the west side of the TMF, and the secondary embankment will be constructed along the northern ridge. The facility will provide continuous containment of process solutions through the installation of a vertical chimney drain and engineered geomembrane liner systems, extending across the impoundment basin and below a portion of the main embankment and the upstream slope of the north embankment. The design is capable of storing runoff from the basin and direct precipitation on the facility, resulting from the 5,000-year, 24-hour storm event during operation and the 10,000-year, 24-hour storm event for post-closure. 1.12.5 Waste Rock Storage Facility Two initial waste rock storage facility (WRSF) locations — west and south of the pit — will merge into a single facility on the southwest perimeter by Mine Year 10. The dump is designed with an overall slope of 2.7H:1V and inter-bench geometry of 1.5H:1V slopes with 50 ft high and 60 ft wide benches, constructed over previously disturbed ground. Water management consists of upstream diversion channels for non-contact water and a seepage collection system for contact water, comprising double-walled HDPE pipes (300 mm main, 100 mm secondary) sized for the 100-year, 24-hour event. Seepage is conveyed to double-lined GCL and HDPE collection ponds for reuse at the process plant. Surface water diversion channels are sized for the 100-year, 24-hour event with a minimum 2% slope and riprap lining. Physical stability will be monitored via survey markers, vibrating wire piezometers, hydraulic piezometers, and inclinometers throughout the LOM. Topsoil and growth media will be harvested from areas adjacent to the WRSF during closure to support reclamation. 1.12.6 Power, Communications, and Fuel Two 120 kV powerlines will supply the site via the Nevada Power Imlay Substation. Installed load is 160 MW with an operating load of 124 MW; total load including the oxygen plant is 170 MW, requiring additional transmission capacity. Site communications are currently served by microwave, fiber optic, and cellular systems and will be upgraded as required during execution. Diesel fuel is priced at $3.76/gallon; supply contracts are in place on an annual or bi-annual basis. Fuel will be delivered by rail once the spur is operational. The existing fuel island will be replaced with a high-efficiency system in mine years 3 and 4. Hycroft Mine Project Page 11 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 1.12.7 Water Supply and Management Hycroft holds 16 water-right permits sufficient to support all planned facilities and process demands. Plant freshwater demand is estimated at 7,260 gal/min, supplied via four existing wells with four additional production wells to be drilled. Tailings will be transported as slurry at 48% solids through an HDPE-lined pipeline, distributed via a 36” manifold system. Return water will initially be managed via the Underdrain Collection Pond, transitioning to barge-mounted pumps in the TMF supernatant pool in later years. GoldSim Monte Carlo water balance modeling over 250 simulations indicates average make-up water demand starting at 6,500 gal/min in year 1, declining to 3,200 gal/min by years 14–15. Pit dewatering will be managed by four depressurization wells with groundwater at approximately 700 ft below ground surface (bgs), with water conveyed to the process plant. Plant site stormwater is managed via perimeter ditches and a 9,850 yd³ HDPE-lined sedimentation pond sized for the 100-year, 24-hour event. 1.12.8 Hazard Considerations The site climate is arid at 7.7 in/a average precipitation with winter temperatures between 20 °F and 40 °F, introducing freeze-thaw cycling risk in near-surface soils. Seismicity is assessed as low to moderate with no active or capable faults identified. Principal pit slope stability controls are the argillically altered Camel Conglomerate, Auld Lang Syne Formation siltstones, and the East Fault. 1.13 Market Studies and Contracts No formal marketing studies have been completed. Gold and silver doré will be sold on the spot market under terms typical of comparable doré contracts. Both metals are globally liquid commodities supporting reliable price discovery throughout the LOM. The economic analysis assumes base case prices of US$3,600/oz gold and US$48.00/oz silver, based on long-term consensus forecasts from numerous financial institutions as of April 2026. No refining, transportation, or hedging contracts are currently in place, though these are considered readily obtainable. Refining and transportation costs are estimated at US$5.00/oz gold and US$0.50/oz silver based on comparable project terms. 1.14 Environmental, Permitting and Social Considerations 1.14.1 Environmental Considerations The Mine has conducted numerous environmental baseline studies as part of their previous permitting efforts and continues to collect certain environmental baseline data. The Mine area has been surveyed for surface water resources, including Waters of the United States (WOTUS), biological resources, cultural resources, and groundwater resources. In addition, the Mine has developed a series of environmental management and monitoring plans which are required to guide the development and operation of the Project to limit environmental impacts. These plans are developed to address legal requirements and committed Environmental Protection Measures (EPMs) made by the Mine during Project permitting and recent Plan of Operations amendments. Hycroft Mine Project Page 12 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 1.14.2 Permitting Considerations The Mine operates under a series of permits, which are issued by both federal and state regulators. The following table lists the principal environmental permits necessary to operate the Mine and the applicable issuing agency. Table 1-5: Principal Environmental Permits Operating Permits Issuing Agency Plan of Operations BLM Mercury Operating Permit to Construct NDEP Bureau of Air Pollution Control Class I Air Quality Operating Permit to Construct NDEP Bureau of Air Pollution Control Class II Air Quality Permit NDEP Bureau of Air Pollution Control Permit to Operate a Public Water System NDEP Bureau of Safe Drinking Water Water Pollution Control Permit-Crofoot Project NDEP Bureau of Mining Regulation & Reclamation Water Pollution Control Permit-Hycroft Mine NDEP Bureau of Mining Regulation & Reclamation Reclamation Permit NDEP Bureau of Mining Regulation & Reclamation Mining General Stormwater Pollution Prevention Permit NDEP Bureau of Water Pollution Control Class III Landfill Waiver NDEP Bureau of Waste Management Artificial Pond Permit (Brimstone Process Ponds) NV Department of Wildlife Artificial Pond Permit (Crofoot Process Ponds) NV Department of Wildlife Artificial Pond Permit (North Process Ponds) NV Department of Wildlife Septic Onsite Disposal NDEP Bureau of Water Pollution Control Dam Safety Permits NV Division of Water Resources Hazardous Materials Storage Permit NV State Fire Marshal Special Use Permit Pershing County Special Use Permit Humboldt County Golden Eagle Take Permit US Fish & Wildlife Service In addition to the principal environmental permits outlined above, the following table lists other notifications or ministerial permits that may likely be necessary to operate the Project, as well as the applicable agency. Table 1-6: Other Notifications or Ministerial Permits Notification/Permit Agency Above Ground Storage Tank Permit Nevada Bureau of Corrective Actions Agreement for Road Maintenance Humboldt and Pershing Counties Explosives Permit Bureau of Alcohol, Tobacco, Firearms, and Explosives Explosives User’s License (User’s Clearance) Bureau of Alcohol, Tobacco, Firearms, and Explosives Fire and Life Safety Nevada State Fire Marshal Hazardous Materials Permit Nevada State Fire Marshal Industrial Artificial Pond Permit Nevada Department of Wildlife Leach Pad Commencement Nevada Bureau of Mining Regulation and Reclamation Leach Pad As-Built Report Nevada Bureau of Mining Regulation and Reclamation Process Plant As-Built Report Nevada Bureau of Mining Regulation and Reclamation Dam Safety Permit Nevada Division of Water Resources Mine ID Number Mine Safety & Health Administration Mine Opening Notification Nevada Division of Minerals Mine Registry Nevada Division of Minerals Notification of Commencement of Operations Mine Safety & Health Administration Production/Dewatering Wells - Proof of Completion Nevada Division of Water Resources Radio License Federal Communications Commission RCRA Waste Mgt. ID - Mine Nevada Bureau of Sustainable Materials Management/U.S. Environmental Protection Agency Well Drilling Permit (Notice of Intent to Drill) Nevada Division of Water Resources Potable Water System Nevada Bureau of Safe Drinking Water Septic System Nevada Bureau of Water Pollution Control Hycroft Mine Project Page 13 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 1.14.3 Social Considerations Social and community impacts are considered and evaluated for the revision to the Plan Application and would be used in the NEPA process. Potentially affected Native American tribes, tribal organizations, and/or individuals are consulted during the preparation of all plan amendments to advise on the proposed projects that may affect cultural sites, resources, and traditional activities. 1.14.4 Closure and Reclamation Considerations A Tentative Plan for Permanent Closure (TPPC) for the Mine is in place and is currently being updated for future submission to the BMRR with the application to modify the WPCP (NEV0094114). In the TPPC, the proposed TMF closure approach would consist of fluid management through evaporation, covering the TMF with a geosynthetic cover and growth media, and then revegetation. The design of the process components is not sufficiently advanced to determine the closure costs. Any residual TMF drainage will be managed with evaporation cells. Surface management surety bonds currently total US$58.7 million with US$58.3 million securing financial assurance requirements for the Mine and US$0.4 million securing financial assurance requirements for the water supply well field and exploration within the Project boundary. Future increases in reclamation bonding will either be through surety bonds supported by restricted cash balances or by letters of credit issued by banks. 1.15 Capital and Operating Cost The capital cost (CAPEX) and operating cost (OPEX) estimates were developed in Q1 2026 in U.S. dollars (US$). The estimates are based on budgetary quotations, supplemented with Ausenco’s in-house database, and informed by Ausenco’s experience from similar operations in North America. 