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Reserves and Resources

SSR Mining Inc. · SSRM document official

Proven and probable Mineral Reserves are based on extensive drilling, sampling, geological modeling, and metallurgical testing from which economic feasibility has been determined.

Briefing

Proven and probable Mineral Reserves are based on extensive drilling, sampling, geological modeling, and metallurgical testing from which economic feasibility has been determined. Key points: Proven and probable Mineral Reserves are based on extensive drilling, sampling, geological modeling, and metallurgical testing from which economic feasibility has been determined; At Santoy, Mineral Reserves are estimated using a cut-off grade of 2.93 g/t gold for production stopes, 1.86 g/t for marginal production stopes, and 1.30 g/t for development; At Porky West, Mineral Reserves are estimated using a cut-off grade of 3.24 g/t gold for production stopes, 2.09 g/t for marginal production stopes, and 1.00 g/t for development; Dilution intrinsic to the Mineral Reserves estimate is considered sufficient to represent the mining selectivity considered. (8) Seabee Mineral Reserves includes Santoy 8, Santoy 9, and Hanging Wall lodes. (9) Seabee Min; Marigold Mineral Reserves are reported at a cut-off grade of 0.069 g/t payable gold (gold assay factored for metallurgical recovery, royalty, and net proceeds); Marigold Mineral Reserves are reported at a cut-off grade of 0.069 g/t payable gold (gold assay factored for metallurgical recovery, royalty, and net proceeds). This brief is based on the cited source artifact and is intended as a research entry point, not a replacement for the original source or EGM canonical data tables.

Source Notes

Proven and probable Mineral Reserves are based on extensive drilling, sampling, geological modeling, and metallurgical testing from which economic feasibility has been...

Extractive summary evidence · source

At Santoy, Mineral Reserves are estimated using a cut-off grade of 2.93 g/t gold for production stopes, 1.86 g/t for marginal production...

Extractive summary evidence 2 · source

At Porky West, Mineral Reserves are estimated using a cut-off grade of 3.24 g/t gold for production stopes, 2.09 g/t for marginal...

Extractive summary evidence 3 · source

Dilution intrinsic to the Mineral Reserves estimate is considered sufficient to represent the mining selectivity considered. (8) Seabee Mineral Reserves includes Santoy...

Extractive summary evidence 4 · source

Extracted Document Text

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# Reserves and Resources

Source: https://www.ssrmining.com/_resources/pdfs/Reserves-and-Resources.pdf?v=0.03
Fetched: 2026-09-30T00:31:19.073+00:00
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Normalizer input: text

