Biggest change(8) Rounding of short tons, grades, and troy ounces, as required by reporting guidelines, may result in apparent differences between tons, grades, and contained metal contents. 32 MINERAL RESOURCES Summary Gold Mineral Resources at End of the Fiscal Year Ended December 31, 2023 (1)(2)(3)(11) Measured Mineral Resources Indicated Mineral Resources Measured + Indicated Mineral Resources Inferred Mineral Resources Coeur Ownership Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Mexico Palmarejo Mine, Mexico (4) 100% 5,674 0.070 396 15,500 0.060 926 21,174 0.062 1,322 4,207 0.091 381 United States Rochester Mine, USA (7) 100% 110,460 0.002 200 27,170 0.002 47 137,630 0.002 247 135,104 0.002 267 Kensington Mine, USA (5) 100% 1,653 0.289 477 1,278 0.268 342 2,931 0.279 819 1,567 0.248 388 Wharf Mine, USA (6) 100% 1,666 0.024 40 22,150 0.021 458 23,816 0.021 498 7,125 0.021 149 Lincoln Hill Project, USA (9) 100% 4,642 0.012 58 27,668 0.011 306 32,310 0.011 364 22,952 0.011 255 Wilco Project, USA (10) 100% — — — — — — — — — 25,736 0.021 531 Total Gold 124,095 0.009 1,171 93,766 0.022 2,079 217,861 0.015 3,250 196,691 0.010 1,971 Summary Silver Mineral Resources at End of the Fiscal Year Ended December 31, 2023 (1)(2)(3)(11) Measured Mineral Resources Indicated Mineral Resources Measured + Indicated Mineral Resources Inferred Mineral Resources Coeur Ownership Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Mexico Palmarejo Mine, Mexico (4) 100% 5,674 4.56 25,875 15,500 3.85 59,701 21,174 4.04 85,576 4,207 4.50 18,933 United States Rochester Mine, USA (7) 100% 110,460 0.29 31,587 27,170 0.41 11,237 137,630 0.31 42,824 135,104 0.34 45,959 Lincoln Hill Project, USA (9) 100% 4,642 0.34 1,592 27,668 0.31 8,655 32,310 0.32 10,247 22,952 0.36 8,163 Wilco Project, USA (10) 100% — — — — — — — — — 25,736 0.13 3,346 Canada Silvertip Mine, Canada (8) 100% 734 10.56 7,749 6,418 7.78 49,919 7,152 8.06 57,668 2,345 6.86 16,084 Total Silver 121,510 0.55 66,803 76,756 1.69 129,512 198,266 0.99 196,315 190,344 0.49 92,485 Summary Zinc Mineral Resources at End of the Fiscal Year Ended December 31, 2023 (1)(2)(3)(11) Measured Mineral Resources Indicated Mineral Resources Measured + Indicated Mineral Resources Inferred Mineral Resources Coeur Ownership Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Canada Silvertip Mine, Canada (8) 100% 734 9.9 % 145,703 6,418 10.7 % 1,371,074 7,152 10.6 % 1,516,777 2,345 10.3 % 481,791 Summary Lead Mineral Resources at End of the Fiscal Year Ended December 31, 2023 (1)(2)(3)(11) Measured Mineral Resources Indicated Mineral Resources Measured + Indicated Mineral Resources Inferred Mineral Resources Coeur Ownership Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Canada Silvertip Mine, Canada (8) 100% 734 7.9 % 115,648 6,418 5.1 % 653,008 7,152 5.4 % 768,656 25,736 4.3 % 199,815 33 (1) Certain definitions: The term “resource” means that it is a concentration or occurrence of material of economic interest in or on the Earth’s crust in such form, grade or quantity that there are reasonable prospects for economic extraction.
