Coeur Provides 2018 Exploration Update

Coeur Mining, Inc. (“Coeur” or the “Company”) (NYSE: CDE) today provided an update on its 2018 exploration activities highlighting encouraging results from the recently acquired Sterling Mine in Nevada, the ongoing near-mine exploration at Palmarejo in Mexico, and positive results from Kensington in Alaska, Silvertip in British Columbia and Rochester in Nevada. Highlights include:

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Sterling Project: Site Overview (Graphic: Business Wire)

• Encouraging drill results from new areas west of the Sterling Mine and Daisy zone – While drilling is ongoing, results from a new condemnation drill hole at Sterling returned 70.0 feet (21.3 meters) of 0.18 ounces per ton (“oz/t”) (6.1 grams per tonne (“g/t”)) gold near its historic leach pad.
• Promising results from the Daisy zone north of Sterling – Large step out drill holes at the Daisy zone returned 40.0 feet (12.2 meters) of 0.13 oz/t (4.4 g/t) gold and 60.0 feet (18.3 meters) of 0.04 oz/t (1.4 g/t) gold; both holes are in oxidized mineralization.
• At Palmarejo, drilling at La Nación, Guadalupe and Independencia continues to expand the deposits – Drill results at La Nación include 25.6 feet (7.8 meters) of 0.17 oz/t (5.7 g/t) gold and 24.3 oz/t (833.1 g/t) silver. Development toward this new deposit remains on-schedule with production expected to commence in the second half of 2019. Drilling at the southern portion of Guadalupe, in the Las Animas zone, has discovered three potentially-mineralized zones, with one drill hole returning 9.2 feet (2.8 meters) of 0.07 oz/t (2.3 g/t) gold and 9.8 oz/t (336.6 g/t) silver, 17.1 feet (5.2 meters) of 0.08 oz/t (2.7 g/t) gold and 6.7 oz/t (229.0 g/t) silver, and 22.3 feet (6.8 meters) of 0.07 oz/t (2.3 g/t) gold and 3.6 oz/t (122.4 g/t) silver. At Independencia, near-mine drilling successfully extended mineralization by approximately 500 feet (152 meters) to the south; drill highlights from 2018 include one interval with 13.1 feet (4.0 meters) of 0.20 oz/t (6.8 g/t) gold and 20.2 oz/t (693.4 g/t) silver.
• At Kensington, exploration drilling generated strong drill results at Elmira and Ophir – Recent drill results at the Elmira vein, located 1,200 feet (366 meters) east of the Kensington Mine, include 14.3 feet (4.4 meters) of 1.01 oz/t (34.5 g/t) gold. At the new Ophir vein, located approximately 4,000 feet (1,219 meters) west of the Kensington Mine, drill results returned 2.4 feet (0.7 meters) of 0.86 oz/t (29.5 g/t) gold. Due to their proximity to existing underground infrastructure, the Elmira and Ophir veins represent potential high-grade gold mineralization.
• Infill drilling at Silvertip continued through late 2018 – One area of focus of the 2018 drilling program was resource conversion and further developing a reserve-based mine plan. Resource growth and expansion remain a longer-term priority for the Company. Multiple manto and vertical chimney structures were intercepted in the Silver Creek and Discovery zones; highlights include 27.6 feet (8.4 meters) of 21.9 oz/t (750.1 g/t) silver, 11.9% zinc and 15.7% lead from a hole in the Silver Creek zone.
• At Rochester, the Sunflower Ridge and NE pit zones returned high-grade results – Drill results at Sunflower Ridge, located on the southwestern edge of the Rochester Mine, include 80.0 feet (24.4 meters) of 1.2 oz/t (41.4 g/t) silver and 0.02 oz/t (0.5 g/t) gold. At the NE Rochester pit zone, drill results returned 400.0 feet (121.9 meters) of 1.0 oz/t (35.8 g/t) silver and 0.003 oz/t (0.1 g/t) gold.

During 2018, Coeur anticipates spending approximately $45–$55 million on exploration, approximately three times higher than exploration investment in 2015, including $25–$30 million of expensed exploration and $20–$25 million of capitalized exploration.¹ Approximately 85%¹ of the Company’s 2018 exploration budget has been allocated to expected lower risk and higher return near-mine drilling, with the objectives of (i) discovering new resources and (ii) converting existing resources to reserves to extend mine life. The remaining 15%¹ has been earmarked for early-stage greenfield programs. Total rig count and feet drilled in 2018 is expected exceed 2017 levels and reach their highest levels since 2012.