Integra Resources Corp 6-K, filed Nov 8, 2023

Integra Resources Corp. (ITRG)

6-K 2023-11-08 For: 2023-08-25

View Original

Added on April 11, 2026

About this 6-K

Integra Resources Corp filed this 6-K on November 8, 2023.

Search and read filings like this one from Claude or ChatGPT with the SEC filings MCP server →

	Integra Resources Corp.

Date: November 8, 2023	/s/ Andree St-Germain
	Andree St-Germain
	Chief Financial Officer

99.1	Report entitled "Technical Report for the DeLamar and Florida Mountain Gold - Silver Project, Owyhee County, Idaho, USA" dated October 31, 2023, with an effective date of August 25, 2023

99.2	News Release dated November 8, 2023

1.0 SUMMARY	1
1.1 Property Description and Ownership	1
1.2 Exploration and Mining History	2
1.3 Geology and Mineralization	4
1.4 Drilling, Drill-Hole Database, and Data Verification	5
1.5 Metallurgical Testing	5
1.6 Mineral Resources	6
1.7 Mineral Reserves	10
1.8 Mining Methods	12
1.9 Processing and Recovery Methods	13
1.10 Capital and Operating Costs	14
1.11 Economic Analysis	16
1.12 Conclusions and Recommendations	18
1.12.1 Opportunities and Risks	19
1.12.2 Recommended Work Program	19

2.0 INTRODUCTION AND TERMS OF REFERENCE	21
2.1 Project Scope and Terms of Reference	21
2.2 Frequently Used Acronyms, Abbreviations, Definitions, and Units of Measure	23

3.0 RELIANCE ON OTHER EXPERTS	26

4.0 PROPERTY DESCRIPTION AND LOCATION	27
4.1 Location	27
4.2 Land Area	28
4.3 Agreements and Encumbrances	30
4.4 Environmental Liabilities	32

5.0 ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE, AND PHYSIOGRAPHY	34
5.1 Access to Property	34
5.2 Physiography	35
5.3 Climate	35
5.4 Local Resources and Infrastructure	35

6.0 HISTORY	36
6.1 Carson Mining District Discovery and Early Mining: 1863 - 1942	36
6.2 Historical Exploration Since the 1960s	38
6.3 Modern Historical Mining: 1977 through 1998	40

7.0 GEOLOGIC SETTING AND MINERALIZATION	43
7.1 Regional Geologic Setting	43
7.2 Owyhee Mountains and District Geology	44
7.3 DeLamar Project Area Geology	46
7.3.1 DeLamar Area	46
7.3.2 Florida Mountain Area	51
7.4 Mineralization	51
7.4.1 District Mineralization	54
7.5 DeLamar Project Mineralization	55
7.5.1 DeLamar Area	55
7.5.1.1 Milestone Prospect	59
7.5.2 Florida Mountain Area	59

8.0 DEPOSIT TYPE	62

9.0 EXPLORATION	64
9.1 Topographic and Geophysical Surveys	64
9.1.1 2019 Airborne Magnetic Survey	65
9.1.2 2020 Induced Polarization and Resistivity Surveys	66
9.2 Rock and Soil Geochemical Sampling	66
9.3 Geologic Mapping 2020 - 2021	66
9.4 Database Development and Checking	66
9.5 Cross-Sectional Geologic Model	67

10.0 DRILLING	68
10.1 Summary	68
10.2 Historical Drilling - DeLamar Area	69
10.2.1 Continental 1966	69
10.2.2 Earth Resources 1969 - 1970	69
10.2.3 Sidney Mining 1972	72
10.2.4 Earth Resources ~1970 - 1983	72
10.2.5 NERCO 1985 - 1992	72
10.2.6 Kinross 1993 - 1998	72
10.3 Historical Drilling - Florida Mountain Area	73
10.3.1 Earth Resources 1972 - 1976	73
10.3.2 ASARCO 1977	73
10.3.3 Earth Resources 1980	73
10.3.4 NERCO 1985 - 1990	73
10.3.5 Kinross 1995 - 1997	74

10.4 Integra Drilling 2018 -2023	74
10.4.1 DeLamar Area Drilling 2018 - 2022	74
10.4.2 Florida Mountain Area Drilling 2018 - 2021	76
10.4.3 Integra 2022-2023 Stockpile Drilling	76
10.5 Drill-Hole Collar Surveys	77
10.6 Down-Hole Surveys	77
10.7 Sample Quality and Down-Hole Contamination	77
10.8 Summary Statement	78

11.0 SAMPLE PREPARATION, ANALYSIS, AND SECURITY	80
11.1 Historical Sample Preparation and Security	80
11.2 Integra Sample Handling and Security	80
11.3 Historical Sample Analysis - Prior to Commercial Open-Pit Mining Operations	81
11.4 Historical Sample Analysis - During Commercial Open-Pit Mining Operations	81
11.5 Integra Sample Analysis	82
11.6 Quality Assurance / Quality Control Programs	83
11.6.1 Historical Operators	83
11.6.2 Integra	84
11.7 Summary Statement	92

12.0 DATA VERIFICATION	93
12.1 Drill-Hole Data Verification	93
12.1.1 Collar and Down-Hole Survey Data	93
12.1.2 Assay Data	94
12.1.3 Integra Data Verification	99
12.2 Additional Data Verification	99
12.3 Site Inspections	100
12.4 Metallurgical Data Verification	101
12.5 Mining & Geotechnical Data Verification	101
12.6 Summary Statement	102

13.0 MINERAL PROCESSING AND METALLURGICAL TESTING	103
13.1 DeLamar Area Production 1977 - 1992	103
13.1.1 Mill Production 1977 - 1992	103
13.1.2 Cyanide Heap Leaching 1987 - 1990	103
13.2 Historical Testing	104
13.3 Integra 2018-2023 Metallurgical Testing	105
13.3.1 DeLamar and Florida Mountain Samples	105
13.3.2 DeLamar and Florida Mountain Mineralogy	106
13.3.2.1 Bulk Mineralogy and Textural Analysis	106
13.3.2.2 DeLamar Non-Oxide Sample Gold and Silver Deportment Analysis	107