Biggest changeMINERAL RESOURCES Summary Gold Mineral Resources at End of the Fiscal Year Ended December 31, 2024 (1)(2)(3)(11) Measured Mineral Resources Indicated Mineral Resources Measured + Indicated Mineral Resources Inferred Mineral Resources Coeur Ownership Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Mexico Palmarejo Mine, Mexico (4) 100% 6,996 0.068 474 15,368 0.062 949 22,363 0.064 1,423 6,577 0.098 643 Las Chispas Mine, Mexico (10) 100% 116 0.305 35 1,094 0.110 120 1,211 0.129 156 1,276 0.113 144 United States Rochester Mine, USA (7) 100% 82,371 0.002 144 40,402 0.003 116 122,773 0.002 260 116,521 0.002 258 Kensington Mine, USA (5) 100% 2,150 0.254 546 1,450 0.235 340 3,600 0.246 886 993 0.229 228 Wharf Mine, USA (6) 100% 10,180 0.017 175 49,155 0.017 845 59,335 0.017 1,019 26,735 0.018 470 Wilco Project, USA (9) 100% — — — — — — — — — 25,736 0.021 531 Total Gold 101,813 0.013 1,374 107,469 0.022 2,370 209,282 0.018 3,744 177,839 0.013 2,273 35 Summary Silver Mineral Resources at End of the Fiscal Year Ended December 31, 2024 (1)(2)(3)(11) Measured Mineral Resources Indicated Mineral Resources Measured + Indicated Mineral Resources Inferred Mineral Resources Coeur Ownership Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Mexico Palmarejo Mine, Mexico (4) 100% 6,996 4.59 32,138 15,368 3.76 57,777 22,363 4.02 89,915 6,577 5.28 34,748 Las Chispas Mine, Mexico (10) 100% 116 31.15 3,623 1,094 9.87 10,798 1,211 11.91 14,421 1,276 7.90 10,088 United States Rochester Mine, USA (7) 100% 82,371 0.28 23,383 40,402 0.34 13,541 122,773 0.30 36,924 116,521 0.36 41,838 Wilco Project, USA (9) 100% — — — — — — — — — 25,736 0.13 3,346 Canada Silvertip Mine, Canada (8) 100% 734 10.56 7,749 6,418 7.78 49,919 7,152 8.06 57,668 2,345 6.86 16,084 Total Silver 90,217 0.74 66,894 63,282 2.09 132,035 153,499 1.30 198,929 152,456 0.70 106,104 Summary Zinc Mineral Resources at End of the Fiscal Year Ended December 31, 2024 (1)(2)(3)(11) Measured Mineral Resources Indicated Mineral Resources Measured + Indicated Mineral Resources Inferred Mineral Resources Coeur Ownership Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Canada Silvertip Mine, Canada (8) 100% 734 9.9 % 145,703 6,418 10.7 % 1,371,074 7,152 10.6 % 1,516,777 2,345 10.3 % 481,791 Summary Lead Mineral Resources at End of the Fiscal Year Ended December 31, 2024 (1)(2)(3)(11) Measured Mineral Resources Indicated Mineral Resources Measured + Indicated Mineral Resources Inferred Mineral Resources Coeur Ownership Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Tons (000s) Grade (%) Pounds (000s) Canada Silvertip Mine, Canada (8) 100% 734 7.9 % 115,648 6,418 5.1 % 653,008 7,152 5.4 % 768,656 2,345 4.3 % 199,815 (1) Certain definitions: The term “resource” means that it is a concentration or occurrence of material of economic interest in or on the Earth’s crust in such form, grade or quantity that there are reasonable prospects for economic extraction.
The mineral estate to these 14 patented lode claims is owned by the State of Alaska, the mineral rights to which are secured by a State of Alaska upland mining lease. • The Company controls properties comprising the Jualin Group, under a lease agreement with Hyak Mining Company, which is valid until August 5, 2035 and thereafter, provided mining and production are actively occurring within and from the leased premises.
The mineral estate to these 14 patented lode claims is owned by the State of Alaska, the mineral rights to which are secured by a State of Alaska upland mining lease. • The Company controls properties comprising the Jualin Group, under a lease agreement with Hyak Mining Company (“Hyak”), which is valid until August 5, 2035 and thereafter, provided mining and production are actively occurring within and from the leased premises.
(8) Underground Mineral Resource estimates are reported using a net smelter return (“NSR”) cutoff of US$130/tonne. Mineral Resources are reported insitu using the following assumptions: The estimate use the following key input parameters: lead recovery of 89-90%, zinc recovery of 82-83% and silver recovery of 83-84%.
(8) Underground Mineral Resource estimates are reported using a net smelter return (“NSR”) cutoff of US$130/tonne. Mineral Resources are reported insitu using the following assumptions: The estimates use the following key input parameters: lead recovery of 89-90%, zinc recovery of 82-83% and silver recovery of 83-84%.
Stage: Production Location: Lead, South Dakota, USA Mine Type: Open Pit Heap Leach Metals/Mineralization: Gold and Silver by-product; a structurally controlled disseminated gold deposit Product: Electrolytic Cathodic Sludge 28 Ownership: 100% Land Position & Mineral Tenure • The Wharf Group is comprised of 362 patented lode claims, 35 government lots, 123 subdivided lots, and 59 federal unpatented lode claims.
Stage: Production Location: Lead, South Dakota, USA Mine Type: Open Pit Heap Leach Metals/Mineralization: Gold and Silver by-product; a structurally controlled disseminated gold deposit Product: Electrolytic Cathodic Sludge Ownership: 100% 30 Land Position & Mineral Tenure • The Wharf Group is comprised of 362 patented lode claims, 35 government lots, 123 subdivided lots, and 59 federal unpatented lode claims.
Coordinates for the project centroid are 44°20’03”N Latitude, 103°50’06”W Longitude and the Wharf Mine coordinates are 44°20’39”N Latitude, 103°51’02”W Longitude. All coordinates are in Universal Transverse Mercator (WSG 84). Access is established by paved road with power supplied by a local power company.
Coordinates for the project centroid are 44°20’03”N Latitude, 103°50’06”W Longitude and the Wharf Mine coordinates are 44°20’39”N Latitude, 103°51’02”W Longitude. All coordinates are in Universal Transverse Mercator (WGS 84). Access is established by paved road with power supplied by a local power company.
Changes to database entries are required to be documented; and • Database upload and verification procedures to ensure the accuracy and integrity of the data being entered into the project database(s). These are typically performed using software data-checking routines. Changes to database entries are required to be documented. Data are subject to regular backups.
Changes to database entries are required to be documented; and 33 • Database upload and verification procedures to ensure the accuracy and integrity of the data being entered into the project database(s). These are typically performed using software data-checking routines. Changes to database entries are required to be documented. Data is subject to regular backups.
