Coeur Announces New Discovery at Silvertip; Details Exploration Success at Kensington and Palmarejo

Coeur Mining, Inc. (“Coeur” or the “Company”) (NYSE: CDE) today provided an update on the exploration programs at its Silvertip, Kensington and Palmarejo mines. The Company plans to invest approximately $40 million¹ in exploration this year, split evenly between capitalized infill and resource expansion drilling.

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Silvertip - Plan View (Graphic: Business Wire)

Coeur’s $240 million investment in exploration over the last five years has led to strong reserve and resource growth with multiple new discoveries and meaningful extensions to mine lives. Infill-focused drilling programs successfully replaced 1.8 million and 56.4 million ounces of cumulative gold and silver production, respectively, and added an additional 0.5 million ounces of gold and 85.4 million ounces of silver reserves. Expansion-focused drilling programs successfully added 1.8 million and 123.6 million ounces of measured and indicated gold and silver resources, respectively, and an additional 1.8 million and 29.3 million ounces of new inferred gold and silver resources, respectively.

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Key Highlights^2,3

• New discovery at Silvertip indicates significant growth potential immediately west of existing infrastructure – Surface and underground drilling led to the discovery of a new high-grade chimney west of the Camp Creek resource located at a shallower depth, called Camp Creek West. The first drill holes into the zone returned the highest grade-thickness assays at Silvertip to date. Notable results from the new zone include:
  
  Camp Creek West – Expansion

• Hole CCF21-PAD03-015 returned 39.4 feet (12.0 meters) of 13.4 ounces per ton (“oz/t”) (459.6 grams per tonne (“g/t”)) silver, 15.1% zinc and 8.7% lead
• Hole CCF21-PAD05-026 returned 20.3 feet (6.2 meters) of 22.7 oz/t (778.3 g/t) silver, 13.6% zinc, and 14.7% lead

• Kensington cuts significant high-grade gold in the uppermost portion of main ore body – Assay results from late 2021 along with recent drilling into the uppermost Kensington Zone 30 resulting in excellent grade thicknesses. In addition, drilling in early 2022 continues to expand the nearby Elmira and Jualin veins. Notable results include: