SSR Mining Reports Mineral Reserves and Resources For Year-End 2020

DENVER, March 30: SSR Mining Inc. (NASDAQ: SSRM) (TSX: SSRM) (ASX: SSR) ("SSR Mining") today reported its updated Mineral Reserves and Mineral Resources as of December 31, 2020. For a detailed summary by asset, please refer to the summary and tables below. Highlights: Track Record of Mineral Reserves Replacement: Gold Mineral Reserves increased 5% to 8.0 million ounces (9.0 million gold-equivalent ounces) as compared to year-end 2019 combined results for SSR Mining and Alacer Gold pre-merger, driven primarily by additions at Çöpler. Measured and Indicated Gold Mineral Resources Increased 14%: Gold Measured and Indicated Mineral Resources of 15.0 million ounces (27.0 million gold-equivalent ounces) resulting from increases at Marigold and in the Çöpler District. Çöpler District Mineral Reserves and Resources Growth: Mineral Reserves increased 17% to 3.8 million ounces of gold and Measured and Indicated Mineral Resources increased 20% to 7.2 million ounces of gold. Inclusion of results from the large drilling program at Ardich in the Çöpler District resulted in additions as outlined in the November 2020 Çöpler District Master Plan Studies ("CDMP20"). Marigold Increases Mineral Resources: Indicated Mineral Resources increased by 9% for a total of 5.4 million ounces of gold compared to 4.9 million ounces at year-end 2019. Mineral Resources increased at Mackay, Red Dot, New Millennium, Crossfire and Valmy. Seabee Mineral Reserves Replace Depletion: Despite a limited exploration program due to COVID-19, Seabee largely replaced Mineral Reserves for the year. The Gap HW Mineral Resources remain a key focus area for conversion to Mineral Reserves in 2021. Mineral Reserves and Mineral Resources At year-end 2020, total estimated gold and silver Mineral Reserves were 8.0 million ounces and 52.4 million ounces compared to 7.7 million ounces and 57.5 million ounces, respectively, at year-end 2019 (combined SSR Mining and Alacer Gold results pre-merger). At year-end 2020, total estimated gold and silver Measured and Indicated Mineral Resources were 15.0 million ounces and 658.5 million ounces compared to 13.2 million ounces and 664.2 million ounces, respectively, at year-end 2019 (combined SSR Mining and Alacer Gold results pre-merger). Mineral Reserves estimates for the Çöpler District, Marigold mine, the Seabee Gold Operation and Puna Operations have been determined based on prices of $1,350 per ounce of gold and $18.50 per ounce of silver. Mineral Resources estimates have been determined based on prices of $1,750 per ounce of gold and $22.00 per ounce of silver. Mineral Resources reported are inclusive of Mineral Reserves. Çöpler District For the Çöpler District, Mineral Reserves increased by 17% to 3.8 million ounces of gold (56.8 million tonnes at an average gold grade of 2.1 g/t) at year-end 2020. The increase is from the larger Çöpler pit design, reduction in oxide and sulfide cut-off grades due to the improved cost structure from the increased throughput provided by the sulfide circuit, reduced unit costs and increased gold price assumptions. Measured and Indicated Mineral Resources increased by 20% to 7.2 million ounces of gold (133.1 million tonnes at an average gold grade of 1.7 g/t) at year-end 2020. Mineral Resource additions included 418,000 ounces of gold at Ardich and 781,000 ounces at Çöpler. Inferred Mineral Resources increased by 58% to 3.1 million ounces of gold (73.7 million tonnes at an average gold grade of 1.3 g/t) at year-end 2020, compared to 2.0 million ounces of gold (41.8 million tonnes at an average gold grade of 1.5 g/t) at year-end 2019. A total of 221 diamond core holes were drilled in 2020 within the Çöpler District for a total of 46,459 meters. Marigold Mine At the Marigold mine, Mineral Reserves decreased slightly due to mining depletion and the focus of our exploration programs on growing Mineral Resources following a successful year of Mineral Resource