The centroid location for the Rochester site is 400600 E, 4460300 N and the centroid of Rochester pit is located at 4002045 E, 4460050 N and Nevada Packard open pit is located at 400600 E, 4456675 E. All coordinates are in Universal Transverse Mercator (WSG 84), Zone 11T.
The centroid location for the Rochester site is 400600 E, 4460300 N and the centroid of Rochester pit is located at 4002045 E, 4460050 N and Nevada Packard open pit is located at 400600 E, 4456675 E. All coordinates are in Universal Transverse Mercator (WGS 84), Zone 11T.
All coordinates are in the Universal Transverse Mercator (WSG 84), Zone 12. Access to the property is provided by air, rail, and all-weather paved and gravel roads from the state capitol of Chihuahua.
All coordinates are in the Universal Transverse Mercator (WGS 84), Zone 12. Access to the property is provided by air, rail, and all-weather paved and gravel roads from the state capitol of Chihuahua.
(2) Mineral Resource estimates are reported exclusive of mineral reserves, are current as of December 31, 2023, are reported using definitions in Item 1300 of Regulation S-K and were prepared by the Company’s technical staff.
(2) Mineral Resource estimates are reported exclusive of mineral reserves, are current as of December 31, 2024, are reported using definitions in Item 1300 of Regulation S-K and were prepared by the Company’s technical staff.
Other: • A security interest in the Rochester mine has been granted in favor of the lenders under the RCF (as defined below) • Coeur Rochester is obligated to pay a net smelters return of up to 5% to ASARCO, the prior owner, when the average quarterly market price of silver equals or exceeds $29.79 per ounce indexed for inflation, with the condition that the Rochester mine achieves positive cash flow for the applicable year.
Other: • A security interest in the Rochester mine has been granted in favor of the lenders under the RCF (as defined below) • Coeur Rochester is obligated to pay a net smelters return of up to 5% to ASARCO, the prior owner, when the average quarterly market price of silver equals or exceeds $30.88 per ounce indexed for inflation, with the condition that the Rochester mine achieves positive cash flow for the applicable year.
(3) The Mineral Reserve estimates are current as of December 31, 2023, are reported using the definitions in Item 1300 of Regulation S-K and were prepared by the Company’s technical staff.
(3) The Mineral Reserve estimates are current as of December 31, 2024, are reported using the definitions in Item 1300 of Regulation S-K and were prepared by the Company’s technical staff.
Stage: Production Location: State of Chihuahua, Northern Mexico Mine Type: Underground Metals/Mineralization: Silver and Gold, classified as epithermal deposits and are hosted in multiple veins, breccias, and fractures Product: Doré Ownership: 100% Land Position: 67,279 net acres Mineral Tenure: 71 wholly-owned mining concessions 25 Key Permit Conditions: Authorizations are in place that regulate typical life of mine functions, including production facilities and utilities, mining operations, tailings and waste rock storage, exploration, surface disturbance, land use, vegetation and change in soil use, air emissions, water use, and reclamation.
Stage: Production Location: State of Chihuahua, Northern Mexico Mine Type: Underground Metals/Mineralization: Silver and Gold, classified as epithermal deposits and are hosted in multiple veins, breccias, and fractures Product: Doré Ownership: 100% Land Position: 74,119 net acres 27 Mineral Tenure: 96 wholly-owned mining concessions Key Permit Conditions: Authorizations are in place that regulate typical life of mine functions, including production facilities and utilities, mining operations, tailings and waste rock storage, exploration, surface disturbance, land use, vegetation and change in soil use, air emissions, water use, and reclamation.
Silver and gold, consisting of silver sulfosalt minerals, argentite, silver-bearing tetrahedrite and minor native gold, are contained in zones of multiple quartz veins and veinlets (vein, vein swarms and stockworks) with variable amounts of pyrite Product: Doré Ownership: 100% Land Position & Mineral Tenure Coeur Rochester lands, including the Lincoln Hill and related assets, consist of approximately 43,441 net acres • 1,465 owned and 347 leased Federal unpatented lode claims and 6 owned federal unpatented placer claims, appropriating approximately 29,942 net acres of public land; • 23 patented lode claims, consisting of approximately 392 acres; • Interests owned in approximately 6,929 gross acres of additional real property; and • Certain rights in and to approximately 6,182 acres, held either through lease, letter agreement or license. 26 Key Permit Conditions: The Rochester Mine has in place and operates subject to all necessary environmental permits and licenses from the appropriate local, state, and federal agencies for typical life of mine functions involving exploration, the open pit mines, heap leach pads, processing infrastructure, and all necessary support facilities.
Silver and gold, consisting of silver sulfosalt minerals, argentite, silver-bearing tetrahedrite and minor native gold, are contained in zones of multiple quartz veins and veinlets (vein, vein swarms and stockworks) with variable amounts of pyrite Product: Doré Ownership: 100% Land Position & Mineral Tenure Coeur Rochester lands, including the Lincoln Hill and related assets, consist of approximately 46,272 net acres • 1,465 owned and 358 leased Federal unpatented lode claims and 6 owned federal unpatented placer claims, appropriating approximately 29,982 net acres of public land; • 23 patented lode claims, consisting of approximately 392 acres; • Interests owned in approximately 9,327.8 gross acres of additional real property; and • Certain rights in and to approximately 6,182 acres, held either through lease, letter agreement or license. 28 Key Permit Conditions: The Rochester Mine has in place and operates subject to all necessary environmental permits and licenses from the appropriate local, state, and federal agencies for typical life of mine functions involving exploration, the open pit mines, heap leach pads, processing infrastructure, and all necessary support facilities.