Mine Development Associates, a division of RESPEC
October 31, 2023

13.3.3 DeLamar and Florida Mountain Heap Leach Testing	108
13.3.3.1 DeLamar Bottle-Roll Testing	108
13.3.3.2 DeLamar Column Leach Testing	109
13.3.3.3 DeLamar Load/Permeability Testing	112
13.3.3.4 Florida Mountain Bottle-Roll Testing	113
13.3.3.5 Florida Mountain Column-Leach Testing	114
13.3.3.6 Florida Mountain Load/Permeability Testing	116
13.3.4 DeLamar and Florida Mountain Mill Testing	117
13.3.4.1 DeLamar Mill Testing	117
13.3.4.2 Florida Mountain Mill Testing	125
13.4 DeLamar and Florida Mountain PFS Recovery and Reagent Estimates	128
13.4.1 Heap Leach Recovery Estimates	129
13.4.2 Milling Recovery Estimates	129
13.5 Post PFS Historic Backfill and Waste Dump Testing	131
13.6 Summary Statement	132

14.0 MINERAL RESOURCE ESTIMATES	134
14.1 Introduction	134
14.2 DeLamar Project Data	136
14.2.1 Drill-Hole Data	137
14.2.2 Topography	137
14.3 Modeling of Historical Underground Workings	138
14.4 Geological Modeling	138
14.5 Deposit Geology Pertinent to Resource Modeling	138
14.6 Water Table	139
14.7 Oxidation Modeling	139
14.8 Density Modeling	140
14.9 DeLamar Area In Situ Gold and Silver Modeling	142
14.9.1 Mineral Domains	142
14.9.2 Assay Coding, Capping, and Compositing	148
14.9.3 Block Model Coding	150
14.9.4 Grade Interpolation	150
14.9.5 Model Checks	152
14.10 Florida Mountain Area In Situ Gold and Silver Modeling	152
14.10.1 Mineral Domains	152
14.10.2 Assay Coding, Capping, and Compositing	158
14.10.3 Block Model Coding	159
14.10.4 Grade Interpolation	160
14.10.5 Model Checks	161
14.11 Stockpile Gold and Silver Modeling	161
14.12 DeLamar Project Mineral Resources	164
14.13 Discussion of Resource Modeling	179

15.0 MINERAL RESERVE ESTIMATES	180
15.1 Geotechnical Parameters	180
15.2 Mineral Reserve Statement	181

16.0 MINING METHODS	183
16.1 WRSFs and Backfill Designs	183
16.2 Mine Production Schedule	185
16.3 Equipment Requirements	192
16.4 Personnel Requirements	196

17.0 RECOVERY METHODS	198
17.1 Process Production Schedule	198
17.2 Process Design	199
17.3 Heap Leach Operation	201
17.3.1 Heap-Leach Crushing Plant and Agglomeration	201
17.3.2 Stacking and Heap Leaching	205
17.3.3 Heap-Leach Solution Pond Operation	206
17.3.4 Heap-Leach Production Forecasting	206
17.4 Milling Operations	208
17.4.1 Comminution	211
17.4.2 Flotation and Regrind	212
17.4.3 Concentrate Leaching	212
17.5 Merrill-Crowe Plant and Refinery	213
17.6 Reagents	214
17.7 Tailing Storage Facilities (TSF) and Water Consumption	214
17.7.1 Tailing Storage Facilities and Water Reclamation	214
17.8 Water Consumption	214
17.9 Blowers and Compressors	215
17.10 Power Consumption	216
17.11 Control Systems	217
17.12 Assay and Metallurgical Laboratories	218
17.13 Alternative Processing Options	218
17.13.1 High-Grade Heap Leaching Ore Processing	218
17.13.2 Milling Options for DeLamar Non-oxide Ore	220
17.13.3 Non-Oxide Ore Gravity Concentration	220
17.13.4 Cleaner Flotation Stages	221
17.13.5 Process Personnel and Staffing	221

18.0 PROJECT INFRASTRUCTURE	222
18.1 Access	222
18.2 Heap-Leach Pad Construction	222
18.3 Slaughterhouse Gulch Tailing Storage Facility	223
18.4 Concentrate Leach Tailing Storage Facility	223
18.5 Power Generation and Distribution	223
18.6 Power Pricing	224
18.7 Railveyor Haulage System	224
18.8 Project Buildings	224

19.0 MARKET STUDIES AND CONTRACTS	227

20.0 ENVIRONMENTAL STUDIES, PERMITTING, AND SOCIAL OR COMMUNITY IMPACT	228
20.1 Environmental Studies and Permitting	228
20.1.1 Environmental Baseline Studies	229
20.1.2 Federal Permitting	231
20.1.2.1 Bureau of Land Management Plan of Operations	231
20.1.2.2 U.S. Army Corps of Engineers Authorization, Section 404 of Clean Water Act	231
20.1.2.3 Environmental Impact Statement	232
20.1.3 Idaho Permitting	232
20.1.3.1 Idaho Pollutant Discharge Elimination System Permit ("IPDES")	232
20.1.3.2 Other Major State Authorizations, Licenses, and Permits	232
20.1.4 Local County Requirements	234
20.1.5 Idaho Joint Review Process	234
20.2 EIS/Permitting Timelines and Costs	235
20.2.1 Permitting Timelines	235
20.2.2 Most Likely Case EIS Cost Summary	236
20.2.3 Integra Permitting Management Strategy	237
20.3 Social and Community	237
20.4 Dark Skies Compliant Lighting	237
20.5 Waste Characterization	238
20.6 Closure and Reclamation Strategy	238