1.15.1 Capital Cost Estimate The capital cost estimate was developed in Q1 2026 to target a level of accuracy of -30% to +50%, which aligns with an Association for the Advancement of Cost Engineering International (AACE International) Class 5 level estimate. The CAPEX estimate includes the following: ● Initial capital cost to design, construct, and commission the mine, process plants, and supporting facilities and infrastructure. ● Sustaining capital to construct and commission equipment replacement and other major capital expenses expected after commercial production commences. ● Closure costs associated with reclaimation of the project site after operations have ceased. The initial, sustaining, and total costs of the project are summarized by major areas in Table 1-7. Table 1-7: Capital Cost Summary WBS Description Capital Cost (US$M) Sustaining Cost (US$M) Total Cost 1 (US$M) 1000 Mining 194 1,171 1,365 2000 Crushing 48 60 109 3000 Sulfide Process 915 776 1,692 4000 Oxide Process 16 46 63 5000 Waste Rock Storage & TMF 208 515 723 6000 Onsite Infrastructure 139 9 148 7000 Offsite Infrastructure 43 366 409 Total Direct Costs 1,563 2,944 4,507 8000 Indirects 382 27 409 9000 Provisions 448 136 584 10000 Owner’s Costs 41 - 41 Total Capital Cost 2,434 3,107 5,541 Note: 1. Totals may not match due to rounding Hycroft Mine Project Page 14 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 1.15.2 Operating Cost Estimate The operating cost estimate was developed in Q1 2026 to target a level of accuracy of -30% to +50%, which aligns with an Association for the Advancement of Cost Engineering International (AACE International) Class 5 level estimate. The OPEX estimate for the project includes expenses incurred by the mine, process plant, and administration of the operation (G&A costs). A summary of the mining, processing, and G&A operational costs by LOM total cost and unit cost (US$/ton) is in Table 1-8. Table 1-8: Operating Cost Summary Cost Area LOM Total (US$M) 1 US$/ton milled % of Total Mining 8,683 2 6.91 31.5 Process 18,245 14.52 66.1 G&A 664 0.53 2.4 Total 27,592 21.96 100 Note: 1. Totals may not match due to rounding 2. Includes 10% contingency 1.16 Economic Analysis 1.16.1 Economic Summary The results of the economic analysis discussed in this section represent forward-looking information as defined under U.S. securities law. The results depend on inputs that are subject to a number of known and unknown risks, uncertainties and other factors that may cause actual results to differ materially from those presented here. Information that is forward-looking includes: ● mineral resource estimates ● assumed commodity prices and exchange rates ● proposed mine production plan ● projected mining and process recovery rates ● assumptions as to mining dilution ● capital and operating cost estimates and working capital requirements ● assumptions as to closure costs and closure requirements ● assumptions as to environmental, permitting and social consideration and risks. Hycroft Mine Project Page 15 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Additional risks to the forward-looking information includes: ● changes to costs of production from what is assumed ● unrecognized environmental risks ● unanticipated reclamation expenses ● unexpected variations in quantity of mineralized material, grade or recovery rates ● geotechnical or hydrogeological considerations differing from what was assumed ● failure of mining methods to operate as anticipated ● failure of plant, equipment or processes to operate as anticipated ● changes to assumptions as to the availability of electrical power, and the power rates used in the operating cost estimates and financial analysis ● ability to maintain the social license to operate ● accidents, labor disputes and other risks of the mining industry ● changes to interest rates ● changes to tax rates and availability of allowances for depreciation and amortization. The economic analysis was completed assuming a 5% discount rate. The pre-tax NPV discounted at 5% is US$5,437 million; the IRR is 18.9%, and payback period is 4.3 years. On a post-tax basis, the NPV discounted at 5% is US$4,344 million, the IRR is 16.9%, and the payback period is 4.7 years. A summary of project economics is listed in Table 1-9. Readers are cautioned that the assessment is preliminary in nature and there is no certainty that the economic assessment will be realized. However, it does not include any inferred mineral resources. Hycroft Mine Project Page 16 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Table 1-9: Economic Analysis Summary Unit Value General Inputs Gold Price US$/oz 3,600 Silver Price US$/oz 48.00 Discount Rate % 5.0 LOM Production Total Mineralized Material Mined kst 1,496,134 Total Waste Mined kst 2,320,719 Average Strip Ratio w:o 1.55 Life of Mine years 50.5 Total Mill Feed Processed kst 1,046,284 Average Mill Feed Grade (Au) oz/st 0.012 Average Mill Feed Grade (Ag) oz/st 0.43 Total Leach Material Processed kst 210,010 Average Leach Feed Grade (Au) oz/st 0.005 Average Leach Feed Grade (Ag) oz/st 0.12 Total Recovered Gold koz 10,476 Total Recovered Silver koz 349,208 Average Mill Feed Gold Recovery % 82.8 Average Mill Feed Silver Recovery % 77.5 Average Leach Gold Recovery % 40.0 Average Leach Silver Recovery % 12.0 Life of Mine Payable Gold Production koz 10,424 Life of Mine Payable Silver Production koz 347,462 Life of Mine Payable Gold Equivalent Production koz 15,057 Refining, Royalties Gold Payable % 99.5 Silver Payable % 99.5 NSR Royalty % NSR 2.14 Refining Costs - Au US$/oz 5.00 Refining Costs - Ag US$/oz 0.50 LOM Operating Costs Mining Cost US$/st mined 2.28 Mining Cost US$/st processed 6.91 Processing Cost US$/st processed 14.52 G&A Cost US$/st processed 0.53 Total Operating Cost US$/st processed 21.96 Cash Costs 1 US$/oz AuEq 1,924 All-In Sustaining Cost 2 US$/oz AuEq 2,147 Capital Costs Initial Capital US$M 2,434 Sustaining Capital US$M 3,107 Closure Costs US$M 243 Financials Pre-Tax NPV (5%) US$M 5,437 Pre-Tax IRR % 18.9 Pre-Tax Payback years 4.3 Post-Tax NPV (5%) US$M 4,344 Post-Tax IRR % 16.9 Post-Tax Payback years 4.7 Notes: 1. Cash costs consist of mining costs, processing costs, mine-level G&A and refining charges and royalties 2. AISC includes cash costs plus sustaining capital and closure costs Hycroft Mine Project Page 17 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 1.16.2 Sensitivity Analysis A sensitivity analysis was conducted on the base case NPV and IRR of the project using the following variables: discount rate, head grade, recovery, total operating cost, initial capital cost, as well as silver and gold prices, which were encompassed in a single variable, metal price. As shown in Figure 1-1, the sensitivity analysis revealed that the project is most sensitive to changes in metal price, head grade, and recovery. Figure 1-1: Post-Tax Sensitivity Analysis Results Note: Metal price, head grade, and recovery series overlap on the above figure. Source: Ausenco, 2026 Hycroft Mine Project Page 18 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 1.17 Conclusions Hycroft, in conjunction with IMC, developed the Hycroft deposit block model based on 5,813 drillholes with 516,901 drill intervals amounting to 2,668,616 ft of drilling. The model was assembled by Ryan Rodney, C.P.G. of Hycroft. IMC worked with Hycroft and reviewed the final model. IMC is the qualified firm for the statement of mineral resources with John Marek, P.E., acting as the Engineer of Record. Previous metallurgical testwork programs conducted on the Hycroft sulfide deposit consisted of a series of comminution, flotation, concentrate oxidation, and cyanide leaching tests on mineralized materials, flotation tailings, and oxidized sulfide concentrates. Comminution testwork indicates that the Hycroft mineralization exhibits very high rock competency. Flotation testwork, conducted at a grind sizes of P 80 of 85 µm, under acidic conditions (pH of 4.7) using strong non-selective sulfide collectors, demonstrated improved flotation performance. Flotation residence time was identified as a key parameter, and optimized test conditions targeted a mass pull of approximately 22% to 25%, resulting in favorable Au and Ag recoveries. Metallurgical testwork conducted between 2021 and 2025 indicates that the Hycroft sulfide mineralization can be processed using a flotation and POX flowsheet. Flotation optimization resulted in improved gold and silver recoveries, and POX test results support the application of POX followed by hot cure, lime boil, and cyanide leaching for treatment of the pyrite concentrate. The MRE statement was developed using a conventional computer-based block model. Each block was evaluated to determine the net return from the following two processes: ● ROM cyanide heap leaching and Merrill-Crowe of oxide and some transition materials. ● Milling, Flotation, POX, Hot Cure, and Lime Boil followed by Cyanide Leach and Merrill-Crowe of sulfide and some transition materials. The Initial Assessment indicates that the selected development has the potential to support economic extraction of the Hycroft mineral resources based on the study adopted for mining, processing, infrastructure, capital and operating costs, and commodity prices. The economic analysis demonstrates positive project economics. However, project value remains sensitive to key factors including metal prices, metallurgical performance, capital cost estimates, and operating assumptions. Additional metallurgical testwork, engineering refinement, and economic optimization are recommended in the next study phase to reduce uncertainty and improve confidence in project outcomes. 1.18 Recommendations Recommendations cover the discipline areas of exploration and resource model refinement, mineral processing and metallurgical testing, and overall project configuration to support the evaluation at the PFS level. The total recommended budget estimate to complete the programs is $22,050,000. Hycroft Mine Project Page 19 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 2 Introduction 2.1 Introduction This technical report summary (TRS) summarizes the results of an initial assessment with an economic analysis (IA-EA) for the Mine located in northwestern Nevada. The work has been prepared at the request of Hycroft Mining Holding Corporation (Hycroft). The TRS follows the requirements and outline as described in the. US Securities and Exchange Commission Code of Federal Regulations, Subpart 229.1300 – Disclosure by Registrants Engaged in Mining operations (S-K 1300). This TRS has been completed by Ausenco Engineering South USA (Ausenco), Hycroft, Independent Mining Consultants, Inc. (IMC) and WestLand Engineering & Environmental Services (WestLand) (collectively, the Report Authors). The updated statement of mineral resources reflects information developed through 2025. This TRS supersedes all previous technical studies, including the TRS filed on EDGAR under Form 8-K on January 21, 2026. The MRE is based on information provided by Hycroft which has been checked and validated wherever possible by IMC. The MRE is based on information provided by Hycroft. IMC, an independent third party with necessary relevant experience, has checked and validated the MRE wherever possible, and is assuming responsibility for the published MRE. 2.2 Terms of Reference Some sections of this report were published previously as part of a previous technical report summary filed in January 2026 (the 2026 TRS) and are listed below in Section 2.6.2. The sections of these reports which were utilized have been reviewed by both IMC and Ausenco in sufficient detail so that the Qualified Persons (QPs) at IMC and Ausenco have assumed responsibility for this work. Hycroft staff have provided all requested information and have worked with Ausenco, IMC and Westland Engineering in an open and transparent manner throughout the Project period. All units of measurement in this report are in US customary units and currencies are expressed in United States dollars (symbol: US$ or currency: USD), unless otherwise stated. Precious metal grades are presented in units of troy ounces per short ton (oz/ton). The occasional use of non-US customary units will be clearly noted and explained in text when they occur. Tons mean short tons of 2,000 lbs, Ktons means 1,000 short tons. This TRS presents the MRE for the Hycroft Mine (the Mine), and an economic analysis based on pressure oxidation (POX) for sulfide material and Heap Leaching for oxide material. Transitional material may be processed by either process. Hycroft Mine Project Page 20 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Mineral resources are reported in accordance with SK-1300. 