Product: Gold Concentrate Ownership: 100% 27 Land Position & Mineral Tenure • The Kensington Group, totaling approximately 3,972 net acres, consists of 51 patented lode and patented mill site claims comprising approximately 766 net acres, 298 Federal unpatented lode claims covering approximately 3,222 net acres, and 13 State of Alaska mining claims covering approximately 95 net acres. • The Jualin Group, totaling approximately 8,366 net acres, is comprised of 23 patented lode and patented mill site claims covering approximately 388 net acres, 444 Federal unpatented lode claims and 75 Federal unpatented mill site claims appropriating approximately 7,814 net acres, a State of Alaska upland mining lease comprising approximately 682 acres, one State of Alaska mining claim comprising approximately three acres and four State-selected mining claims covering approximately 60 acres. • 14 of the 23 patented lode claims cover private surface estate only.
Product: Gold Concentrate Ownership: 100% 29 Land Position & Mineral Tenure • The Kensington Group, totaling approximately 3,972 net acres, consists of 51 patented lode and patented mill site claims comprising approximately 766 net acres, 298 Federal unpatented lode claims covering approximately 3,222 net acres, and 13 State of Alaska mining claims covering approximately 95 net acres. • The Jualin Group, totaling approximately 8,531 net acres, is comprised of 23 patented lode and patented mill site claims covering approximately 388 net acres, 452 Federal unpatented lode claims and 75 Federal unpatented mill site claims appropriating approximately 7,979 net acres, a State of Alaska upland mining lease comprising approximately 682 acres, one State of Alaska mining claim comprising approximately three acres and four State-selected mining claims covering approximately 60 acres. • 14 of the 23 patented lode claims cover private surface estate only.
Silver price of US$20/oz, gold price of US$1,400/oz. Average oxide and sulfide gold recovery is 70%, average carbonaceous gold recovery is 50%. Average oxide and sulfide gold recovery is 60%. Average carbonaceous silver recovery is 50%. Open pit mining cost is US$1.50/ton, processing and processing and G&A cost is US$5.46/ton; average pit slope angles of 50º.
Average oxide and sulfide gold recovery is 70%, average carbonaceous gold recovery is 50%. Average oxide and sulfide gold recovery is 60%. Average carbonaceous silver recovery is 50%. Open pit mining cost is US$1.50/ton, processing and processing and G&A cost is US$5.46/ton; average pit slope angles of 50º.
(7) Mineral Resource estimates are tabulated within a confining pit shell and use the following input parameters: Rochester oxide variable recovery Au = 77.7–85.9% and Ag = 59.4%; Rochester sulfide variable recovery Au = 15.2–77.7% and Ag = 0.0–59.4%; with a net smelter return cutoff of $3.01/st oxide and US$3.11/st sulfide; Nevada Packard oxide recovery Au = 92.0% and Ag = 61.0%; with a net smelter return cutoff of $5.51/st for oxide, where the NSR is calculated as resource net smelter return (NSR) = silver grade (oz/ton) * silver recovery (%) * (silver price ($/oz) - refining cost ($/oz)) + gold grade (oz/ton) * gold recovery (%) * (gold price ($/oz) - refining cost ($/oz)); variable pit slope angles that approximately average 48º over the life-of-mine.
(7) Mineral Resource estimates are tabulated within a confining pit shell and use the following input parameters: Rochester oxide variable recovery Au = 77.7–85.9% and Ag = 59.4%; Rochester sulfide variable recovery Au = 15.2–77.7% and Ag = 0.0–59.4%; with a net smelter return cutoff of $3.76/ton 36 oxide and US$3.86/ton sulfide; Nevada Packard oxide recovery Au = 92.0% and Ag = 61.0%; with a net smelter return cutoff of $4.24/ton for oxide; Lincoln Hill oxide recovery Au = 63.9% and Ag = 39.5%; with a net smelter return cutoff of $4.53/ton for oxide, where the NSR is calculated as resource net smelter return (NSR) = silver grade (oz/ton) * silver recovery (%) * (silver price ($/oz) - refining cost ($/oz)) + gold grade (oz/ton) * gold recovery (%) * (gold price ($/oz) - refining cost ($/oz)); variable pit slope angles that approximately average 48º over the life-of-mine.
In total, the Silvertip mine covers an area of approximately 40,904 hectares (101,076 acres) Other: • Suspended operating activities in February 2020; ongoing exploration and technical work to evaluate and support a potential expansion and restart • Silvertip is obligated to pay a 2.5% net smelter return royalty payable to the royalty holder on all mineral products produced from the Silvertip property, payable quarterly. • Silvertip is party to an agreement with the Kaska Nation which, among other things, provides for annual payments to the Kaska Nation calculated based on the financial performance of the Silvertip property and the average price of silver for the relevant calendar year.