21.0 CAPITAL AND OPERATING COSTS	240
21.1 Mining Capital	241
21.1.1 Primary Equipment	242
21.1.2 Railveyor	242
21.1.3 Support Equipment	242
21.1.4 Blasting Equipment	243
21.1.5 Mine Maintenance Capital	243
21.1.6 Other Capital	243
21.1.7 Mine Preproduction Costs	244
21.2 Process Capital	244
21.2.1 Freight	246
21.2.2 Construction Support	246
21.2.3 EPCM	246
21.2.4 Vendor Support	247
21.2.5 Spare Parts	247
21.2.6 Heap-Leach Pad Capital	247
21.2.7 Tailing Impoundments	247
21.3 Owner and Infrastructure Capital Costs	247
21.3.1 Light Vehicles	248
21.3.2 Preproduction Owner Costs	248
21.4 Reclamation Costs and Salvage Value	249

21.5 Mine Operating Costs	250
21.5.1 Mine General Services	251
21.5.2 Mine Maintenance	252
21.5.3 Drilling	253
21.5.4 Blasting	256
21.5.5 Loading	258
21.5.6 Hauling	260
21.5.7 Mine Support	262
21.6 Process Operating Cost Summary	264
21.6.1 Power	265
21.6.2 Consumable Items	265
21.6.3 Maintenance	266
21.6.4 Supplies and Services	266
21.6.5 Application of Operating Costs	266
21.7 G&A Costs	267

22.0 ECONOMIC ANALYSIS	269
22.1 Mining Physicals	270
22.2 Pre-Tax Cash Flow	272
22.3 Tax Considerations & After-Tax Cash Flow	273
22.4 Sensitivity Analyses	275

23.0 ADJACENT PROPERTIES	277

24.0 OTHER RELEVANT DATA AND INFORMATION	278

25.0 INTERPRETATION AND CONCLUSIONS	279
25.1 DeLamar Project Opportunities	281
25.1.1 Heap Leach Stage 1	281
25.1.2 Exploration for Underground Development	281
25.1.3 Other Opportunities	282
25.1.4 Environment, Social, and Governance ("ESG")	282
25.1.4.1 Equipment and Vehicle Electrification	282
25.1.4.2 Ancillary Waste (Office, Truck Shop, Etc.)	283
25.1.5 Geotechnical Optimization	283
25.2 DeLamar Project Risks	283
25.2.1 Operating Risks	283
25.2.2 Permitting Risks and Risk Management Strategy	284
25.2.3 Climate Change Risks	285

26.0 RECOMMENDATIONS	286

27.0 REFERENCES	288

28.0 DATE AND SIGNATURE PAGE	295

29.0 CERTIFICATE OF QUALIFIED PERSONS	296

Table 1-1 Resource Pit Optimization Cost Parameters	8
Table 1-2 Resource Pit-Optimization Metal Recoveries by Deposit and Oxidation State	8
Table 1-3 Total DeLamar Project Gold and Silver Resources	9
Table 1-4 DeLamar and Florida Mountain Economic Parameters	11
Table 1-5 Total Proven and Probable Reserves, DeLamar and Florida Mountain	12
Table 1-6 Capital Cost Summary	15
Table 1-7 Operating and Total Cost Summary	16
Table 1-8 Project Sensitivity to Metal Prices	17
Table 1-9 Summary of Integra Estimated Costs for Recommended Program	20
Table 2-1 Qualified Persons, Dates of Most Recent Site Visits, and Report Responsibilities	22
Table 4-1 Summary of Estimated Land Holding Costs for the DeLamar Project	30
Table 4-2 Summary of Royalties	31
Table 6-1 DeLamar Mine Gold and Silver Production 1977 - 1992	41
Table 7-1 Summary of Volcanic Rock Units in the Vicinity of the DeLamar Mine	47
Table 10-1 DeLamar Project Drilling Summary	68
Table 10-2 Historical Drilling at the DeLamar and Florida Mountain Areas	69
Table 10-3 Integra Drilling Summary	75
Table 11-1 Integra Certified Reference Materials	85
Table 13-1 Historic Mineralogy and Metallurgical Testing, DeLamar and Florida Mountain	104
Table 13-2 PEA Column-Leach and Bottle-Roll Tests, DeLamar and Glen Silver Bulk Samples	110
Table 13-3 PFS Column-Leach Test and Bottle-Roll Test Results, DeLamar Core Composites	111
Table 13-4 Column-Leach and Bottle-Roll Test Results, Florida Mountain PEA and PFS Testing	116
Table 13-5 Flotation Concentrate Regrind/Cyanidation Tests, DeLamar Non-Oxide Composites	122
Table 13-6 Florida Mountain Flotation Concentrate Regrind/Cyanidation	128
Table 13-7 PFS Heap-Leach Recovery and Reagent Consumption Estimates	129
Table 13-8 DeLamar PFS Non-Oxide Mill Recovery Estimates	130
Table 13-9 DeLamar PFS Non-Oxide Reagent Estimates	130
Table 13-10 Florida Mountain PFS Non-Oxide Overall Mill Recoveries	131
Table 13-11 Florida Mountain PFS Non-Oxide Overall Reagent Estimates	131
Table 13-12 Historic Backfill and Dump Preliminary BRT Gold Recovery (%) Results	132
Table 13-13 Historic Backfill and Dump Preliminary BRT Silver Recovery Results	132
Table 14-1 DeLamar Area Specific Gravity Values Assigned to Resource Model	141
Table 14-2 Florida Mountain Area Specific Gravity Values Assigned to Resource Model	141
Table 14-3 Approximate Grade Ranges of DeLamar Area Gold and Silver Domains	142
Table 14-4 DeLamar Area Gold and Silver Assay Caps by Domain	148
Table 14-5 Descriptive Statistics of DeLamar Area Coded Gold Assays	148
Table 14-6 Descriptive Statistics of DeLamar Area Coded Silver Assays	149
Table 14-7 Descriptive Statistics of DeLamar Area Gold Composites	149
Table 14-8 Descriptive Statistics of DeLamar Area Silver Composites	149
Table 14-9 Summary of DeLamar Area Grade Estimation Parameters	150
Table 14-10 Approximate Grade Ranges of Florida Mountain Area Gold and Silver Domains	152
Table 14-11 Florida Mountain Area Gold and Silver Assay Caps by Domain	158
Table 14-12 Descriptive Statistics of Florida Mountain Area Coded Gold Assays	158