2.3 Qualified Persons Below is a list of the firms that acted as QPs in the preparation of this TRS: ● Ausenco Engineering USA South Inc. is responsible for sections 1.1, 1.2, 1.8, 1.11, 1.12, 1.13, 1.15, 1.16, 1.17, 1.18, 2.1-2.4.1, 2.5-2.7, 10, 14-16, 18.1-18.2.3, 18.2.4- 18.2.7, 18.2.8.2-18.3.2, 18.3.4, 18.3.5, 19, 22.1, 22.5, 22.7-22.12, 22.13.1.3, 22.13.1.5-22.13.1.7, 22.13.2.2, 22.13.2.4, 22.13.2.5, 23.1, 23.4, 23.6, 24 and 25. ● Hycroft is responsible for sections 1.3-1.7, 1.15,3-9, 12, 20, 22.2-22.4, 22.13.1.1, 22.13.1.2, 22.13.2.1, 23.1-23.3, and 24. ● Independent Mining Consultants, Inc. is responsible for sections 1.9, 1.10, 1.15, 1.18, 2.4.2, 11, 13, 18.2.3, 18.2.8.1, 18.3.1, 18.3.3, 22.6, 22.13.1.4, 22.13.2.3, 23.1, 23.5 and 24. ● WestLand Engineering & Environmental Services, Inc., is responsible for Section 1.14, 17 and 24. 2.4 Site Visits and Scope of Personal Inspection 2.4.1 Site inspection for Jonathan Cooper Ausenco’s QP, Jonathan Cooper, P.Eng., completed a site visit of the Hycroft property from April 8 to 11, 2024 to inspect the existing infrastructure. 2.4.2 Site inspection for John Marek IMC’s QP, John Marek, P.E., completed a site visit on August 5, 2021, to review the existing core and logs. 2.5 Effective Dates The overall effective date of this report is May 14, 2026. 2.6 Information Sources and References 2.6.1 General The authors sourced information from documents listed in the References section of this report (Section 24). The reports and documents listed in Section 2.6.2 and Section 25 of this Report were also used to support preparation of the TRS. Hycroft Mine Project Page 21 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 2.6.2 Previous Technical Reports Hycroft previously filed the following technical reports: ● Hycroft Technical Report Summary and Initial Assessment, Nevada, USA. Prepared by Ausenco Engineering South USA Inc for Hycroft Mining Holding Corporation. Effective date: January 21, 2026. ● Initial Assessment Technical Report Summary; Humboldt and Pershing Counties. Prepared by Ausenco Engineering USA South Inc for Hycroft Mining Holding Corporation. Effective date: March 27, 2023. ● Technical Report Summary of Initial Assessment on the Hycroft Mine, Nevada, United States of America. Prepared by Ausenco Engineering USA South Inc for Hycroft Mining Holding Corporation, Effective date: February 18, 2022. ● Hycroft Project Technical Report Summary: Heap Leaching Feasibility Study, Winnemucca, Nevada, USA. Prepared by M3 Engineering & Technology Corp for Hycroft Mining Corporation. Effective date: July 31, 2019. Hycroft completed the following technical report in accordance Canada’s National Instrument 43-101 Standards of Disclosure for Mineral Projects and which are available on the SEDAR website (www.SEDARplus.ca) ● Hycroft Project NI 43-101 Technical Report: Mill Expansion Feasibility Study, Winnemucca, Nevada, USA. Prepared by M3 Engineering & Technology Corp. for Allied Nevada Gold Corp. Effective date: November 03, 2014. 2.7 Currency, Units, Abbreviations and Definitions All units of measurement in this report are US customary, and all currencies are expressed in US dollars (symbol: US$; currency: USD) unless otherwise stated. Contained gold metal is expressed as troy ounces (oz), where 1 oz = 31.1035 g. All material tons are expressed as dry tons unless stated otherwise. A list of abbreviations and acronyms is provided in Table 2-1, and units of measurement are listed in Table 2-2. Table 2-1: Abbreviations and Acronyms Abbreviation Description AAL American Assay Laboratories AAO atmospheric alkaline oxidation AAS atomic absorption spectroscopy AES atomic emission spectrometry Allied Nevada Allied Nevada Gold Corp. AR aqua regia Ag Silver ALS Auld Lang Syne formation Au Gold Ausenco Ausenco Engineering USA South Inc. Az Azimuth BLM Bureau of Land Management BWi bond ball mill work index CCD counter-current decantation Hycroft Mine Project Page 22 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Abbreviation Description CNI Call & Nicholas, Inc. CWi bond crusher work index DDH diamond drill hole DSHA deterministic seismic hazard assessment EA Environmental Assessment EDGAR Electronic Data Gathering, Analysis, and Retrieval FA fire assay FPCP Final Permanent Closure Plan G&A general and administration HLF Heap leach facility Hycroft Hycroft Mining Holding Corporation IA initial assessment ICP inductively coupled plasma ID2 inverse distance squared ID3 inverse distance cubed IMC Independent Mining Consultants, Inc. IA-EA Initial assessment with economic analysis IP induced polarization ISO International Organization for Standardization LECO Laboratory Equipment Corporation LOM life of mine LWIR Longwave Infrared LTI lost time incident M3 M3 Engineering and Technology Corp MRE mineral resource estimate MS mass spectrometry MWWAI Michael W. West and Associates Inc. NDEP Nevada Division of Environmental Protection NDOW Nevada Department of Wildlife NDWR Nevada Division of Water Resources NEPA National Environmental Policy Act NN nearest neighbor NSR net smelter return OES optical emission spectrometry POX pressure oxidation QA/QC quality assurance/quality control QP qualified person (as defined in National Instrument 43-101) RC reverse circulation drilling Hycroft Mine Project Page 23 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Abbreviation Description ROM run-of-mine RPEE reasonable prospects for economic extraction RQD rock quality designation SD standard deviation SEC Securities and Exchange Commission SHLF South Heap Leach Facility S-K 1300 US Securities and Exchange Commission Ruling S-K Subpart 1300 SRK SRK Consulting (US) Inc. SS sulfide sulfur SWIR Shortwave Infrared the Mine Hycroft Mine TMF tailings management facility TRIFR Total Recordable Incident Frequency Rate TRS technical report summary TSG Tertiary Sulfur Group USGS United States Geological Survey USFWS US Fish and Wildlife Service Westland WestLand Engineering & Environmental Services, Inc. WSP WSP Global Inc. Table 2-2: Units of Measurement Unit Description µm micrometer Ac acre Asl above sea level Axb hardness of ore in term of impact breakage, unitless B billion Bgs below ground surface Bton billion short tons °C Celsius Cfs cubic feet per second D day °F fahrenheit ft feet ft/a feet per year GWh/a gigawatt-hours per year Hycroft Mine Project Page 24 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Unit Description g gram (unit of weight) gal gallon gal/a gallons per year gal/min gallons per minute g/ton, gm/ton grams per short ton Hp horsepower hr hour in inch in/a inches per year kg kilogram km kilometer Km 2 Square kilometer kt kilotonne (1,000 metric tonnes) ktons kilo short tons kV kilovolt kWh/ton kilowatt-hours per ton lb pound M million masl Meters above sea level mi mile mi 2 square mile mm millimeters mph miles per hour Mt million tonnes Mtons million short tons Mtons/a million short tons per year min. minute Moz million troy ounces MW megawatt oz troy ounce oz/ton troy ounces per short ton pcf pounds per cubic foot ppm parts per million ppt parts per trillion psig pressure per square inch shifts/a shifts per year t metric tonne (1,000 kg) t/d tonnes per day ton short ton (2,000 pounds) ton/a short tons per year ton/d short tons per day tn short ton TSS total suspended solids units/a units per year US$, USD United States dollars (symbol; currency) US$/a United States dollars per year US$/ton United States dollars per short ton wt/wt weight percent % percent Hycroft Mine Project Page 25 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 3 Property Description 3.1 Introduction The Mine is an existing gold and silver operation located 54 miles west of Winnemucca in Humboldt County and Pershing County, Nevada, as shown in Figure 3-1. The Site is accessible via Nevada State Route 49 (Jungo Road), an all-weather, unpaved road that is maintained by Humboldt County and Hycroft. A major east–west railway runs immediately adjacent to the property. The Mine property straddles Townships 34, 35, 35½ and 36 north and Ranges 28, 29 and 30 east (MDB&M) with an approximate latitude 40°52’ north and longitude 118°41’ west. The mine is situated on the western flank of the Kamma Mountains on the eastern edge of the Black Rock Desert. The Mine property was consolidated through multiple transactions over several years and is described below. Some unpatented mining claims overlap other Hycroft patented and unpatented mining claims to ensure there are no fractional claim gaps. Existing facilities on site include two administration buildings, a mobile maintenance shop, a light vehicle maintenance shop, a warehouse, an assay laboratory, three heap leach pads – Crofoot, North, and Brimstone, primary, secondary and tertiary crushing systems, two Merrill-Crowe process plants and a refinery. It is considered that existing components of the mine property would be utilized for future development. The Mine operates under permit authorization from the Bureau of Land Management (BLM), Nevada Division of Environmental Protection (NDEP), Nevada Department of Wildlife (NDOW), Nevada Division of Water Resources (NDWR) and County agencies. As of the effective date of this report, Hycroft has approximately 52 employees. 