In total, the Silvertip mine covers an area of approximately 51,507 hectares (127,276 acres) Other: • Suspended operating activities in February 2020; ongoing exploration and technical work to evaluate and support a potential future operation • Silvertip is obligated to pay a 2.5% net smelter return royalty payable to Triple Flag on all mineral products produced from the Silvertip property, payable quarterly. • Silvertip is party to an agreement with the Kaska Nation which, among other things, provides for annual payments to the Kaska Nation calculated based on the financial performance of the Silvertip property and the average price of silver for the relevant calendar year.
These technical statements include evaluation of modifying and technical factors, incorporate available reconciliation data, and are based on a cashflow analysis; and • Internal reviews of block models, mineral resources and mineral reserves using a “layered responsibility” approach with Qualified Person involvement at the site and corporate levels. 30 Internal controls are discussed where required in the relevant chapters of the technical report summary.
These technical statements include evaluation of modifying and technical factors, incorporate available reconciliation data, and are based on a cashflow analysis; and • Internal reviews of block models, mineral resources and mineral reserves using a “layered responsibility” approach with qualified person involvement at the site and corporate levels.
Mineral resources and mineral reserves are estimates that contain inherent risk and depend upon geologic interpretation and statistical inferences drawn from drilling and sampling analysis, which may prove to be unreliable.
Mineral resources and mineral reserves are estimates that contain inherent risk and depend upon geologic interpretation and statistical inferences drawn from drilling and sampling analysis, which may prove to be unreliable. See “Item 1A - Risk Factors” for additional information.
(7) Mineral Reserve estimates use the following key input parameters: assumption of conventional open pit mining; reported above a gold cut-off grade of 0.010 oz/ton Au; average metallurgical recovery assumption of 79.0%; royalty burden of US$64/oz Au; pit slope angles that vary from 34–50º; mining costs of US$2.44/ton mined, process costs of US$11.71/ton processed (includes general and administrative costs).
(7) Mineral Reserve estimates use the following key input parameters: assumption of conventional open pit mining; reported above a gold cut-off grade of 0.010 oz/ton Au; average metallurgical recovery assumption of 78.0%; royalty burden of US$140.40/oz Au; pit slope angles that vary from 34–50º; mining costs of US$2.56/ton mined, process costs of US$12.02/ton processed (includes general & administrative and sustaining capital costs).
(6) Mineral Resource estimates use the following key input parameters: assumption of conventional open pit mining; reported above a gold cut-off grade of 0.010 oz/ton Au; average metallurgical recovery assumption of 79.0% across all rock types; royalty burden of US$72/oz Au; pit slope angles that vary from 34–50º; mining costs of $2.44/ton mined, process costs of US$11.71/ton processed (includes general and administrative costs).
(6) Mineral Resource estimates use the following key input parameters: assumption of conventional open pit mining; reported above a gold cut-off grade of 0.008 oz/ton Au; average metallurgical recovery assumption of 78.0% across all rock types; royalty burden of US$140.40/oz Au; pit slope angles that vary from 34–50º; mining costs of $2.56/ton mined, process costs of US$12.02/ton processed (includes general & administrative and sustaining capital costs).
The following sub-sections summarize the types of procedures, protocols, guidance and controls that Coeur has in place for its exploration and mineral resource and reserve estimation efforts, and the type of risk assessments that are undertaken.
Internal controls are discussed where required in the relevant chapters of the technical report summary. The following sub-sections summarize the types of procedures, protocols, guidance and controls that Coeur has in place for its exploration and mineral resource and reserve estimation efforts, and the type of risk assessments that are undertaken.
(3) Assumed metal prices for 2023 estimated Mineral Resources were $25.00 per ounce of silver, $1,800 per ounce of gold, $1.30 per pound of zinc, $1.00 per pound of lead, unless otherwise noted.
(3) Assumed metal prices for 2024 estimated Mineral Resources were $27.00 per ounce of silver, $2,100 per ounce of gold, $1.30 per pound of zinc, $1.00 per pound of lead, unless otherwise noted.
(5) Mineral Resource estimates use the following key input parameters: metal price of $2,000 per ounce gold, assumption of conventional longhole underground mining; reported above a variable gold cut-off grade of 0.124 oz/ton Au; metallurgical recovery assumption of 93.5%; gold payability of 97.5%, mining costs of US$103.67/ton mined; process costs of US$55.06/ton processed; general and administrative costs of US$55.37/ton processed; Sustaining capital US$4.50/ton processed; and concentrate refining and shipping costs of US$108.67/oz sold.
(5) Mineral Resource estimates use the following key input parameters: metal price of $2,300 per ounce gold, assumption of conventional longhole underground mining; reported above a variable gold cut-off grade of 0.115 oz/ton Au; metallurgical recovery assumption of 94.2%; gold payability of 97.5%, mining costs of US$116.09/ton mined; process costs of US$55.14/ton processed; general and administrative costs of US$53.18/ton processed; Sustaining capital US$4.50/ton processed; and concentrate refining and shipping costs of US$97.48/oz sold.
Kensington is currently undertaking a planned expansion under POA 1, which would increase tailings and waste rock storage capacity to support an expected longer mine life, reflecting positive exploration results, improved metal prices and ongoing operational efficiencies.
Kensington has completed the planned expansion under POA 1, which increased tailings and waste rock storage capacity to support an expected longer mine life, reflecting positive exploration results, improved metal prices and ongoing operational efficiencies.