Table 14-13 Descriptive Statistics of Florida Mountain Area Coded Silver Assays	159
Table 14-14 Descriptive Statistics of Florida Mountain Area Gold Composites	159
Table 14-15 Descriptive Statistics of Florida Mountain Area Silver Composites	159
Table 14-16 Summary of Florida Mountain Area Estimation Parameters	161
Table 14-17 Stockpile Gold and Silver Assay Caps by Zone	163
Table 14-18 Resource Pit Optimization Cost Parameters	164
Table 14-19 Resource Pit-Optimization Metal Recoveries	165
Table 14-20 Gold-Equivalency Factors Applied to Silver Grades	165
Table 14-21 Total DeLamar Project Gold and Silver Resources	166
Table 14-22 Resource Classification Parameters	167
Table 14-23 Gold and Silver Resources of the DeLamar Area	168
Table 14-24 Gold and Silver Resources of the Florida Mountain Area	169
Table 15-1 DeLamar and Florida Mountain Economic Parameters	181
Table 15-2 Total Proven and Probable Reserves, DeLamar and Florida Mountain	182
Table 16-1 Waste Rock Containment Requirements (With Swell)	183
Table 16-2 WRSF and Backfill Design Capacities	184
Table 16-3 Florida Mountain Mine Production Schedule	186
Table 16-4 DeLamar PFS Mine Production Schedule	187
Table 16-5 Total PFS Mine Production Schedule	188
Table 16-6 PFS Process Production Schedule	189
Table 16-7 Leach Ore Stockpile Balance	191
Table 16-8 Mill Ore Stockpile Balance	191
Table 16-9 PFS Yearly Mine Equipment Requirements	193
Table 16-10 Schedule Efficiency	194
Table 16-11 PFS Mining Personnel Requirements	197
Table 17-1 Heap Leach and Mill Feed Schedules	200
Table 17-2 Heap Leach Major Design Criteria	201
Table 17-3 List of Main Mechanical Equipment for the Heap-Leach Crushing Plant	204
Table 17-4 List of Conveying and Stacking Equipment for the Heap-Leach Pad	205
Table 17-5 Heap-leach Gold and Silver Production Forecasts	207
Table 17-6 Typical Achievable Variances Between Modeled and Actual Metal Productions	208
Table 17-7 Main Design Criteria for Concentrator and Cyanidation Plants	208
Table 17-8 List of Main Mill Equipment	209
Table 17-9 Main Process Reagents and Consumables	215
Table 17-10 List of Blowers and Compressors for Supply Plant and Instrument Air	216
Table 17-11 Summary of Connected Power for Heap-leach and Mill Operations	217
Table 17-12 Processing Options for High-Grade Heap-Leach Ores	219
Table 17-13 Milling Options	220
Table 21-1 Capital Cost Summary	240
Table 21-2 Operating and Total Cost Summary	241
Table 21-3 Mining Capital Cost by Year	241
Table 21-4 Stage 1 (Phase 1) Capital Costs, Oxide & Mixed Ore Heap Leach/Merrill Crowe Plant	245
Table 21-5 Stage 1 (Phase 2) Capital Costs, Oxide & Mixed Ore Heap Leach/Merrill Crowe Plant	245
Table 21-6 Stage 2 Capital Costs - Non-Oxide Ore Grinding, Flotation, Leach Plant	246
Table 21-7 Infrastructure & Owners Capital	248

Table 21-8 Light Vehicle Cost Estimate	249
Table 21-9 Yearly Mine Operating Cost Estimate	251
Table 21-10 Mine General Services, Engineering and Geology Costs	251
Table 21-11 Yearly Mine Maintenance Costs	253
Table 21-12 Yearly Drilling Costs	255
Table 21-13 Yearly Blasting Costs	257
Table 21-14 Yearly Loading Costs	259
Table 21-15 Yearly Haulage Costs	261
Table 21-16 Yearly Mine Support Costs	263
Table 21-17 Operating Costs Ratios for Deposit/Ore Types	264
Table 21-18 Power Summary for Heap Leach & Merrill Crowe Facility	265
Table 21-19 Power Summary for Non-Oxide Mill Facility	265
Table 21-20 Modified Process Operating Costs	268
Table 22-1 Yearly Mine & Process Physicals	271
Table 22-2 Pre-Tax Cash Flow	273
Table 22-3 Depreciation, Depletion, Taxes, and After-Tax Cash Flow	274
Table 22-4 Project Sensitivity to Metal Prices	275
Table 22-5 Operating Cost Sensitivity (After Tax)	275
Table 22-6 Capital Cost Sensitivity (After Tax)	275
Table 26-1 Integra Cost Estimate for the Recommended Work Program	287