3.2 Property and Title in Jurisdiction The Mine is owned and managed by Hycroft Resources and Development, LLC, a wholly owned subsidiary of Hycroft Mining Holding Corporation. Hycroft Mine Project Page 26 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Figure 3-1: Hycroft Mine Location Map Source: Nevada Bureau of Mines, 2023 3.3 Project Ownership The property containing the Mine property consists of 25 private parcels with patented claims totaling approximately 1,855 acres, along with 3,249 unpatented mining claims covering approximately 62,298 acres, for a combined total of approximately 64,000 acres. Some mining claims overlap other Hycroft Mining claims to ensure there are no fractional gaps in mining claim coverage. Hycroft Mine Project Page 27 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 There are 30 unpatented placer claims, and 3,219 unpatented lode claims are in Humboldt County and Pershing County, Nevada as follows: ● T36N, R29E, Sections: 28, 32, 33 ● T36N, R30E, Sections: 19, 28-34 ● T35 1/2N, R29E, Sections: 25, 26, 35, 36 ● T35N, R29E, Sections: 1-3, 10-15, 21-28, 31-36 ● T35N, R30E, Sections: 2-10, 15-23, 25-36 ● T34N, R28E, Sections: 1, 2, 11, 12, 13 ● T34N, R29E, Sections: 1-28, 33 ● T34N, R30E, Sections: 2-11, 17-20, 29, 30 The 25 private patented claims are located in Humboldt County and Pershing County, Nevada as follows: ● T35N, R29E, Sections: 24, 25, 35, 36 ● T35N, R30E, Sections: 19, 30, 31 ● T34N, R29E, Sections: 1, 2 The mining claim package is depicted in Figure 3-2. Individual mining claims for each township range and section are presented in Appendix A – Patented Claims and Appendix B – Unpatented Claims. The project centroid is defined in the following mine grid coordinates: 51500 N and 20500 E. This point is located central to all mine facilities. The project centroid shall be used to reference all other locations within one mile. Much of the project area is located on un-surveyed public and private land for which the sections, ranges, and townships listed above have been interpolated. Patented claims have been surveyed (Wilson, 2008; Prenn, 2006). The following is a list of land acquisitions/transactions made over the years which constitute the entire Hycroft land claim package and has been assembled through a series of transactions. The Crofoot property and approximately 3,500 acres of claims were acquired by Vista in 1985. The Crofoot property, originally held under lease, is owned by Hycroft. The Crofoot royalty was terminated January 7, 2026. The Lewis property and approximately 8,700 acres of claims were acquired by Vista in early 1987. In 2006, approximately 13,100 acres of additional claims were staked by Vista. These claims are contiguous or proximate to the original Crofoot and Lewis claims. From 2007 through 2015, Hycroft staked additional lode mining claims contiguous to existing Hycroft claims that cover approximately 37,373 acres. Some of these lode claims overlap existing placer claims. Hycroft Mine Project Page 28 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Payment of annual claim maintenance and holding fees to the BLM and Humboldt and Pershing Counties and payment of annual real property taxes for patented claims in Humboldt and Pershing Counties are made every third quarter (Q3). Payments are current through the 2025–2026 claim years, with US$724,095 paid for 2025–2026. Payment of annual claim maintenance and holding fees and real property taxes are required to continue to hold the Hycroft property in good standing from. BLM annual maintenance fees for claims are due not later than September 1 of each year. Humboldt and Pershing County State annual holding fees beginning September 1 of each year are due no later than November 1 of each year. Annual real property taxes for patented claims in Humboldt and Pershing Counties are due August 31 of the following year. Hycroft controls all surface and mineral rights within the Hycroft MRE area. No further land acquisition is required for the operation of the mine and contemplated processing facilities. Figure 3-3 shows the property layout including site facilities, mine workings, leach pads and waste dumps. 3.4 Property Agreements Table 3-1 shows the royalty amount and other annual land holding costs. Table 3-1: Hycroft Annual Land Holding Costs Month Due Lessor Type Amount Monthly Sprott Royalty 1 Net Smelter Return Royalty 1.5% NSR August-October US BLM, Humboldt & Pershing Counties Claim Fees US$724,095 Note: 1. The Sprott royalty is equal to 1.5% of Net Smelter Returns (NSR) free and clear of withholding taxes or similar taxes. Hycroft Mine Project Page 29 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Figure 3-2: Claim Map Source: Hycroft, 2026 Hycroft Mine Project Page 30 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Figure 3-3: Current Property and Facilities Layout (2025) Source: Hycroft, 2026 Hycroft Mine Project Page 31 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 3.5 Surface Rights Hycroft controls all surface and mineral rights within the Hycroft MRE area. No further land acquisition is required for the operation of the mine and contemplated processing facilities. 3.6 Water Rights Hycroft controls 16 separate water-right permits administered by the NDWR. These permits are held in ownership either by Hycroft, or by other private parties and leased to Hycroft. Water resources to support the Mine are controlled under 14 permits in the Black Rock Desert Basin totaling 20,414.9 acre-ft/a (6.65 billion gal/a). Two of these water permits are outside the Black Rock Desert Hydrographic Basin and used to support construction maintenance of Jungo Road with Humboldt County. 3.7 Liabilities and Encumbrances The consolidated financial statements of Hycroft Mining Holding Corporation set forth its material liabilities as of the date of such financial statements. The assets of Hycroft Mining Holding Corporation and its subsidiaries (collectively, the Company) are subject to encumbrances and obligations, including encumbrances and obligations under and associated with the Sprott Royalty Agreement dated May 29, 2020, by and between the Company and Sprott Private Resource Lending II (Co) Inc. 3.8 Environmental Considerations Gold production began on the property in 1983 and continued through 1985 when Standard Slag opened the Lewis Mine. There was a brief gap in mining until Hycroft acquired the Lewis Mine and the Crofoot claims and recommenced mining in 1988. Mining operations continued until 1998 when mining was placed on standby due to low metal prices. Process operations continued until 2004 when the property was placed on care and maintenance. Efforts began in 2003 to update the Reclamation Plan, associated cost estimate, and related amount of surety bond posted with the BLM. During the years 2011 and 2012, Hycroft increased collateral account balances to support additional surety bonds for the benefit of the BLM. These additional surety bonds allowed Hycroft to continue operations at the Mine and to expand exploration activities outside of the Mine. In 2011, Hycroft received a reimbursement of US$0.5 million related to reclamation costs that had been paid out. In January 2014, the BLM approved an updated reclamation cost estimate allowing for the phased bonding of the expansion activities. The required bond amount was lowered from US$63 million to US$58.3 million. Hycroft has Surface Management Surety Bonds with insurance companies that meet the financial requirements of the BLM to comply with the total requirement of US$58.3 million as detailed in the September 2013 reclamation cost estimate that requested the phasing of the mill expansion activities. Additionally, Hycroft has posted a bond with the BLM in the amount of US$0.6 million for the adjacent water supply well field, well field monitoring and exploration within the project boundary. Hycroft has US$14.4 million in restricted cash for collateral for these bonds. Hycroft Mine Project Page 32 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 The Hycroft area has been surveyed for surface water resources, including Waters of the United States, biological resources, cultural resources, and groundwater resources. The Golden Eagle (Aquila chrysaetos) is known to occur adjacent to the Hycroft Project. Hycroft is working with the BLM and the US Fish and Wildlife Service (USFWS) in the management of this species. 3.9 Safety Considerations The operation of the Mine is subject to regulation by the Federal Mine Safety and Health Administration (MSHA) under the Federal Mine Safety and Health Act of 1977 (the Mine Act). MSHA inspects the Mine on a regular basis and issues various citations and orders when it believes a violation has occurred under the Mine Act. In years ending 2024 and 2025, after multiple inspections, MSHA has issued no (0) citations and no (0) “Significant and Substantial” Violations under section 104(a) of the Mine Act. There have been no fines including citations and orders issued to contractors for the year ending May 1, 2026. Hycroft mandated mine safety and health programs include employee and contractor training, risk management, workplace inspection, emergency response, accident investigation, and program auditing with a goal to have zero workplace injuries and occupational illness. In 2023, Hycroft implemented multifunctional workplace inspections and monthly employee engagement sessions. As a result, Hycroft has now operated for three consecutive years at a 0.0 Total Recordable Incident Frequency Rate (TRIFR) and achieved over 1.4 million hours without a Lost Time Incident (LTI). The Mine’s TRIFR per 200,000 man-hours worked including contractors was 0.0 on May 1, 2026. 3.10 Permitting Considerations The Mine operates under permit authorizations from the BLM, NDEP, NDOW, and NDWR. All operating and environmental permits, approved by the BLM, NDEP, NDOW and NDWR, are in good standing for mining operations. Table 3-2 summarizes the operating permits while Table 3-3 shows the miscellaneous permits for the property. Table 3-2: Hycroft Operating Permits Operating Permits Issuing Agency Number Status Plan of Operations BLM NVN-064641 Current Eagle Take Permit USFWS MB90099B-0 Current Mercury Operating Permit to Construct NDEP - BAPC AP1041-2255 Current Class I Air Quality Operating Permit to Construct NDEP - BAPC AP1041-2974 Incorporated into the Class II AQOP Class I Air Quality Operating Permit to Construct NDEP - BAPC AP1041-3344 Incorporated into the Class II AQOP Class I Air Quality Operating Permit NDEP - BAPC AP1041-2964 Current Permit to Operate a Public Water System NDEP - BSDW HU-0864-12NTNC Current Class II Air Quality Permit NDEP - BAPC AP1041-0334.05 Current Water Pollution Control Permit-Crofoot Project NDEP - BMRR NEV60013 Current Water Pollution Control Permit-Brimstone Project NDEP - BMRR NEV94114 Current (Application Shield) Bioremediation Facility Permit NDEP - BMRR GNV041995-HGP15 Superseded by Water Pollution Control Permit Reclamation Permit NDEP - BMRR 134 In Renewal Mining General Stormwater Pollution Prevention Permit NDEP - BWPC R300000: MSW-177 Current Class III Landfill Waiver NDEP - BSMM SWW-346 Current Artificial Pond Permit (Brimstone Process Ponds) NDOW HU019 – S503626 Current Artificial Pond Permit (Crofoot Process Ponds) NDOW HU009 – 39469 Current Artificial Pond Permit (North Process Ponds) NDOW HU022-39468 Current Artificial Pond Permit (Stage 1 Ponds) NDOW HU022-40377 Current General Onsite Sewage Disposal System NDEP - BWPC GNEVOSDS09 Current Dam Safety Permit (Crofoot Process Ponds) NDWR J-273 Current Dam Safety Permit (Brimstone