Coeur Mining, Inc. provided an update on exploration at its high-grade Silvertip polymetallic exploration project in northern British Columbia. Coeur completed approximately 90,000 feet (28,000 meters) of drilling in 2023 over 92 holes, 62 of which were in the Southern Silver Zone. Since acquisition of the project in late 2017, the Company has drilled roughly 1.1 million feet (333,000 meters) over 1,244 holes.

Highlights from surface and underground expansion drilling completed last year are reported below and continue to support Silvertip?s status as one of the world?s highest-grade, undeveloped carbonate replacement deposits. Key Highlights: Extremely high-grade intercept highlights continued growth of the Southern Silver Zone ? Results have been received for almost half of total 2023 drilling at the Southern Silver Zone, including the highest-grade intercept ever received in the zone.

Drillhole 65Z23-485-012-022,which assayed 16.1 feet at 36.8 ounces per ton (?oz/t?) (4.9 meters at 1,261.4 grams per tonne (g/t)) silver, 22.0 % lead and 22.4% zinc or 3,053 g/t on a silver equivalence basis; Strike of Southern Silver Zone increased by 150 meters and down dip extent by 160 meters ? Southern Silver Zone is the largest chimney structure discovered on the property to date and accounts for approximately 10% of Silvertip?s total measured and indicated resource and 55% of Silvertip?s total inferred resource as of year-end 2022.Additional notable drilled intercepts from Southern Silver Zone include: Hole 65Z22-485-010-030: 10.6 feet at 14.4 oz/t (3.2 meters at 492.0 g/t) silver, 5.9% lead and 8.1% zinc; Hole 65Z22-485-010-036: 29.8 feet at 3.5 oz/t (9.1 meters at 121.0 g/t) silver, 1.5% lead and 4.6% zinc; Hole 65Z23-485-012-004: 20.7 feet at 2.5 oz/t (6.3 meters at 87.0 g/t) silver, 1.1% lead and 10.8% zinc; Hole 65Z23-485-012-008: 9.5 feet at 16.6 oz/t (2.9 meters at 568.0 g/t) silver, 12.0% lead and 4.5% zinc; Hole 65Z23-485-012-021: 25.4 feet at 2.6 oz/t (7.7 meters at 88.0 g/t) silver, 0.8% lead and 7.2% zinc and 10.9 feet at 8.2 oz/t (3.3 meters at 282.0 g/t) silver, 3.5% lead and 16.7% zinc. Resource expansion activities and step-out drilling commenced in July 2023 with the goals of expanding the Southern Silver Zone (the largest chimney structure identified on the property so far) and infill drilling at Saddle Zone to incorporate it into year-end resource calculations. During the year, approximately 90,000 feet (28,000 meters) of drilling were completed over 92 holes.

Drilling into the Saddle Zone produced consistent, massive sulphide manto intercepts demonstrating the continuity of this new mineralized horizon. Assays are still pending from the Saddle Zone. Geological interpretation from both drilling and underground mine development has led to a new understanding of the geometries of manto and chimney mineralization and is forming the basis for a new Silvertip geological model expected to be completed in early 2024.

Between 2018 and 2023, the Company has invested roughly $60 million in exploration at the high-grade Silvertip deposit, leading to a near tripling of the total resource as of year-end 2022. A resource update based on 2023 drilling is expected to be included in Coeur?s year-end 2023 mineral resource and reserve update and will include a maiden estimate for the Saddle Zone. 2024 Exploration Programs: Exploration plans for 2024 are expected to include up to 115,000 feet (35,000 meters) of drilling along with extensive mapping and sampling during the summer field season.

The year has been kicked off with a technical review session, attended by consultant Dr. Peter Megaw who is helping guide exploration at Silvertip. Dr. Megaw is recognized as one of the world?s foremost experts on carbonate replacement deposits. Silvertip core samples will be on display at the AME Roundup in Vancouver, British Columbia on January 24-25.

Silvertip core will also be on display at other industry conferences in the first quarter of 2024, including the PDAC 2024 Convention in Toronto on March 3-6.