Figure 1-1 Annual Operating After-Tax Cash Flow	17
Figure 1-2 After-Tax Sensitivity	18
Figure 4-1 Location Map, DeLamar Gold - Silver Project	28
Figure 4-2 Property Map for the DeLamar Project	29
Figure 5-1 Access Map for the DeLamar Project	34
Figure 6-1 Estimated Annual Production Value, Silver City (Carson) Mining District 1863-1942	37
Figure 6-2 Aerial View, Zones of Exploration and Mining Since 1969 within the DeLamar Area	39
Figure 6-3 Aerial View of the Florida Mountain (Stone Cabin Mine) Area	41
Figure 6-4 Photograph of the Reclaimed Florida Mountain (Stone Cabin) Mine Area	42
Figure 7-1 Shade Relief Map with Regional Setting of the Owyhee Mountains	43
Figure 7-2 Geologic Map of the Central Owyhee Mountains	45
Figure 7-3 Land Position Map Showing Mineralized Zones	48
Figure 7-4 Integra Generalized 2018 DeLamar Area Geology	49
Figure 7-5 Integra 2018 Schematic Cross-Section, DeLamar Area	49
Figure 7-6 Volcano-Tectonic Setting of the DeLamar Area	50
Figure 7-7 Geologic Map of Florida Mountain	52
Figure 7-8 Schematic Florida Mountain Cross Section (Looking Northeast)	53
Figure 7-9 Veins of the Historical De Lamar Mine, Elevation 6,240 Feet	56
Figure 7-10 Longitudinal Section of the Black Jack - Trade Dollar Mine	61
Figure 8-1 Schematic Model of a Low-Sulfidation Epithermal Mineralizing System	62
Figure 9-1 Plan View of Resistivity from 2017 and 2018 IP/RES Surveys	64
Figure 9-2 Plan View of Chargeability from 2017 and 2018 IP/RES Surveys	65
Figure 10-1 Map of DeLamar Area Drill Holes	70
Figure 10-2 Map of Florida Mountain Area Drill Holes	71
Figure 11-1 CRM CDN-GS-P6A Gold Analyses - 2018-2019 Drill Programs	86
Figure 11-2 CRM SN74 Silver Analyses - 2018-2019 Drill Programs	86
Figure 11-3 All CRM Gold Analyses - 2020-2021 Drill Programs	87
Figure 11-4 All CRM Silver Analyses - 2020-2021 Drill Programs	87
Figure 11-5 CRM OREAS 251b Gold Analyses - 2022-2023 Drill Programs	88
Figure 11-6 CRM OREAS 211 Silver Analyses - 2022-2023 Drill Programs	89
Figure 11-7 Blank Gold Values vs. Gold Values of Previous Samples - 2018-2019 Drill Programs	90
Figure 11-8 Blank Gold Values vs. Gold Values of Previous Samples - 2020-2021 Drill Programs	90
Figure 11-9 Blank Gold Values vs. Gold Values of Previous Samples - 2022-2023 Drill Programs	91
Figure 11-10 RC Field Duplicate Gold Results Relative to Primary Sample Assays	92
Figure 12-1 Repeat Mine Lab Silver Assays Relative to Original Mine Lab Assays	95
Figure 12-2 Outside Lab Silver Assays Relative to Original Mine Lab Assays	97
Figure 12-3 Mine Lab Silver AA Analyses Relative to Mine Lab Silver Fire Assays	98
Figure 12-4 Mine Lab Gold AA Analyses Relative to Mine Lab Gold Fire Assays	98
Figure 13-1 Gold Recovery, Bottle-Roll Tests, DeLamar PFS Variability Composites	108
Figure 13-2 Florida Mountain Bottle-Roll Test Recoveries, Variability Composites	114
Figure 13-3 Glen Silver Flotation Recoveries, PFS Composites	118
Figure 13-4 Sullivan Gulch Flotation Recoveries, PFS Composites	119
Figure 13-5 Grind-Cyanide Leach Testing Gold and Silver Recoveries, Sullivan Gulch Composites	121

Figure 14-1 Cross Section 2190 NW Showing Sommercamp and N. DeLamar Gold Domains	144
Figure 14-2 Cross Section 2010 NW Showing Sommercamp and N. DeLamar Silver Domains	145
Figure 14-3 Cross Section 2790 NW Showing Gold Domains at Glen Silver	146
Figure 14-4 Cross Section 2790 NW Showing Silver Domains at Glen Silver	147
Figure 14-5 Florida Mountain Cross Section 2830 N Showing Geology and Gold Domains	154
Figure 14-6 Florida Mountain Cross Section 2830 N Showing Geology and Silver Domains	155
Figure 14-7 Florida Mountain Cross Section 3280 N Showing Geology and Gold Domains	156
Figure 14-8 Florida Mountain Cross Section 3280 N Showing Geology and Silver Domains	157
Figure 14-9 DeLamar Project Stockpile Locations	162
Figure 14-10 Cross Section 2190 NW Showing Sommercamp - Regan and N. DeLamar Block-Model Gold Grades	171
Figure 14-11 Cross Section 2190 NW Showing Sommercamp - Regan and N. DeLamar Block-Model Silver Grades	172
Figure 14-12 Cross Section 2790 NW Showing Glen Silver Block-Model Gold Grades	173
Figure 14-13 Cross Section 2790 NW Showing Glen Silver Block-Model Silver Grades	174
Figure 14-14 Cross Section 2830 N Showing Florida Mountain Block-Model Gold Grades	175
Figure 14-15 Cross Section 2830 N Showing Florida Mountain Block-Model Silver Grades	176
Figure 14-16 Cross Section 3280 N Showing Florida Mountain Block-Model Gold Grades	177
Figure 14-17 Cross Section 3280 N Showing Florida Mountain Block-Model Silver Grades	178
Figure 17-1 Simplified Flow Sheet of the DeLamar Project Heap-Leach Facility	202
Figure 17-2 General Layout of the DeLamar Project Process Facilities	203
Figure 17-3 Simplified Process Flow Diagram of the Concentrator and Cyanide Leach Plants	210
Figure 18-1 PFS General Arrangement Drawing	226
Figure 22-1 Annual Operating After-Tax Cash Flow	269
Figure 22-2 Gold Equivalent Production Profile by Process Method	272
Figure 22-3 Gold Equivalent Profile by Process Metals	272
Figure 22-4 After-Tax Sensitivity	276

