Coeur Provides Silvertip Exploration Update

Coeur Mining, Inc. (“Coeur” or the “Company”) (NYSE: CDE) today provided plans for a sustained 24-month exploration program beginning July 1, 2023 at its expanding high-grade Silvertip polymetallic exploration project in northern British Columbia. The program is designed to (i) enable better understanding of the overall mineralizing system, (ii) discover all mineralization styles (i.e., skarn and/or porphyry) on the property, (iii) expand the resource base, and (iv) assess the potential footprint and upside of the larger land package, 95% of which remains to be explored.

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Figure 1: Location of Silvertip Project (Graphic: Business Wire)

Key Highlights

• Grades continue to be among the world’s highest compared to similar carbonate replacement deposits
• Recent deep drilling has indicated proximity to an intrusive heat source, opening up potential for skarn and porphyry styles of mineralization in addition to carbonate replacement style mineralization
• Limestone-rich stratigraphy at district scale over 2,500 vertical meters in thickness presents significant potential for stacked carbonate replacement style deposits (“CRD”)
• Multiple look-alike targets identified within large 37,650 hectares land package
• Exploration priorities during the 24-month program include (i) working to expand the resource base by drilling known extensions to mineralization directly north and south of Silvertip, (ii) testing additional horizons to ascertain the full vertical extent of mineralization through the stratigraphic column, (iii) further exploring the immediately adjacent heat source to test for skarn and/or porphyry styles of mineralization, and (iv) test high-priority regional look-alike targets

“The Silvertip team has made impressive progress on advancing the geologic understanding of this emerging world-class ore body, and the commencement of this focused drilling campaign over the next 18 months positions us to pursue our primary goal of growing overall resource tonnage,” said Mitchell J. Krebs, Coeur President and Chief Executive Officer. “Silvertip is one of the highest-grade undeveloped carbonate replacement deposits in the world, hosting large and growing resources of silver, zinc and lead—three minerals already playing key roles in the accelerating transition to a net-zero emissions global economy. Located in British Columbia, recent drilling at Silvertip has also identified a suite of other key critical minerals that may further support the growing strategic value of this deposit for Canada and for Coeur as a key driver of future growth.”