(4) Mineral Reserve estimates use the following key input parameters: assumption of conventional longhole underground mining; reported above a variable gold equivalent cut-off grade that ranges from 2.11–2.97 g/t AuEq and an incremental development cut-off grade ranging from 1.16–1.55 g/t AuEq; metallurgical recovery assumption of 92.0% for gold and 83.0% for silver; mining dilution assumes 0.4–1.1 meter of hanging/foot wall waste dilution; mining loss of 15% was applied; variable mining costs that range from US$44.72–US$85.71/tonne, surface haulage costs of US$4.92/tonne, process costs of US$32.70/tonne, general and administrative costs of US$14.06/tonne, and surface/auxiliary support costs of US$3.18/tonne.
(4) Mineral Reserve estimates use the following key input parameters: assumption of conventional longhole underground mining; reported above a variable gold equivalent cut-off grade that ranges from 2.13–2.45 g/t AuEq and an incremental development cut-off grade 1.05 g/t AuEq; metallurgical recovery assumption of 92.0% for gold and 83.0% for silver; mining dilution assumes 0.3–1.5 meter of hanging/foot wall waste dilution; mining loss of 15% was applied; variable mining costs that range from US$57.67–US$74.45/tonne, surface haulage costs of US$4.29/tonne, process costs of US$31.06/tonne, general and administrative costs of US$15.95/tonne, and surface/auxiliary support costs of US$4.42/tonne.
Ore is mined using conventional open pit methods, with gold and silver recovered by heap leaching of crushed open-pit ore placed on pads located within the Rochester mining area. Rochester is currently undergoing commissioning and ramp-up of an expansion under POA 11.
Ore is mined using conventional open pit methods, with gold and silver recovered by heap leaching of crushed open-pit ore placed on pads located within the Rochester mining area. Rochester completed the ramp-up and expansion of the operation in 2024.
Therefore the 2018 Mineral Resource is considered current and is presented unchanged. (10) Open Pit Mineral Resource estimates are reported using an equivalent gold cutoff of 0.20 ounces per ton assuming a silver to gold ratio of 60:1. Resources are reported in-situ and contained withed a conceptual measured, indicated and inferred optimized pit shell.
(9) Open Pit Mineral Resource estimates are reported using an equivalent gold cutoff of 0.20 ounces per ton assuming a silver to gold ratio of 60:1. Resources are reported in-situ and contained withed a conceptual measured, indicated and inferred optimized pit shell. Silver price of US$20/oz, gold price of US$1,400/oz.
OPERATING STATISTICS Palmarejo Rochester 2023 2022 2021 2023 2022 2021 Gold produced (oz.) 100,605 106,782 109,202 38,775 34,735 27,051 Silver produced (oz.) 6,591,590 6,708,689 6,820,589 3,391,530 3,061,924 3,158,017 Kensington Wharf 2023 2022 2021 2023 2022 2021 Gold produced (oz.) 84,789 109,061 121,140 93,502 79,768 91,136 MINERAL RESERVES AND MINERAL RESOURCES Internal Controls The Company’s internal controls are designed to provide reasonable assurance that information and processes utilized in assessing its exploration results as well as mineral resource and reserve estimation are reasonable and in line with industry best practices.
OPERATING STATISTICS Palmarejo Rochester 2024 2023 2022 2024 2023 2022 Gold produced (oz.) 108,666 100,605 106,782 39,203 38,775 34,735 Silver produced (oz.) 6,779,659 6,591,590 6,708,689 4,377,847 3,391,530 3,061,924 32 Kensington Wharf 2024 2023 2022 2024 2023 2022 Gold produced (oz.) 95,671 84,789 109,061 98,042 93,502 79,768 MINERAL RESERVES AND MINERAL RESOURCES Internal Controls The Company’s internal controls are designed to provide reasonable assurance that information and processes utilized in assessing its exploration results as well as mineral resource and reserve estimation are reasonable and in line with industry best practices.
(4) Mineral Resource estimates use the following key input parameters: Assumption of conventional longhole underground mining; reported above a variable gold equivalent cut-off grade that ranges from 1.87–2.64 g/t AuEq; metallurgical recovery assumption of 92.0% for gold and 83.0% for silver; variable mining costs that range from US$44.72–US$85.71/tonne, surface haulage costs of US$4.92/tonne, process costs of US$32.70/tonne, general and administrative costs of US$14.06/tonne, and surface/auxiliary support costs of US$3.18/tonne.
(4) Mineral Resource estimates use the following key input parameters: Assumption of conventional longhole underground mining; reported above a variable gold equivalent cut-off grade that ranges from 1.83–2.10 g/t AuEq; metallurgical recovery assumption of 92.0% for gold and 83.0% for silver; variable mining costs that range from US$57.67–US$74.45/tonne, surface haulage costs of US$4.29/tonne, process costs of US$31.06/tonne, general and administrative costs of US$15.95/tonne, and surface/auxiliary support costs of US$4.42/tonne.
(2) Assumed metal prices for 2023 Mineral Reserves were $21.00 per ounce of silver, $1,600 per ounce of gold, $1.15 per pound of zinc, $0.95 per pound of lead, except for Kensington at $1,850 per ounce of gold.