Parameter	DeLamar In Situ	Florida Mtn In Situ	N DM-SC Stockpile	DM #1 + #2 Stockpile	Jacobs Gulch Stockpile	Unit
Mining Cost	$2.00	$2.00	$1.70	$1.70	$1.70	$/tonne mined
Heap Leach
Oxide Processing	$2.75	$2.75	$5.00	$4.25	$4.00	$/tonne processed
Mixed Processing	$3.75	$3.50	$5.00	$4.25	$4.00	$/tonne processed
Incremental Haulage	$0.20	$0.20	$0.20	$0.20	$0.20	$/tonne processed
G&A Cost	$0.40	$0.40	$0.40	$0.40	$0.40	$/tonne processed
Mill - DeLamar Area
Non-Oxide Processing	$16.75	$9.75				$/tonne processed
Incremental Haulage	$0.20	$0.20				$/tonne processed
G&A Cost	$0.25	$0.25				$/tonne processed
Au Price	$1,800					$/oz produced
Ag Price	$21.00					$/oz produced
Au Refining Cost	$5.00					$/oz produced
Ag Refining Cost	$0.50					$/oz produced
Royalty	Table 4.2					NSR

	DeLamar In Situ			Florida Mountain In Situ			DeLamar Stockpiles			Florida Mtn Stockpiles
Process Type	Oxide	Mixed	Non- Oxide	Oxide	Mixed	Non- Oxide	N DM- SC	DM #1	DM #2	ALL
Heap Leach - Au	90%	70%	-	90%	75%	-	70%	80%	80%	90%
Heap Leach - Ag	40%	50%	-	55%	60%	-	60%	50%	55%	45%
Mill - Albion - Glen Silver - Au	-	-	78%	-	-	-	-	-	-	-
Mill - Albion - Glen Silver - Ag	-	-	78%	-	-	-	-	-	-	-
Mill - Albion - Milestone - Au	-	-	70%	-	-	-	-	-	-	-
Mill - Albion - Milestone - Ag	-	-	75%	-	-	-	-	-	-	-
Mill - Albion - Other Areas - Au	-	-	87%	-	-	-	-	-	-	-
Mill - Albion - Other Areas - Ag	-	-	87%	-	-	-	-	-	-	-
Mill - Agitated Leach - Au	-	-	-	-	-	95%	-	-	-	-
Mill - Agitated Leach - Au	-	-	-	-	-	92%	-	-	-	-

Item	Estimated Cost US$
Exploration Drilling (2,000 meters)	1,200,000
Stockpile Drilling (1,500 meters)	$600,000
Metallurgical Testwork	$400,000
Engineering, Design	$3,500,000
Permitting	$2,200,000
Total	$7,600,000

Company	Qualified Person	Professional Designation	Date of Most Recent Site Visit	QP Responsibilities by Report Section
RESPEC	Tom Dyer	P.E.	10/27/2020	1.7, 1.8, 1.10, 1.11, 1.12, 15) except 15.1), 16, 18.1, 18.5, 18.6, 18.9, 19, 21 (except 21.2, 21.6.1 through 21.6.5), 22, 25, 26
	Michael Gustin	C.P.G.	1/13/2023	1.1, 1.2, 1.3, 1.4, 1.6, 1.12, 2 through 12, 14, 20, 23 through 29
	Jay R. Nopola	P.E.	9/24/2020	15.1
McClelland Laboratories	Jack McPartland	QP MMSA	1/17/2019	1.5, 13
M3 Engineering	Matthew Sletten	P.E.	10/27/2020	18.7 and 18.8
M3 Engineering	Benjamin Bermudez	P.E.	none	1.9, 17 (except 17.3.3, 17.3.4), 21.2 (except 21.2.6, 21.2.7), 21.6
Welsh Hagen Associates	John Welsh	P.E.	10/27/2020	17.3.3, 18.2, 18.3, 18.4, and portions of 21 and 25
Warm Springs Consulting	John F. Gardner	P.E.	none	18.5
Elbow Creek Engineering	Michael M. Botz	P.E.	none	17.3.2, 17.3.4

AA	atomic absorption spectrometry
Ag	silver
Au	gold
AuEq	gold equivalent
cm	centimeters
core	diamond core-drilling method
^oC	degrees centigrade
CAD$	Canadian dollars
CO2e	carbon dioxide equivalent
dMTPH	dry metric tonne per hour
°F	degrees Fahrenheit
ft	foot or feet
gpm	gallons per minute
g/t	grams per tonne
ha	hectares
h or hr	hour
ICP	inductively coupled plasma analytical method
in.	inch or inches
kg	kilograms
km	kilometers
kPa	kilopascals

kt	kilotonnes
ktpd	metric kilotonnes per day
kV	kilovolt
kWh	kilowatt hour
l or L	liter
lbs	pounds
µm	micron
m	meters
m³	cubic meters
Ma	million years old
mi	mile or miles
mm	millimeters
NPV	net present value
NSR	net smelter return
oz	ounce
ppm	parts per million
ppb	parts per billion
QA/QC	quality assurance and quality control
RC	reverse-circulation drilling method
RQD	rock-quality designation
t or mt	metric tonne or tonnes
TPD	metric tonnes per day
tph	metric tonnes per hour
ton	Imperial short ton
U.S.	United States of America
MW	megawatt
MWh	megawatt hours
XRD	x-ray diffraction
XRF	x-ray fluorescence

Annual Fee Type	Amount
Unpatented Claims BLM Maintenance Fees	$ 138,600
Unpatented Claims County Filing Fees	$ 80
Estimated Holding Costs for Unpatented Mining Claims	$ 138,680
Access, Pipeline, Land Agreement Fees	$ 253,333
Owyhee County Patented Claims Taxes	$ 5,849
Patented Claims Agreement Fees	$ 48,100
State Lands Lease (annual rental and advanced minimum royalty payments)	$ 27,282
Total Estimated Annual Holding Taxes and Fees	$ 473,244