## Content

# Reserves and Resources
Mineral Reserve and Resource Tables
As of December 31, 2025
SSR MINING | PAGE 0
Mineral Reserves and Mineral Resources
The following information should be read in conjunction with Item 2. Properties in the Company’s Annual Report on Form 10-K for the year ended December 31, 2025 filed on
February 17, 2026 (the “Annual Report”) and the TRS for each of our material properties included as exhibits to our Annual Report.
SSR Mining reported its updated MRMR as of December 31, 2025, reflecting depletion that occurred through mining activity, stockpile changes, new Mineral Reserves and Mineral
Resources delineated through drilling activity, Mineral Resource conversion and changes to metals price assumptions used in the calculation of Mineral Reserves and Mineral
Resources. In addition, following the completion of Technical Report Summaries for CC&V and the Hod Maden development project, the Company is now able to incorporate these
properties into its consolidated MRMR statements.
As of year-end 2025, SSR Mining’s Mineral Reserves included 10.6 million ounces of gold and 24.2 million ounces of silver. On a gold equivalent basis, SSR Mining had 11.0
million ounces of Mineral Reserves, a 38% year-over-year increase inclusive of mined depletion.
As per Subpart 1300 of Regulation S-K, the Company’s year-end 2025 MRMR are presented on an attributable basis, reflecting the Company’s ownership interest in each material
property. See the Company’s Annual Report for more information.
Internal Controls over the Mineral Reserves and Mineral Resources Estimation Process
The Company has internal controls over the mineral reserves and mineral resources estimation processes that result in reasonable and reliable estimates aligned with industry practice
and reporting regulations. Annually, the Qualified Persons and other employees review the estimates of mineral reserves and mineral resources, the supporting documentation, and
compliance to the internal controls, and, based on their review of such information, recommend approval to use the mineral reserve and mineral resource estimates to our senior
management. The Company’s controls utilize management systems including but not limited to, formal quality assurance and quality control protocols, standardized procedures,
workflow processes, supervision and management approval, internal and external reviews and audits, reconciliations, and data security covering record keeping, chain of custody
and data storage.
The Company’s systems also cover exploration activities, sample preparation and analysis, data verification, mineral processing, metallurgical testing, recovery estimation, mine
design and sequencing, and mineral reserve and resource evaluations, with environmental, social and regulatory considerations. The Company’s quality assurance and control
protocols over sampling and assaying of drill hole samples include insertion of blind samples consisting of standards, blanks, and duplicates in the primary sample streams, as well
as selective sample validation at secondary laboratories.
These controls and other methods help to validate the reasonableness of the estimates. The effectiveness of the controls are reviewed periodically to address changes in conditions
and the degree of compliance with policies and procedures. Refer to Item 1A. Risk Factors in our Annual Report for discussion of risks associated with our estimates of mineral
reserves and mineral resources
SSR MINING | PAGE 1
Proven and Probable Reserve Estimates by Mineral
The following information about Çöpler is historical in nature and is as of February 13, 2024 only. As described in “Item 1. Business - Çöpler Incident” of our Annual Report, all
operations at Çöpler have ceased following the Çöpler Incident and we are unable to determine at this time when operations at Çöpler will resume, if at all. We have not determined
that, if we resume operations at Çöpler, the proven and probable reserve estimates by mineral for Çöpler presented below continues to be accurate or will be accurate at such time
as the Company resumes operations at Çöpler.
Proven and probable Mineral Reserves are based on extensive drilling, sampling, geological modeling, and metallurgical testing from which economic feasibility has been determined.
The price sensitivity of Mineral Reserves depends upon several factors including grade, metallurgical recovery, operating cost, waste-to-ore ratio and ore type. Metallurgical recovery
rates vary depending on the metallurgical properties of each deposit and the production process used. The Mineral Reserve tables below list the average metallurgical recovery rate
for each deposit, which takes into account the several different processing methods to be used. The cut-off grade, or lowest grade of mineralized material considered economic to
process, varies with material type, metallurgical recoveries and operating costs.
The proven and probable Mineral Reserves presented herein are estimates based on information available at the time of calculation. No assurance can be given that the indicated
levels of recovery of gold, silver, copper, lead, and zinc will be realized. Ounces of gold or silver, or pounds of copper, lead or zinc in the proven and probable Mineral Reserves are
calculated without regard to any losses during metallurgical treatment. Mineral Reserves estimates may require revision based on actual production experience. Market price
fluctuations of gold, silver, copper, lead, and zinc, as well as increased cost of sales or reduced metallurgical recovery rates, could render proven and probable Mineral Reserves
containing relatively lower grades of mineralization uneconomic to exploit and might result in a decrease in actual recovery as compared to the Mineral Reserves reported herein.