(2) Assumed metal prices for 2024 Mineral Reserves were $23.50 per ounce of silver, $1,800 per ounce of gold, $1.15 per pound of zinc, $0.95 per pound of lead, except for Kensington at $2,000 per ounce of gold.
Lead concentrate grade of 53-54%; zinc concentrate grade of 56-57%; mining costs of US$68.77/tonne; processing costs of US$58.20/tonne and US$46.49/tonne, where the NSR ($/tonne) = tonnes x grade x metal prices x metallurgical recoveries – royalties – TCRCs – transport costs over the life of the mine.
Lead concentrate grade of 53-54%; zinc concentrate grade of 56-57%; mining costs of US$68.77/tonne; processing costs of US$58.20/tonne and US$46.49/tonne, where the NSR ($/tonne) = tonnes x grade x metal prices x metallurgical recoveries – royalties – TCRCs – transport costs over the life of the mine. 2023 metal prices were used to determine the mineral resource which were $25.00 per ounce of silver, $1.30 per pound of zinc, $1.00 per pound of lead.
This royalty encumbers the mineral estate, including the Precambrian Mineral Estate, of much of the lands held by Wharf. • Wharf is party to other royalty agreements for which there are no mineral resources or mineral reserves associated with them in the current life-of-mine plan EXPLORATION PROJECTS Canada (British Columbia) — Silvertip The Silvertip silver-zinc-lead exploration property owned by our wholly-owned subsidiary, Coeur Silvertip Ltd.
This royalty encumbers the mineral estate, including the Precambrian Mineral Estate, of much of the lands held by Wharf. • Wharf is party to other royalty agreements for which there are no mineral resources or mineral reserves associated with them in the current life-of-mine plan.
Therefore the 2018 Mineral Resource report is considered current and is presented unchanged. (11) Rounding of short tons, grades, and troy ounces, as required by reporting guidelines, may result in apparent differences between tons, grades, and contained metal contents.
(11) Rounding of short tons, grades, and troy ounces, as required by reporting guidelines, may result in apparent differences between tons, grades, and contained metal contents.
Stage: Exploration Location: Northern British Columbia, Canada (10 miles south of the Yukon Territory Border) Mine Type: Underground Metals/Mineralization: Silver, Zinc and Lead; carbonate-hosted massive sulfide deposit Product: Concentrate Ownership: 100% 29 Land Position & Mineral Tenure: • Sixty-six (66) contiguous mineral claims containing approximately 39,375 hectares (97,298 acres) and two mining leases containing approximately 1,528 hectares (3,777 acres).
Stage: Exploration Location: Northern British Columbia, Canada (10 miles south of the Yukon Territory Border) Mine Type: Underground Metals/Mineralization: Silver, Zinc and Lead; carbonate-hosted massive sulfide deposit Product: Concentrate Ownership: 100% Land Position & Mineral Tenure: • Seventy-Three (73) contiguous mineral claims containing approximately 48,998 hectares (121,076 acres), three mining leases containing approximately 1,828 hectares (4,517 acres), and approximately 681 hectares (1,683 acres) under an option agreement entered into November 2024.
(5) Mineral Reserve estimates are tabulated within a confining pit design and use the following input parameters: Rochester oxide variable recovery Au = 77.7–85.9% and Ag = 59.4-61.0%; Rochester sulfide variable recovery Au = 15.2–77.7% and Ag = 0.0–59.4%; with a net smelter return cutoff of $3.01/st oxide and US$3.11/st sulfide; Nevada Packard oxide recovery Au = 92.0% and Ag = 61.0%; with a net smelter return cutoff of $5.51/st for oxide, where the NSR is calculated as resource net smelter return (NSR) = silver grade (oz/ton) * silver recovery (%) * (silver price ($/oz) - refining cost ($/oz)) + gold grade (oz/ton) * gold recovery (%) * (gold price ($/oz) - refining cost ($/oz)); variable pit slope angles that approximately average 48º over the life-of-mine.
(5) Mineral Reserve estimates are tabulated within a confining pit design and use the following input parameters: Rochester oxide variable recovery Au = 77.7–85.9% and Ag = 59.4-61.0%; Rochester sulfide variable recovery Au = 15.2–77.7% and Ag = 0.0–59.4%; with a net smelter return cutoff of $3.76/ton oxide and US$3.86/ton sulfide; Nevada Packard oxide recovery Au = 92.0% and Ag = 61.0%; with a net smelter return cutoff of $4.24/ton for oxide; Lincoln Hill oxide recovery Au = 63.9% and Ag = 39.5%; with a net smelter return cutoff of $4.53/ton for oxide where the NSR is calculated as resource net smelter return (NSR) = silver grade (oz/ton) * silver recovery (%) * (silver price ($/oz) - refining cost ($/oz)) + gold grade (oz/ton) * gold recovery (%) * (gold price ($/oz) - refining cost ($/oz)); variable pit slope angles that approximately average 48º over the life-of-mine (6) Mineral Reserve estimates use the following key input parameters: assumption of conventional underground mining; gold price of $2,000/oz; reported above a gold cut-off grade of 0.133 oz/ton Au; metallurgical recovery assumption of 94.2%; gold payability of 97.5%; mining dilution of 15-20%; mining loss of 12% was applied; mining costs of US$116.09/ton mined; process costs of US$55.14/ton processed; general and administrative costs of US$53.18/ton processed; sustaining capital US$4.50/ton processed; and concentrate refining and shipping costs of US$97.48/oz sold.
The royalty ranges from a rate of 1% at $400/oz gold prices to a maximum of 2.5% rate at gold prices above $475/oz. • Coeur Alaska is obligated to pay Hyak Mining Company (“Hyak”) annually, during the initial term of the mining lease, an advance minimum royalty of $231,000, which amount is adjusted every three years in accordance with changes in the Consumer Price Index as published by the U.S.
(“Triple Flag”) a net returns royalty on up to two million troy ounces of gold produced from the current boundaries of the Kensington mine at a rate of: (i) 1.25% for production occurring from January 1, 2024 through December 31, 2026 and (ii) 1.5% for production occurring on or after January 1, 2027. • Coeur Alaska is obligated to pay Hyak annually, during the initial term of the mining lease, an advance minimum royalty of $231,000, which amount is adjusted every three years in accordance with changes in the Consumer Price Index as published by the U.S.
The expansion project included the construction of a new leach pad, a crushing facility equipped with two high-pressure grinding roll units and a prescreen, a Merrill-Crowe process plant, and related infrastructure to support the extension of Rochester’s mine life. Commissioning and ramp-up are expected to be completed in the first half of 2024.
This project included the construction of a new leach pad, a three-stage crushing facility, a Merrill-Crowe process plant, and related infrastructure to support the extension of Rochester’s mine life.
Monitoring programs are in place, and there is an approved reclamation and closure plan that reflects current mining, mitigation, and site facilities.
Monitoring programs are in place, and there is an approved reclamation and closure plan that reflects current mining, mitigation, and site facilities. Other: • A security interest in the Kensington mine has been granted in favor of the lenders under the RCF. • Coeur Alaska is obligated to pay a subsidiary of Triple Flag Precious Metals Corp.
See Risk Factors in Item 1A for additional information. 31 MINERAL RESERVES Summary Gold Mineral Reserves at End of the Fiscal Year Ended December 31, 2023 (1)(2)(3)(8) Proven Mineral Reserves Probable Mineral Reserves Total Mineral Reserves Coeur Ownership Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Mexico Palmarejo (4) 100% 4,203 0.060 252 8,580 0.060 517 12,783 0.060 769 United States Rochester (5) 100% 465,919 0.002 1,135 44,524 0.002 104 510,443 0.002 1,239 Kensington (6) 100% 1,009 0.186 188 1,109 0.201 223 2,118 0.194 411 Wharf (7) 100% 5,931 0.032 188 21,318 0.027 575 27,249 0.028 763 Total Gold 477,062 0.004 1,763 75,531 0.019 1,419 552,593 0.006 3,182 Summary Silver Mineral Reserves at End of the Fiscal Year Ended December 31, 2023 (1)(2)(3)(8) Proven Mineral Reserves Probable Mineral Reserves Total Mineral Reserves Coeur Ownership Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Mexico Palmarejo (4) 100% 4,203 4.21 17,698 8,580 3.88 33,283 12,783 3.99 50,981 United States Rochester (5) 100% 465,919 0.38 177,472 44,524 0.35 15,413 510,443 0.38 192,885 Total Silver 470,122 0.42 195,170 53,104 0.92 48,696 523,226 0.47 243,866 (1) Certain definitions: The term “reserve” means that part of a mineral deposit that can be economically and legally extracted or produced at the time of the reserve determination.
MINERAL RESERVES Summary Gold Mineral Reserves at End of the Fiscal Year Ended December 31, 2024 (1)(2)(3)(9) Proven Mineral Reserves Probable Mineral Reserves Total Mineral Reserves Coeur Ownership Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Mexico Palmarejo (4) 100% 3,473 0.059 205 8,373 0.057 475 11,845 0.057 681 Las Chispas (8) 100% 787 0.150 118 2,700 0.088 239 3,486 0.102 357 United States Rochester (5) 100% 468,432 0.002 1,116 59,123 0.003 182 527,555 0.002 1,298 Kensington (6) 100% 1,340 0.186 249 1,427 0.177 252 2,768 0.181 501 Wharf (7) 100% 6,563 0.030 199 22,993 0.024 558 29,556 0.026 757 Total Gold 480,595 0.004 1,887 94,615 0.018 1,706 575,211 0.006 3,593 Summary Silver Mineral Reserves at End of the Fiscal Year Ended December 31, 2024 (1)(2)(3)(9) Proven Mineral Reserves Probable Mineral Reserves Total Mineral Reserves Coeur Ownership Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Tons (000s) Grade (oz./ton) Ounces (000s) Mexico Palmarejo (4) 100% 3,473 3.94 13,667 8,373 3.86 32,307 11,845 3.88 45,974 Las Chispas (8) 100% 787 16.00 12,586 2,700 7.75 20,931 3,486 9.61 33,516 United States Rochester (5) 100% 468,432 0.37 172,408 59,123 0.32 18,632 527,555 0.36 191,040 Total Silver 472,691 0.42 198,660 70,195 1.02 71,870 542,887 0.50 270,530 34 (1) Certain definitions: The term “reserve” means that part of a mineral deposit that can be economically and legally extracted or produced at the time of the reserve determination.