Owner	Number of Claims or Lease	Royalty
Triple Flag	183 unpatented claims and 13 tax parcels comprised of patented claims	2.5% NSR up to CAD$10M; then 1.0% NSR
Predecessor Owner	101 unpatented claims	2.0% NSR
State of Idaho	3,348 acres under seven separate Mining Leases	5.0% production royalty of gross receipts
Party A	1 patented claim	5.0% NSR to $50,000; then 2.5% NSR to a maximum of $400,000
Party B	1 patented claim	5.0% NSR to a maximum of $50,000
Party C	2 patented claims	2.5% NSR
Party D	1 patented claim	2.5% NSR
Party E	9 patented claims and 1 unpatented claim	2.5% NSR to a maximum of $650K
Party F	12 patented claims	2% NSR to a maximum of $400K
Party G	7 patented claims	2% NSR
Party H	4 unpatented claims	2% NSR to a maximum of $80,000

Year	Ore	Mill Grade		Bullion Poured
	(short dry tons)	Gold	Silver	total troy ounces
		(oz/ton)	(oz/ton)	Gold	Silver
1977	309,000	0.034	3.55	9,600	853,000
1978	637,000	0.031	3.78	18,100	1,872,000
1979	715,000	0.034	3.12	22,200	1,734,000
1980	780,000	0.031	2.53	22,100	1,534,000
1981	771,000	0.034	2.55	24,000	1,529,000
1982	738,000	0.036	2.77	24,300	1,589,000
1983	846,000	0.035	2.32	27,100	1,526,000
1984	784,000	0.023	2.83	15,500	1,742,000
1985	820,000	0.038	2.66	29,800	1,751,000
1986	849,000	0.035	2.52	27,700	1,713,000
1987	861,000	0.037	2.54	30,200	1,738,000
1988	830,000	0.033	2.34	32,000	1,738,000
1989	840,000	0.033	2.56	34,000	1,863,000
1990	829,000	0.037	2.04	30,400	1,374,000
1991	1,117,000	0.035	1.99	36,700	1,702,000
1992	1,156,000	0.035	2.01	37,600	1,820,000

Area	Years	Holes	Meters
Historical Drilling
DeLamar	1966 - 1998	1,447	136,097
	not known	103	6,693
Florida Mountain	1972 - 1997	1,060	131,228
	not known	15	1,772
Total Historical		2,625	275,790

Integra Drilling
DeLamar	2018-2023	436	57,809
Florida Mountain	2018-2023	124	39,289
Total Integra Drilling		560	97098

Grand Total	1966 - 2023	3,185	372,888

Type	Lithology	Oxide	Mixed	Non-Oxide	No Ox Coding
Mineralized	All	2.34	2.50	2.55	-
Unmineralized	Colluvium	1.70	1.70	1.70	-
	Banded Rhyolite	2.22	2.22	2.22	-
	Sediments	1.84	1.84	2.02	1.84
	Porphyritic Rhyolite	2.20	2.35	2.35	2.28
	Tuff Breccia	2.15	2.15	2.22	-
	Quartz Latite	2.45	2.45	2.45	-
	Porphyritic Latite	2.38	2.38	2.38	-
	Lower Basalt	2.26	2.26	2.52	2.26
	unassigned	-	-	-	2.34

Domain	g Au/t	g Ag/t
100	~0.15 to ~1	~5 to ~30
200	~1 to ~6	~30 to ~200
300	> ~6	> ~200

Domain	g Au/t	No. of Samples Capped (% of samples)	g Ag/t	No. of Samples Capped (% of samples)
0	1	74 (<1%)	150	8 (<1%)
100	2.5	36 (<1%)	125	15 (<1%)
200	6	14 (<1%)	200	59 (<1%)
300	40	8 (3.0%)	1,325	29 (1.5%)

Estimation Pass - Au + Ag Domain	Search Ranges (meters)				Composite Constraints
	Major	Semi-Major		Minor	Min	Max		Max/Hole
Pass 1 + 2 - Doman 100	60	60		20	2	12		4
Pass 1 + 2 - Doman 200 + 300 + 0	60	60		20	2	20		4
Pass 3 - Doman 100	60	60		60	1	12		4
Pass 3 - Doman 0 + 200 +300	170	170		170	1	20		4

Restrictions on Search Ranges

Domain	Search Restriction Threshold		Search Restriction Distance				Estimation Pass
Au 100	>0.7 g Au/t		40 meters				1, 2
Au 300	>20 g Au/t		35 meters				1, 2, 3
Au 0	>0.5 g Au/t		6 meters				1, 2, 3
Ag 300	>400 g Ag/t		35 meters				1, 2, 3
Ag 0	>45 g Ag/t		6 meters				1, 2, 3

Domain	g Au/t	Number Capped (% of samples)	g Ag/t	Number Capped (% of samples)
0	5.0	4 (<1%)	300	5 (<1%)
100	4.0	4 (<1%)	90	9 (<1%)
200	9.0	5 (<1%)	250	4 (<1%)
300	75.0	14 (<1%)	1800	14 (1.5%)

Estimation Pass - Au + Ag Domain	Search Ranges (meters)				Composite Constraints
	Major	Semi-Major		Minor	Min	Max		Max/Hole
Pass 1 - Domain 100	60	60		12	3	16		4
Pass 1 - Domain 200 + 300 + 0	60	60		12	3	25		4
Pass 2 - Domain 100	120	120		40	1	16		4
Pass 2 - Domain 200 + 300 + 0	120	120		40	1	25		4

Restrictions on Search Ranges
Domain	Search Restriction Threshold		Search Restriction Distance				Estimation Pass
Au 300	>15 g Au/t		20 meters				1, 2
Au 0	>0.7 g Au/t		8 meters				1, 2
Ag 300	>450 g Ag/t		35 meters				1, 2
Ag 0	>30.0 g Ag/t		6 meters				1, 2

DeLamar Stockpile Area	Zone	g Au/t	g Ag/t	Florida Mtn Stockpile Area	Zone	g Au/t	g Ag/t
North DeLamar - SC Backfill	0	0.1	20	TipTop Backfill	0	0.35	10
	100	1.0	60		100	1.2	35
	200	2.7	140		200	2	40
DeLamar Stockpile #1	0	0.1	10	Jacobs Gulch	0	-	15
	100	1.0	65		100	1.3	60
	200	1.5	170		200	10	120
DeLamar Stockpile #2	0	0.1	10
	100	1.0	65
	200	1.5	170