Leach Event Pond) NDWR J-683 Current Dam Safety Permit (North Leach Event Ponds) NDWR J-687 Current Dam Safety Permit (Stage 1 Event Ponds) NDWR Pending Hazardous Materials Storage Permit NV State Fire Marshal 8250 Current Special Use Permit Pershing County SUP 12-04 Current Special Use Permit Humboldt County UH-12-04 Current Hycroft Mine Project Page 33 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 Table 3-3: Hycroft Miscellaneous Permits Operating Permits Issuing Agency Number Status Microwave Repeater; Sec. 29, 30 BLM NVN46292 Current ROW Wells/Pipeline/Power Line; Sec. 3 BLM NVN46564 Current ROW 2 Wells/Pipeline/Power Line BLM NVN46959 Current ROW Road and Waterline (Old Man camp to Lewis) BLM NVN39119 Current ROW Crofoot pipeline BLM NVN44999 Current ROW 24 kV Aerial Powerline, Lewis/Floka BLM NVN54893 Current Kamma Peak Station FCC WNER344 Current Sulfur Mine Station FCC WNER345 Current Winnemucca Mountain Station FCC WNER346 Current Base Station and 45 Mobile Units FCC WNKK336 Current Operating and miscellaneous permits that require annual maintenance fees are shown in Table 3-4. Fixed annual fees are required for storm water and public drinking water system permits based upon the current Nevada regulatory structure. The other annual fees are based on annual mining production, quantities and types of chemicals stored on site, existing and permitted surface disturbance, and the level of actual and permitted air emissions. The variable fees shown are based upon the 2025 operational conditions. Table 3-4: Hycroft Miscellaneous Permits Permit and Fee Description Annual Amount (US$) Air Quality Operating Permit AP1041-0334.05 Fees are incorporated into title V permit. Air Quality Operating Permit AP1041-2255 $16,958 Air Quality Operating Permit AP1041-2964 $47,448 Reclamation Permit $37,811 Nevada Radioactive Material License $2,000 Stormwater Permit $1,000 Artificial Pond Permit $31,625 Water Pollution Control Permit NEV94114 $66,000 Water Pollution Control Permit NEV60013 $60,000 State Fire Marshal $210 Public Drinking Water System $391 Septic System Permits $750 Toxic Release Inventory Annual Fee $5,500 Nevada LP-Gas License $795 Total $270,488 Hycroft currently holds six Right-of-Way (ROW) leases with two exploration notices with the BLM, as described in Table 3-5 along with fees and renewals. Table 3-5: Right-of-Way Payment and Renewal Schedule ROW Number Annual Payment Amount (estimated) Payment Date Expiration Date NVN46292 $125 01/01/2025 12/31/2048 NVN46564 $100 01/01/2025 12/31/2046 NVN46959 $610 01/01/2025 In Renewal NVN39119 $427 01/01/2025 In Renewal NVN44999 $279 01/01/2025 In Renewal NVN54893 $200 01/01/2025 In Renewal Hycroft Mine Project Page 34 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 3.10.1 Hycroft Expansion Permitting and Timelines Hycroft submitted a Plan of Operations for an expansion of its heap leach facilities, open pits and waste rock facilities to the BLM in April 2010. A major modification to the State Water Pollution Control Permit was submitted in 2011 for the process components that included engineering design reports from Golder Associates Inc. (Golder). The permit modification was issued in August 2012. An amended Plan of Operations that included a rail spur, open pit expansion and processing complex was submitted to the BLM in August 2012. The BLM determined that an Environmental Assessment (EA) was required, deemed the Plan of Operations complete, and initiated public scoping in December 2012. In March 2013, NV Energy submitted a ROW application for the power line associated with the Hycroft Mill. The BLM determined that this action should be analyzed with the Hycroft EA. Approval was received in December 2014. The permits required to construct and operate the crushing system and to begin mill construction were received in 2012. The air quality permit for operation of a mill was submitted in December 2012, and issuance was received in late 2013. The Plan of Operations for a rail spur, open pit expansion and processing complex, that included a tailings management facility (TMF) and expanded Heap Leach Facility (HLF), was completed in December 2014, with the BLM issuance of the Record of Decision authorizing the proposed action received in January 2015. A major modification to the State Water Pollution Control Permit was submitted in 2011 for the process components that included engineering design reports from Golder. The permit modification was issued in August 2012. All other permits required for the heap leach expansion have been received. A Plan of Operations for an alternate TMF, mining below the water table and expanded facilities was submitted to the BLM in April 2014. The BLM determined that a Supplemental Environmental Impact Statement (SEIS) was required. In October 2019, the BLM issued a record of decision on the SEIS permitting the new TMF location, expanded facilities and deeper pit depths. In December 2010, Hycroft submitted a minor modification to the NDEP which proposed increasing the permitted processing rate from 10 to 12 Mtons/a. This modification was approved in February 2011. In May 2011, Hycroft proposed a major modification to build a new heap leach pad on the site of the closed Lewis pad and to increase the processing rate to 30 Mtons/a. This modification was approved by the NDEP in December 2011. In January of 2012, Hycroft submitted another major modification to construct a heap leach facility on the south extent of the property. The facility was referred to as the South Heap Leach Facility (SHLF). Around the same time, Hycroft submitted a modification proposing to add both a north and south processing area, increasing the Brimstone and Lewis heap leach pads permitted height to 400 ft, and increasing the permitted processing rate to 36 Mtons/a of ore. Both modifications were approved by the NDEP in September 2012. Later, in December 2012, Hycroft submitted a minor modification proposing to add a Merrill-Crowe facility at the North Process Area. NDEP approved this modification in May 2013. In March of 2013, Hycroft submitted another modification to construct a combined heap leach and tailings storage facility (TMF), referred to as the South Processing Complex (SPC), in the same location as the previously permitted SHLF. The SPC uses the new SHLF, constructed in a horseshoe shape, to provide the embankment for the Southwest TMF located in the central portion of the new SHLF. Also, as part of this modification, Hycroft proposed the construction of a mill and related facilities for processing high-grade ore at an approximate throughput of 65,000 tons per day (ton/d) during Phase 1 to a final phase capacity of 132,000 ton/d. Tailings were proposed to be pumped to the TMF at the SPC. These 2013 major modifications were approved by NDEP in August 2017. Hycroft Mine Project Page 35 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 In September 2014, Hycroft submitted a minor modification to expand the Brimstone-North HLF to the southeast by approximately 80 acres including an additional Event Pond at the existing North Area Merrill-Crowe facility. NDEP approved these minor modifications in March 2015. In April 2019, Hycroft submitted a major modification to construct a new heap leach facility named Hycroft Heap Leach Facility Stage 1 (Stage 1 HLF) north of the North Processing Facility. The Stage 1 HLF will have a storage volume of 29 Mtons and is the first stage of the larger facility (Hycroft HLF) with a storage capacity of 550 Mtons. The ultimate footprint of the Hycroft HLF will cover approximately 925 acres, with the Stage 1 footprint covering approximately 390 acres that includes ponds, channels, and roads. Of this area, 234 acres will be lined with geomembrane along with the HLF pad comprising 204 of these acres. Pregnant solution collected from the pad will be pumped to the existing North Merrill-Crowe process facility for precious metals recovery. The barren solution from the North Merrill-Crowe facility will then be returned to the top of each lift and applied over a designated cell area using a drip and sprinkler system. The major modification was approved by NDEP in July 2020. Currently, Hycroft has all permits required to restart the Mine and recently received the Federal Record of Decision for the Phase II Environmental Impact Statement supporting the life of mine (LOM) pit development. Received Record of Decision from BLM for Environmental Impact Statement (EIS) (10-22-19): ● Current operating plan is fully permitted ● Existing operating permits will be amended as new facilities/infrastructure are required ● EIS allows flexibility: ○ Expanded pits ○ Construction of a TMF to the south of the property, if needed ● Phase 1 of the new leach pad is permitted ● Phase 1A of the new leach pad has completed earthwork and high-density polyethylene (HDPE) liner installation. A media cover has been added to protect the porous multimedia protective layer. Collection ponds are in place. Electrical switch gear, instrumentation, and pumps are in storage and will be added during construction restart. No mineralized ore has been added to the pad. Phase 1B of the new leach pad and future phases will be planned for construction from cash flows when needed. Any future expansion activities recommended in this TRS will require multiple federal, state and local permits. The USFWS will require modification to the Golden Eagle Take Permit for the NE TMF and extensions of the South (Vortex) Dump. Hycroft Mine Project Page 36 S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis May 14, 2026 3.10.2 Crofoot Heap Leach Facility Closure In 2023, NDEP asked Hycroft to update the 2017 Final Permanent Closure Plan (FPPC). Hycroft complied with this request and a new FPPC was submitted. The updated plan includes schedule of compliance (SOC) items and incorporates current regulations. There are six items in this plan. SOC Items 1 (Stormwater Controls), 2 (Heap Leach Drain-Down Channel), 3 (Update Monitoring Plan), 4 (Water Quality Evaluation Report), SOC Item 5 (updating FPCP), and 6 (Investigation of trend for Wells SP-23, SP-24, and SP-25). NDEP has accepted and approved SOC Items 2 (Heap Leach Drain-Down Channel) and Item 3 (Update Monitoring Plan). The other items are still under review. Construction of a drain-down collection system was completed in 2012. In 2024 and 2025, Hycroft completed steps to regrade the pad in preparation for closure. Hycroft will continue to re-contour the pad, as necessary for surface water management; apply medium, where required; and reseed the pad to complete the closure process. Hycroft is working in conjunction with NDEP, who will issue the final closure approval letter once these activities are reviewed and accepted. 3.11 Social License Considerations Social and community impacts have been considered and evaluated in the National Environmental Policy Act (NEPA) process. Potentially affected Native American tribes, tribal organizations, and/or individuals are consulted during the preparation of all plan amendments to advise on proposed projects that may influence cultural sites, resources, and traditional activities. Potential community impacts on the existing population and demographics, income, employment, economy, public finance, housing, community facilities, and community services are also evaluated during NEPA review processes. There are currently no social or community issues that materially impact Hycroft’s ability to extract mineral resources. 3.12 Project Risks and Uncertainties Timely filings and payments are required to maintain title and rights to claims, water rights and permits. Hycroft maintains pr… |