The Mineral Reserves presented below as of December 31, 2025 and December 31, 2024 have been prepared in accordance with the U.S. Securities and Exchange Commission
(“SEC”) Regulation S-K subpart 1300 rules for Property Disclosures for Mining Registrants (“S-K 1300”), and have been approved by the Qualified Persons. Mineral Reserves
metal prices used for preparation of the 2025 Reserve estimate, which were selected, in each case, by the Qualified Persons are: $1,700 per gold ounce, $20.50 per silver ounce,
$0.90 per lead pound, $1.15 per zinc pound, and $3.50 per copper pound unless otherwise stated. The Mineral Reserves metal price assumptions for 2024 report are: $1,500 per gold
ounce, $19.00 per silver ounce, $0.90 per lead pound, $1.05 per zinc pound and $3.30 per copper pound unless otherwise stated.
The point of reference for Mineral Reserves is the point of feed into the processing facility for all production projects except for Marigold and CC&V, which is entry into the carbon
columns in the processing facility.
Metals shown in the table are contained metals in ore mined and processed.
Tonnage is metric kilo tonnes (“kt”), ounces (“oz”) represent troy ounces, grade is grams per metric tonne (“g/t”), copper, lead and zinc grade are percent (“%”), and copper, lead
and zinc metal are in million pounds (“Mlbs”).
Figures may vary due to rounding.
The following tables summarize the Company’s estimated gold reserves attributable to SSR Mining’s ownership as of December 31, 2025 and December 31, 2024 for each of its
production and development assets.
SSR MINING | PAGE 2
Gold Reserves as of December 31, 2025
Proven Probable Proven and Probable
SSR Tonnage Grade Gold Tonnage Grade Gold Tonnage Grade Gold Metallurgical
Deposit Country Share (kt) (g/t) (koz) (kt) (g/t) (koz) (kt) (g/t) (koz) Recovery
Çöpler 80% 12,652 2.25 917 30,446 2.44 2,390 43,098 2.39 3,307 86 %
Türkiye
(OP)*(1)(2)(3)(4)(5)
Çöpler 80% — — — 10,389 2.07 692 10,389 2.07 692 90 %
Türkiye
(Stockpile)*(2)(3)(4)
United
Marigold (OP)(6)(7) 100% — — — 165,740 0.53 2,799 165,740 0.53 2,799 72 %
States
Marigold United
100% — — — 10,196 0.17 55 10,196 0.17 55 56 %
(Stockpile)(7) States
Marigold (Leach United
100% — — — 62,568 0.19 383 62,568 0.19 383 65 %
Pad Inventory) States
United
CC&V (OP)(8)(9) 100% 105,440 0.44 1,480 46,566 0.41 607 152,006 0.43 2,087 52 %
States
United
CC&V (Stockpile)(8) 100% — — — 68,205 0.26 564 68,205 0.26 564 47 %
States
Seabee (UG)(10)(11) Canada 100% 332 5.33 57 3,052 4.55 447 3,383 4.63 504 96 %
Seabee (Stockpile) Canada 100% 7 3.41 1 — — — 7 3.41 1 96 %
Hod Maden(12) Türkiye 10% 137 22.19 98 634 4.50 92 771 7.64 190 87 %
118,568 0.67 2,553 397,796 0.63 8,029 516,363 0.64 10,582
SSR MINING | PAGE 3
* Operations at Çöpler are currently suspended and we are unable to determine at this time when operations at Çöpler will resume, if at all. See Item 1. Business - Çöpler Incident in our Annual Report.
(1) Çöpler Mineral Reserves includes reserves from Çöpler Mine and Greater Çakmaktepe. There are no Mineral Reserves at Bayramdere.
(2) Çöpler Mineral Reserves shown are SSR Mining ownership share only. SSR Mining owns 80% of both Anagold and Kartaltepe licenses.
(3) Çöpler Mineral Reserves are based on a gold price of $1,450/oz. Metallurgical gold recoveries for grind leach varies between 53.0-90.0% based on lithology, and for sulfide varies between 81.0-91.0%. All cut-off values
include allowance for royalty payable. Grind leach uses a NSR cut-off value of $21.77/t, and sulfide ore uses a cut-off value of $45.58/t. Silver credits are not incorporated into NSR calculations.
(4) Çöpler ore definitions: oxide grind leach material is defined as material <2.0% total sulfur, and sulfide material is ≥2.0% total sulfur.
(5) Due to the Çöpler Incident, all oxide ore will be campaigned through the existing milling circuit bypassing the autoclaves. If the Grind-Leach facility is approved and completed, the Company will consider the value of
processing the oxide ore through such grind-leach circuit.
(6) Marigold Mineral Reserves includes reserves from Marigold Mine and Buffalo Valley.
(7) Marigold Mineral Reserves are based on a gold price of $1,700/oz. Marigold Mineral Reserves are reported at a cut-off grade of 0.069 g/t payable gold (gold assay factored for metallurgical recovery, royalty, and net
proceeds). Buffalo Valley cut-off grades ranges from 0.12 g/t – 0.72 g/t contained based on material types. No mining dilution is applied to the grade of the Mineral Reserves. Dilution intrinsic to the Mineral Reserves
estimate is considered sufficient to represent the mining selectivity considered.
(8) CC&V Mineral Reserves are reported at a cut-off grade for crush leach of 0.10g/t gold extractable cyanide soluble (factored for metallurgical recovery) and run of mine leach of 0.069 g/t gold extractable cyanide soluble
(factored for metallurgical recovery). No mining dilution is applied to the grade of the Mineral Reserves. Dilution intrinsic to the Mineral Reserves estimate is considered sufficient to represent the mining selectivity
considered.
(9) CC&V Mineral Reserves does not include leach pad inventory of 360 koz, which represents work-in-process gold and is 100% recoverable over the life of mine.
(10) Seabee Mineral Reserves includes Santoy 8, Santoy 9, Hanging Wall (“HW”) and Porky West lodes.
(11) Seabee Mineral Reserves are based on a gold price of $2,000/oz. At Santoy, Mineral Reserves are estimated using a cut-off grade of 2.93 g/t gold for production stopes, 1.86 g/t for marginal production stopes, and 1.30 g/t
for development. At Porky West, Mineral Reserves are estimated using a cut-off grade of 3.24 g/t gold for production stopes, 2.09 g/t for marginal production stopes, and 1.00 g/t for development. Processing recoveries
vary based on the feed grade. The average recovery is estimated to be 96.0%.
(12) Hod Maden is a development property. M

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