DeLamar			Florida Mountain
Oxide	Mixed	Non-Oxide	Oxide	Mixed	Non-Oxide
161	171	85	118	132	88

Year	Heap-leach Ore									Mill Ore
	Florida Mountain			DeLamar			Total			Florida Mountain			DeLamar			Total
	kt	g/t Au	g/t Ag	kt	g/t Au	g/t Ag	kt	g/t Au	g/t Ag	kt	g/t Au	g/t Ag	kt	g/t Au	g/t Ag	kt	g/t Au	g/t Ag
PreProd	610	0.42	10.55				610	0.42	10.55
1	10,287	0.50	13.43				10,287	0.50	13.43
2	10,596	0.46	10.44	1,953	0.44	20.85	12,548	0.46	12.06
3	9,474	0.37	8.16	3,161	0.45	30.08	12,635	0.39	13.64	1078	1.09	15.57	904	0.54	77.47	1,982	0.84	43.80
4	10,993	0.42	11.76	79	0.30	12.10	11,072	0.42	11.77	1885	0.77	19.35	275	0.47	58.17	2,160	0.73	24.30
5	3,386	0.39	16.20	9,214	0.35	12.71	12,600	0.36	13.65	1863	0.67	19.56	297	0.62	53.40	2,160	0.67	24.21
6	15	0.33	24.54	12,585	0.38	18.50	12,600	0.38	18.51	926	0.38	8.00	1,234	0.89	28.74	2,160	0.67	19.85
7	348	0.16	11.22	10,566	0.32	21.91	10,914	0.31	21.57	558	0.28	6.74	1,608	0.54	47.40	2,166	0.48	36.94
8				6,325	0.29	33.16	6,325	0.29	33.16	445	0.28	6.74	1,715	0.46	54.19	2,160	0.43	44.41
9				997	0.19	44.62	997	0.19	44.62	492	0.28	6.74	1,668	0.52	47.50	2,160	0.47	38.21
10				296	0.46	24.02	296	0.46	24.02	740	0.28	6.74	1,420	0.43	42.39	2,160	0.38	30.18
11				450	0.60	57.84	450	0.60	57.84	346	0.28	6.74	1,819	0.60	63.44	2,166	0.55	54.37
12				259	0.70	77.92	259	0.70	77.92	379	0.28	6.74	1,781	0.74	61.76	2,160	0.66	52.11
13				176	0.79	77.57	176	0.79	77.57	300	0.28	6.74	1,860	0.78	67.77	2,160	0.72	59.28
14				170	0.74	78.07	170	0.74	78.07	307	0.28	6.74	1,853	0.86	66.58	2,160	0.78	58.07
15				200	0.61	74.82	200	0.61	74.82	277	0.28	6.74	1,889	0.78	60.26	2,166	0.71	53.41
16				103	0.48	71.64	103	0.48	71.64	302	0.28	6.74	1,858	0.68	55.00	2,160	0.62	48.25
17				0.008	0.78	143.5	0.008	0.78	143.5	656	0.28	6.74	506	0.43	23.45	1,162	0.35	14.01
Total or Average	45,708	0.43	11.40	46,533	0.36	23.10	92,241	0.40	17.30	10,555	0.53	12.26	20,688	0.65	55.52	31,243	0.61	40.91

Equipment	Number	Description	Installed kW
Primary Crusher	1	Gyratory Crusher, 42" x 65"; 152 mm (6-inch) OSS*	448
Secondary Crusher	1	Standard Head Cone Crusher; Metso MP1250 (o/e); CSS = 35 mm (1-3/8-inch)	933
Tertiary Crusher	2	Short Head Cone Crusher; Metso MP1250 (o/e); CSS = 19 mm (3/4-inch)	933 (each)
Secondary Screen	1	Inclined, Vibrating, Double Deck; 1,823 dMTPH (Flow Sheet); 3 m x 7.3 m) (10 ft x 24 ft) (est); Apertures: 76.2 mm (3 inches), 31.75 mm (1.25-inch)	112
Tertiary Screens	2	Inclined, Vibrating, Single Deck; 2,349 dMTPH (Flow Sheet); 3.66 m x 7.31 m (12 ft x 24ft) (est); Apertures: 21 mm (0.82-inch)	112 (each)
Primary Crusher Discharge Conveyor	1	2,278 dMTPH, 152 cm (60-inch) wide, 72.2 m (237 ft) long, 5.2 m (17 ft) lift	224
Coarse-Ore Stockpile Feed Conveyor	1	2,278 dMTPH, 152 cm (60-inch) wide, 285 m (934 ft) long, 24.4 m (80 ft) lift	746
Secondary Screen Feed Conveyor	1	1,823 dMTPH, 122 cm (48-inch) wide, 191.4 m (628 ft) long, 15.2 m (50 ft) lift	373
Transfer Conveyors	2	4,698 dMTPH, 122 cm (48-inch) wide, 192 m (630 ft) long, 3 m (10 ft lift; and 169 m (555 ft) long, 24.4 m(80 ft) lift	298 & 933
Crushing Circuit Product Transfer Conveyor	1	1,823 dMTPH, 122 cm (48-inch) wide, 247 m (810 ft) long, 6 m (20 ft) lift	261
Agglomeration Feed Conveyor	1	Batch Use, 1,823 dMTPH, 122 cm (48-inch) wide	75
Agglomerated Product Conveyor	1	Batch Use, 1,823 dMTPH, 122 cm (48-inch) wide	75
Agglomeration Drum	1	1,823 dMTPH; 3.66 m Dia x 12.2 m Length, Tire Driven; w/ VFD	261
*OSS = open-side setting; CSS = closed-side setting; o/e = or equivalent