to Reserve conversion in 2019. Mineral Reserves were 3.7 million ounces of gold (219.4 million tonnes at an average gold grade of 0.49 g/t) at year-end 2020, a decrease of 5% compared to the year-end 2019. For 2020, mining depletion was offset by increases in Mineral Reserves related to updated pit designs for Red Dot and Mackay and increased gold price assumptions. Leach pad inventory reduced by 7,000 ounces of gold for a total of 270,000 ounces contained at year-end 2020. Indicated Mineral Resources increased by 9% for a total of 5.4 million ounces of gold (340.7 million tonnes at an average gold grade of 0.47 g/t) at year-end 2020, compared to 4.9 million ounces (301.8 million tonnes at an average gold grade of 0.48 g/t) at year-end 2019. Areas of Mineral Resource additions included Mackay, Red Dot, New Millennium, Crossfire and Valmy. Inferred Mineral Resources increased to 334,000 ounces of gold (28.6 million tonnes at an average gold grade of 0.36 g/t) at year-end 2020, compared to 182,000 ounces of gold (16.2 million tonnes at an average gold grade of 0.35 g/t) at year-end 2019, due to definition in sections of Red Dot, New Millennium, Mackay, Valmy and Crossfire. A total of 109 reverse circulation holes were drilled in 2020 at Marigold for a total of 37,956 meters. Seabee Gold Operation At the Seabee Gold Operation exploration activities were impacted in 2020 due to the COVID-19 pandemic, limiting exploration during the year. Mineral Reserves totaled 493,000 ounces of gold (1.6 million tonnes at an average gold grade of 9.83 g/t) at year-end 2020, a decrease of 1% compared to year-end 2019. The slight decrease in Mineral Reserves is due to depletion at Santoy 8 and 9, offset by Mineral Resource to Reserve conversion at Santoy 8 and 9 and the Gap HW based on infill drilling. Measured and Indicated Mineral Resources totaled 1,003,000 ounces of gold (3.0 million tonnes at an average gold grade of 10.38 g/t) at year-end 2020, compared to 1,050,000 ounces (3.1 million tonnes at an average gold grade of 10.61 g/t) at year-end 2019. At year-end 2020, Inferred Mineral Resources totaled 507,000 ounces of gold (2.03 million tonnes at an average gold grade of 7.77 g/t) compared to 583,000 ounces of gold (2.13 million tonnes at an average gold grade of 8.50 g/t) at year-end 2019, with the majority of the decrease resulting from the upgrading of some of the Gap HW and Santoy 9 Inferred Resources to Measured and Indicated Mineral Resources. The Gap HW discovery now totals 26,445 ounces (111,000 tonnes at an average gold grade of 7.41 g/t) classified as Probable Mineral Reserves, 300,000 ounces (1.29 million tonnes at an average grade of 7.22 g/t) classified as Indicated Mineral Resources and an additional 167,000 ounces (0.75 million tonnes at an average gold grade of 6.91 g/t) classified as Inferred Mineral Resources. Mineral Resources and Reserves development drilling continues at Seabee in 2021 with a focus on Gap HW and the newly discovered adjacent Santoy hanging wall. A total of 198 diamond drill holes were drilled at Seabee in support of the 2020 resource update for a total of 39,678 meters. Puna Operations At Puna Operations, silver Mineral Reserves were 43.0 million ounces (8.4 million tonnes at an average silver grade of 159.7 g/t), a reduction of 6.7 million ounces as compared to year-end 2019, related to depletion of the Chinchillas open pit. All parameters including metal prices, cost and cut-off grade were kept the same as at year-end 2019. Measured and Indicated Mineral Resources totaled 100.3 million ounces of silver within the open pit, underground and stockpiles at both Chinchillas and Pirquitas at year-end 2020 compared to 110.7 million ounces at year-end 2019. Inferred Mineral Resources are estimated to total 42.2 million ounces (22.9 million tonnes at an average silver grade of 57 g/t) of silver at year-end 2020, compared to 42.7 million ounces (23.3 million tonnes at an average silver grade of 57 g/t) of silver at year-end 2019.