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EX-99.1 · ex99-1.htm EX-99.1 6 ex99-1.htm EX-99.1 Exhibit 99.1 Hycroft Delivers $10 Billion NPV from Technical Report at Spot Prices While Advancing High-Grade Brimstone and Vortex Silver Discoveries WINNEMUCCA, NV, June 2, 2026 – Hycroft Mining Holding Corporation (Nasdaq: HYMC) (“Hycroft” or “the Company”), is pleased to announce the results from its S-K 1300 Technical Report Summary and Initial Assessment (the “TRS”), which outlines the economics and mine plan for a milling operation utilizing conventional pressure oxidation (“POX”) and heap leach processing at the Hycroft Mine in Nevada, USA. All amounts are in US dollars, and all figures are presented in US customary units. The TRS demonstrates that Hycroft hosts a large-scale, long-life precious metals project with compelling economics and strong leverage to rising gold and silver prices, reinforcing its position as a multi-generational, world-class asset in a Tier-1 jurisdiction. The TRS is being filed concurrently with the SEC on EDGAR and is available on the Company’s website . Basis of the Technical Report ● Base case commodity prices: $3,600 per ounce for gold and $48.00 per ounce for silver ● Spot prices (1) : $4,569 per ounce of gold and $77.94 per ounce of silver ● Mine plan based on the 2026 Mineral Resource Estimate (16.4 million ounces of gold and 562.6 million ounces of silver Measured and Indicated) ● Inferred mineral resources of 5.0 million ounces of gold and 132.8 million ounces of silver are not included in the mine plan and represent an upside to the TRS economics ● Drill results from the 2025-2026 exploration program are not included in the mine plan and represents further upside Highlights: ● Robust Economics Demonstrate the Scale and Value of the Hycroft Mine: ○ Base Case Net Present Value at 5% (“NPV 5 ”) of $5.4 billion (pre-tax) and $4.3 billion (post-tax) ○ Internal Rate of Return (“IRR”) of 18.9% (pre-tax) and 16.9% (post-tax) ○ NPV 5 at spot prices of $10.0 billion and IRR of 30.1% (post-tax) ○ Post-Tax Payback: 4.7 years at Base case prices and 2.9 years at spot prices ○ Gross revenues: $54.2 billion at Base case prices ● Significant Leverage to Commodity Prices: ○ For every $100 increase in gold price per ounce, the post-tax NPV 5 increases by $300 million ○ For every $5.00 increase in silver price per ounce, the post-tax NPV 5 increases by $460 million ● Multi-Decade Production Profile at Meaningful Scale: ○ 51 year mine life ○ Average annual production: ■ 204,000 ounces of gold ■ 6.8 million ounces of silver ■ 295,000 ounces gold equivalent (2) (“AuEq”) (1) Spot prices for gold and silver as of May 25, 2026 (2) Silver is converted to AuEq using the ratio of $48.00/oz Ag to $3,600/oz Au 1 ○ First 10 years deliver enhanced production averaging more than 330,000 ounces AuEq ○ Life of Mine (“LOM”) production: ■ 10.4 million ounces of gold ■ 347.5 million ounces of silver ■ 15.1 million ounces AuEq ● Conventional Plant Design, Layout and Processing: ○ Proven POX processing technology ○ Existing infrastructure on-site allows for reduced capital expenditures ○ Plant designed to process 57,100 tons per day of mineralized material ○ LOM average cash cost (3) of $1,924 per ounce AuEq and all-in sustaining cost (“AISC”) (4) of $2,147 per ounce AuEq ○ Initial capital costs: $2.4 billion and LOM sustaining capital costs of $3.1 billion Significant Upside and Optionality Remains: ● Potential mine plan upside opportunities include: ○ Further drilling to reclassify waste and inferred gold and silver resources to measured and indicated resources enabling integration into future mine plans ○ Accelerated access to high-grade zones at Brimstone and Vortex early in the mine life through targeted optimization ○ Combining underground mine option alongside the open pit benefiting from large scale production and bringing high-grade ounces forward earlier in the mine life ○ New oxide targets have been identified for potential heap leach early in the mine life ○ Extending mine life or expanding production by processing stockpiled low-grade mill feed material within the current mine plan but not included in the economic analysis ● Current mineral resource comprises less than 15% of the +64,000-acre land position as the Hycroft system remains open in all directions and at depth for future growth ○ New exploration targets identified for potential resource expansion opportunities including high-grade and oxide targets ○ Significant drilling campaign underway with two core drill rigs at Brimstone and Vortex, increasing to four core drill rigs over the next quarter to expand and define these two high-grade systems that currently remain open in all directions and at depth ● Roasting test work is pending as an alternative processing option which could potentially enhance project economics including potentially adding a meaningful third revenue stream from the by-product production and sale of sulfuric acid, a strategically important industrial chemical Diane R. Garrett, Executive Chairman and Chief Executive Officer, commented: “This Technical Study confirms the scale, quality, and long-term potential of the Hycroft Mine. The project delivers strong economics and significant leverage to rising gold and silver prices, reinforcing Hycroft’s position as one of the sector’s most compelling large-scale development opportunities, located in a Tier 1 jurisdiction. (3) Cash costs consist of mining costs, processing costs, mine-level G&A, and refining charges and royalties (4) All-in sustaining costs includes cash costs plus sustaining capital and closure costs 2 Importantly, we believe the most meaningful value creation opportunity remains ahead of us. By advancing the high-grade Brimstone and Vortex silver systems, we see a clear path to further improving project economics and unlocking additional value. The Hycroft land package remains a highly prospective environment, and we believe we are only at the beginning of demonstrating its true potential.” For additional context on the TRS, please visit our pre-recorded event with 6ix. About Hycroft Mining Holding Corporation Hycroft Mining Holding Corporation is a US-based gold and silver company exploring and developing the Hycroft Mine, among the world’s largest precious metals deposits, located in northern Nevada, a Tier-1 mining jurisdiction. Hycroft is engaged in a robust exploration drill program (2025-2026 exploration drill program) to expand and advance the two new high-grade silver systems – Brimstone and Vortex. These discoveries represent a significant value driver for the Hycroft Mine. For further information, please contact: E: info@hycroftmining.com Investor Relations Phone: 775-245-0564 www.hycroftmining.com Media: Tavistock, Jos Simson / Emily Moss E: hycroft@tavistock.co.uk Phone: +44 207 920 3150 Cautionary Statements Regarding the Initial Assessment and Mineral Resources The Initial Assessment is a preliminary technical and economic study that indicates the economic potential of the mineralization to support the disclosure of mineral resources at the Hycroft Mine. The Initial Assessment, however, does not represent a feasibility study or a pre-feasibility and does not demonstrate economic viability nor does it support a development decision, for which additional project planning and design are needed. As a result, Hycroft plans to continue to estimate its resources at the Hycroft Mine and further develop the project economics. As used in this news release, the terms “pre-feasibility study,” “feasibility study,” “initial assessment,” “mineral reserve,” “mineral resource,” “measured mineral resource,” “indicated mineral resource” and “inferred mineral resource”, as applicable, and other terms used herein are defined and used in accordance with S-K 1300. The Initial Assessment also does not include the conversion of mineral resources to mineral reserves. Under subpart 1300 of Regulation S-K, mineral resources may not be classified as “mineral reserves” unless the determination has been made by a QP that the mineral resources can be the basis of an economically viable project. Investors are specifically cautioned not to assume that any part or all of the mineral deposits (including any mineral resources) in these categories will ever be converted into mineral reserves, as defined by the SEC. In addition, estimates of inferred mineral resources have too high of a degree of uncertainty as to their existence and may not be converted to a mineral reserve. Therefore, investors are cautioned not to assume that all or any part of an inferred mineral resource exists, that it can be the basis of an economically viable project, or that it will ever be upgraded to a higher category. Likewise, investors are cautioned not to assume that all or any part of measured or indicated mineral resources will ever be converted to mineral reserves. Cautionary Note Regarding Forward-Looking Statements Certain information set forth in this news release contains “forward-looking statements” and “forward-looking information” within the meaning of applicable United States securities law (referred to herein as forward-looking statements). Forward-looking statements are often identified by the use of words such as “may”, “will”, “could”, “would”, “anticipate”, “believe”, “expect”, “intend”, “potential”, “estimate”, “budget”, “scheduled”, “plans”, “planned”, “forecasts”, “goals” and similar expressions. Except for statements of historical fact, certain information contained herein constitutes forward-looking statements which includes, but is not limited to, statements with respect to: the future financial or operating performance of the Company, the Hycroft Mine and its mineral properties; results from work performed to date; the estimation of mineral resources and reserves; the realization of mineral resource and reserve estimates; the development, operational and economic results of the PEA for the Hycroft Mine, including cash flows, revenue potential, development, expenditures, and timing thereof, extraction rates, LOM projections and cost estimates; timing of completion of a technical report summarizing the results of the PEA; magnitude or quality of mineral deposits; anticipated advancement of the Project mine plan; exploration expenditures, costs and timing of the development of new deposits; costs and timing of future exploration; permitting; construction and optimization planning; estimates of metallurgical recovery rates; anticipated advancement of the Hycroft Mine, future prospects and prospective inclusion of mineral resources in future mining activities; requirements for additional capital; the future price of metals; government regulation of mining operations; environmental risks; the timing and possible outcome of pending regulatory matters; the realization of the expected economics of the Project; future growth potential of the Project; and future development plans. Forward-looking statements are based on a number of factors and assumptions made by management and considered reasonable at the time such statement was made. Assumptions and factors include: the Company’s ability to complete its planned exploration and development programs; the absence of adverse conditions at the Hycroft Mine; no unforeseen operational delays; no material delays in obtaining necessary permits; results of independent engineer technical reviews; the possibility of cost overruns and unanticipated costs and expenses; the price of gold remaining at levels that continue to render the Hycroft Mine and the Company’s mineral properties economic; the Company’s ability to continue raising necessary capital to finance operations; and the ability to realize on the mineral resource. Forward-looking statements necessarily involve known and unknown risks and uncertainties, which may cause actual performance and financial results in future periods to differ materially from any projections of future performance or result expressed or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to: general business, economic and competitive uncertainties; the actual results of current and future exploration activities; conclusions of economic evaluations; meeting various expected cost estimates; benefits of certain technology usage; changes in the Hycroft Mine parameters and/or economic assessments as plans continue to be refined; future prices of metals; possible variations of mineral grade or recovery rates; the risk that actual costs may exceed estimated costs; geological, mining and exploration technical problems; failure of plant, equipment or processes to operate as anticipated; accidents, labor disputes and other risks of the mining industry; delays in obtaining governmental approvals or financing; risks related to local communities; the speculative nature of mineral exploration and development (including the risks of obtaining necessary licenses, permits and approvals from government authorities); title to properties; and other factors beyond the Company’s control and as well as those factors included herein and elsewhere in the Company’s public disclosure. Although the Company has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in the forward-looking statements, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. Readers are advised to study and consider risk factors disclosed in the Company’s Annual Report on Form 10-K, as amended, for the fiscal year ended December 31, 2025, and all other quarterly filings, available on the EDGAR profile for the Company at www.sec.gov. 3 Investors are cautioned not to put undue reliance on forward-looking statements. The forward-looking statements contained herein are made as of the date of this news release and, accordingly, are subject to change after such date. The Company disclaims any intent or obligation to update publicly or otherwise revise any forward-looking statements or the foregoing list of assumptions or factors, whether as a result of new information, future events or otherwise, except in accordance with applicable securities laws. Investors are urged to read the Company’s filings with U.S. Securities and Exchange Commission which can be viewed online under the Company’s profile on EDGAR at www.sec.gov. Cautionary Note Regarding Non-GAAP Financial Measures Alternative performance measures in this news release such as “cash cost”, “AISC”, and Free Cash Flow are furnished to provide additional information. These non-GAAP performance measures are included in this news release because these statistics are used as key performance measures that management uses to monitor and assess performance of the Hycroft Mine, and to plan and assess the overall effectiveness and efficiency of mining operations. These performance measures do not have a standardized meaning within the accounting principles generally accepted in the Unites States of America (“GAAP”) and, therefore, amounts presented may not be comparable to similar data presented by other mining companies. These performance measures should not be considered in isolation as a substitute for measures of performance in accordance with GAAP. Cash Costs Cash costs include site operating costs (mining, processing, site G&A), refining charges and royalties (excludes corporate office G&A and exploration expenses). While there is no standardized meaning of the measure across the industry, the Company believes that this measure is useful to external users in assessing operating performance. All-In Sustaining Cost Site level AISC includes cash costs plus sustaining capital and closure costs. The Company believes that this measure is useful to external users in assessing operating performance and the Company’s ability to generate free cash flow from potential operations. Free Cash Flow Free cash flows are revenues net of operating costs, royalties, capital expenditures, and cash taxes. The Company believes that this measure is useful to the external users in assessing the Company’s ability to generate cash flows. 4 Appendix The S-K 1300 Technical Report Summary and Initial Assessment with Economic Analysis was prepared by Ausenco Engineering South USA with contributing authors Ausenco Engineering South USA Inc., Independent Mining Consultants Inc. and WestLand Engineering & Environmental Services, Inc. The following are summaries of or excerpts from the TRS, do not purport to be complete and are qualified in their entirety by reference to the full text of the TRS. The Hycroft Mine The Hycroft mine is among the world’s largest precious metals deposits. It is situated on the western flank of the Kamma Mountains on the eastern edge of the Black Rock Desert approximately 54 miles west of Winnemucca in Humboldt and Pershing Counties, Nevada, a Tier-1 mining jurisdiction. The Technical Study is based on the 2026 Mineral Resource Estimate of 16.4 million ounces of gold and 562.5 million ounces of silver (measured and indicated). An additional 5.0 million ounces of gold and 132.8 million ounces of silver exist in the inferred mineral resource category which was not included in this study. In 2023, Hycroft announced the discovery of two new high-grade silver systems within the known resource area and the Company is engaged in a significant exploration drill program (2025-2026 drill program) designed to expand these two systems in addition to targeting newly identified high-grade opportunities. These discoveries represent a significant value driver for the Hycroft Mine. The mine has existing facilities on site including administration buildings, mobile maintenance and light vehicle maintenance shops, warehouse, leach pads, primary, secondary and tertiary crushing systems, assay lab, Merrill-Crowe process plants, refinery and components for a larger second refinery. Current Property and Facilities Layout 5 Technical Study Overview The Technical Study evaluates a heap leaching and milling operation at the Hycroft Mine based on a conventional flotation with POX flowsheet, followed by hot cure, lime boil, cyanide leach, Merrill-Crowe precipitation and refining. The Technical Study was prepared by Ausenco Engineering USA South Inc. (“Ausenco”), Independent Mining Consultants, Inc. (“IMC”), and WestLand Engineering & Environmental Services, Inc. (“WestLand”) in accordance with S-K 1300 and encompasses a mine life of 51 years, processing approximately 57,100 tons per day of sulfide and transition mineralized material. Economic Analysis Summary Unit Value General Inputs Gold Price USD$/oz 3,600 Silver Price USD$/oz 48 Discount Rate % 5 LOM Production Total Mineralized Material Mined kst 1,496,134 Total Waste Mined kst 2,320,719 Average Strip Ratio w:o 1.55 Life of Mine years 51 Total Mill Feed Processed kst 1,046,284 Average Mill Feed Grade (Au) oz/st 0.012 Average Mill Feed Grade (Ag) oz/st 0.43 Total Leach Material Processed kst 210,010 Average Heap Leach Feed Grade (Au) oz/st 0.005 Average Heap Leach Feed Grade (Ag) oz/st 0.12 Average Mill Process Gold Recovery % 82.8 Average Mill Process Silver Recovery % 77.5 Average Heap Leach Gold Recovery % 40.0 Average Heap Leach Silver Recovery % 12.0 Life of Mine Payable Gold Production koz 10,424 Life of Mine Payable Silver Production koz 347,462 Life of Mine Payable Gold Equivalent Production koz 15,057 Transport, Refining, Royalties Gold Payable % 99.5 Silver Payable % 99.5 NSR Royalty (1.5% plus gross up) % NSR 2.14 Refining Costs - Au US$/oz 5.00 Refining Costs - Ag US$/oz 0.50 6 Unit Value LOM Operating Costs Mining Cost US$/st mined 2.28 Mining Cost US$/st processed 6.91 Mill Processing Cost US$/st processed 16.65 Heap Leach Processing Cost US$/st processed 2.49 G&A Cost US$/st processed 0.53 Total Operating Cost US$/st processed 21.96 Cash Costs 1 US$/oz AuEq 1,924 All-In Sustaining Cost 2 US$/oz AuEq 2,147 Capital Costs Initial Capital US$M 2,434 Sustaining Capital US$M 3,107 Closure Costs US$M 243 Financials Pre-Tax NPV (5%) US$M 5,437 Pre-Tax IRR % 18.9 Pre-Tax Payback years 4.3 Post-Tax NPV (5%) US$M 4,344 Post-Tax IRR % 16.9 Post-Tax Payback years 4.7 1 Cash costs consist of mining costs, processing costs, mine-level G&A and refining charges and royalties 2 AISC includes cash costs plus sustaining capital and closure costs Significant Leverage to Gold and Silver Prices 7 LOM Revenue Capital Costs Description Capital Cost (US$M) Sustaining Cost (US$M) Total Cost (US$M) Mining 194 1,171 1,365 Crushing 48 60 109 Sulfide Process 915 776 1,692 Oxide Process 16 46 63 Waste Rock Storage & TMF 208 515 723 Onsite Infrastructure 139 9 148 Offsite Infrastructure 43 366 409 Total Direct Costs 1,563 2,944 4,507 Indirects 382 27 409 Provisions 448 136 584 Owner’s Costs 41 - 41 Total Capital Cost 2,434 3,107 5,541 Note: Includes contingencies Operating Costs The total operating costs are estimated at $21.96/ton or $27.6 billion over the 51-year mine life. These operating costs do not include pre-production operating costs. A summary of operating costs is presented in the table below. Cost Area LOM Total (US$M) US$/ton processed % of Total Mining 8,683 6.91 31.5 Process 18,245 14.52 66.1 G&A 664 0.53 2.4 Total 27,592 21.96 100.0 Note: Includes contingencies The TRS is based on the 2026 Measured and Indicated Mineral Resources Estimate (“MRE”). The mine plan is based only on measured and indicated mineralization that was estimated in the mineral resource block model. Inferred mineralization was not included within the TRS. 8 Hycroft Mineral Resource Estimate as of 21 January 2026, US customary Units Classification Cutoff Grade $ Net of Refining Approximate Cutoff, AuEq oz/ton Ktons Gold oz/ton Silver oz/ton Sulfide Sulfur % Contained Ounces Gold Oz x 1000 Silver Oz x 1000 Heap Leach Resource Measured $1.88 - $3.63 0.001 - 0.002 92,994 0.005 0.11 1.83 446 10,322 Indicated $1.88 - $3.63 0.001 - 0.002 110,374 0.004 0.09 1.54 475 9,492 Meas + Ind $1.88 - $3.63 0.001 - 0.002 203,368 0.005 0.10 1.67 921 19,814 Inferred $1.88 - $3.63 0.001 - 0.002 110,018 0.005 0.09 1.41 528 10,122 Flotation Mill + Concentrate Treatment by Pressure Oxidation and Cyanide Leach Measured $16.73 0.007 734,571 0.011 0.43 2.03 8,154 316,600 Indicated $16.73 0.007 748,876 0.010 0.30 1.84 7,339 226,161 Meas + Ind $16.73 0.007 1,483,447 0.010 0.37 1.93 15,493 542,761 Inferred $16.73 0.007 459,646 0.010 0.27 1.76 4,505 122,725 Combined Mineral Resources Leach Plus Mill Measured $1.88 - $16.73 0.001 - 0.007 827,565 0.010 0.40 2.01 8,600 326,922 Indicated $1.88 - $16.73 0.001 - 0.007 859,250 0.009 0.27 1.80 7,814 235,653 Meas + Ind $1.88 - $16.73 0.001 - 0.007 1,686,815 0.010 0.33 1.90 16,414 562,575 Inferred $1.88 - $16.73 0.001 - 0.007 569,664 0.009 0.23 1.69 5,033 132,847 Notes: 1. Mineral resources based on metal prices of $3,100/troy oz Au and $36.00/troy oz Ag 2. Cutoffs are Income – Refining Cost = NSR 3. Gold Equivalent (AuEq) for Heap Leach = Cyanide Gold + 0.0019 x Total Silver Assay, or at average gold leach recovery AuEq = Fire Gold + 0.0035 Total Silver Assay 4. Gold Equivalent for Mill + Pressure Oxidation = Fire Gold + 0.0107 x Total Silver Assay 5. Numbers may not match exactly due to rounding 6. Mineral resources are contained within a computer-generated optimized pit 7. Total material in that pit is 5.42 billion tons 8. Mineral resources are not mineral reserves, and detailed economic considerations have not been applied 9. Modifying factors for mine and process design have not been applied 10. All units are US customary Ktons means 1,000 short tons. Au and Ag grades are in troy ounces per short ton (oz/ton) Mining Methods Hycroft is planned as a conventional hard rock open pit operation. The mine plan is based on measured and indicated mineralization that was estimated in the mineral resource block model. Independent Mining Consultants developed a mine plan that produces the required process feed and moves sufficient mine waste to assure continued release of the mineralization. The mine will feed two processing facilities: 1. A flotation mill followed by pressure oxidation and leaching of the concentrate, and 2. A Run-of-Mine (“ROM”) heap leach for mineralization that is amenable to direct cyanide leaching. The cutoff grade for the schedule is based on income net of process: ● Income net of process = Net Return after Refining – Process Costs Total mined material begins with 11.3 million tons per annum in preproduction and increases to 71.2 million tons per annum in Years 1 through 3. Additional equipment is acquired later in the mine life with total material movement increasing to 82.0 million tons per annum from Years 5 to 27. From Year 28 until the end of the mine life (Year 51) the total material mined reduces to 70 million tons per annum. 9 The material planned for milling and leaching on the production schedule is potentially minable material. They do not constitute mineral reserves at this time. Low-grade mill feed material is stockpiled throughout the mine life. This material is not fed to the mill and is not part of the economic analysis in this report. Further trade-off studies will analyze the opportunity to feed this additional material through the process plant. Mined Tons & Payable Gold Equivalent Ounces Production Schedule The following graphs reflect the approximate recovered metal produced over the mine life and the relative metal contribution of the heap leach compared to the mill. Recovered Gold and Silver by Year 10 Processing and Recovery Methods A significant portion of the gold and silver in the material going to the process plant is refractory due to its association with pyrite, marcasite, and other sulfide minerals. Oxide and some transition material will be processed on a heap leach pad. A process flowsheet was developed to treat sulfide and certain transition mineralization. These materials are ground and floated to produce a concentrate. The concentrate is then oxidized in the POX plant and subsequently cyanide leached to extract gold and silver. The key process plant design criteria are: ● Major equipment is designed for a nominal throughput of 57,100 tons/day ● Plant process recovery of 82.8% gold and 77.5% silver, given the LOM average grades ● Existing crushing circuit consists of primary, secondary, and tertiary crushing, supported by a coarse ore stockpile and a crushed ore stockpile with dedicated feeders to provide continuous feed to the downstream process plant ● Process flowsheets include three stages of crushing followed by two stages of ball milling, flotation, POX, a cyanide leaching circuit for oxidized flotation concentrate, Merrill-Crowe circuit, and Tailings Management Facilities (“TMF”), with an overall availability of 92% Pregnant solution from the cyanide leach circuit will be processed in the existing Merrill-Crowe zinc cementation facilities. Infrastructure The Hycroft Mine benefits from substantial existing infrastructure constructed and operated over decades of prior production. Key existing facilities include: ● Crushing facility ● Heap leach pads ● North Merrill-Crowe facility ● Onsite access, haul roads and a major east–west railway pass adjacent to the Hycroft property ● Truck shop ● Maintenance building ● Laboratory and administrative buildings ● Power is supplied to the site from nearby power lines ● Potable water is sourced from a well 11 New infrastructure to be constructed includes the Northeast TMF, a Waste Rock Storage Facility, the Process Plant Site and associated infrastructure, a Limestone Plant, and a new rail spur. The proposed processing facility is designed to be inclusive with (or “of”) the existing crushing circuit and North Merrill-Crowe facility. The proposed scope of work includes electrical distribution upgrades, new substations, process control systems, reagent handling facilities (including oxygen and limestone systems), and selective expansion or repurposing of existing maintenance and administrative buildings. The site currently has access to grid power. Additional transmission capacity is required to support the new plant. The total estimated load factoring for load growth, including power for the oxygen plant, is 160 MW. Tie-ins to existing utilities will include water, compressed air, and potable and sewer systems. The development of a freshwater production well field is also planned to support freshwater needs throughout the LOM. A rail spur extension from the Union Pacific line is planned to support delivery of reagents, consumables, and fuel. Additionally, the existing fuel island is to be replaced with a higher-efficiency system during the LOM. Ancillary structures including a covered crushed ore stockpile, new laboratory and maintenance facilities, fuel station upgrades, and technical services expansion are proposed to support operations over the LOM. In addition to this, selected existing buildings will be relocated, expanded, rehabilitated, or repurposed. Contracts Hycroft Mine is subject to a royalty agreement (Sprott Royalty Agreement) with SPRL II which was initiated on May 29, 2020. The royalty is accounted for by Hycroft as a deferred gain liability in which Hycroft received a cash consideration of US$30.0 million in exchange for a perpetual royalty equal to 1.5% (2.14% including withholding tax gross up) of Net Smelter Returns (NSR) from Hycroft Mine. Environmental, Permitting and Social Considerations The Mine is located on public land administered by the Bureau of Land Management (“BLM”) and private land controlled by Hycroft Resources and Development, LLC, a wholly owned subsidiary of Hycroft Mining Holding Company. Hycroft is currently authorized to operate under a plan of operations (“POO”) for ore extraction and processing, water management, engineering, environmental studies, and exploration. In 2012, the BLM issued a Record of Decision (“ROD”) for an EIS conducted for the Mine to expand heap leach operations, open pits, and waste rock facilities. In 2014, the BLM issued a Decision Record with an Environmental Assessment authorizing Hycroft’s POO for construction and operations of a rail spur, open pit expansion, and construction of a processing complex, including the TMF located northeast of the Mine. The TRS outlines development of additional infrastructure to support the modified Project including construction of a new TMF, waste rock storage facilities, rail spur, and a new process plant area. Review and approval of proposed revisions to the POO by the BLM constitutes a federal action under the National Environmental Policy Act and applicable BLM regulations. Accordingly, BLM review of the Plan Application will require preparation of either an Environmental Assessment or an Environmental Impact Statement. 12 |
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EX-23.1 · ex23-1.htm EX-23.1 2 ex23-1.htm EX-23.1 Exhibit 23.1 Ausenco Engineering USA South Inc. 595 S. Meyer Ave. Tucson, AZ 85701 CONSENT OF THIRD-PARTY QUALIFIED PERSON Ausenco Engineering USA South Inc. (“Ausenco”), in connection with the filing of the Report on Form 8-K of Hycroft Mining Holding Corporation (the “Form 8-K”), consents to: ● the filing of the technical report summary titled “Hycroft Technical Report Summary and Initial Assessment with Economics on the Hycroft Mine, Nevada, United States of America” (the “TRS”), with an effective date of May 14, 2026, as an exhibit to and referenced in the Form 8-K; ● the incorporation by reference of the TRS in the Company’s Registration Statements on Form S-1 (Registration No. 333-264293), Form S-3 (Registration Nos. 333-257567, 333-279292, 333-290760 and 333-292470) and Form S-8 (Registration Nos. 333-249620, 333-265434, 333-292803 and 333-280193) (collectively, the “Registration Statements”); ● the use of and references to our name in connection with the Form 8-K, the Registration Statements and the TRS; and ● the information derived, summarized, quoted or referenced from the TRS, or portions thereof, that was prepared by us, that we supervised the preparation of and/or that was reviewed and approved by us, that is included or incorporated by reference in the Form 8-K and the Registration Statements. Ausenco is responsible for authoring, and this consent pertains to the following Sections of the TRS: 1.1, 1.2, 1.8, 1.11, 1.12, 1.13, 1.15, 1.16, 1.17, 1.18, 2.1-2.4.1, 2.5-2.7, 10, 14 – 16, 18.1-18.2.3, 18.2.4-18.2.7,18.2.8.2-18.3.2, 18.3.4, 18.3.5, 19, 22.1, 22.5, 22.7-22.12, 22.13.1.3, 22.13.1.5-22.13.1.7, 22.13.2.2, 22.13.2.4, 22.13.2.5, 23.1, 23.4, 23.6, 24 and 25. May 28, 2026 /s/ David Thomas Signature of Authorized Person for Ausenco Engineering USA South Inc. David Thomas Print name of Authorized Person for Ausenco Engineering USA South Inc. |