Mr. Mitchell Krebs reports

COEUR PUBLISHES 2025 RESPONSIBILITY REPORT

Coeur Mining Inc. today published its 2025 responsibility report, outlining the company's approach to responsible mining and highlighting progress across its environmental, safety, work force and community priorities. The Report demonstrates how Coeur integrates sustainability considerations and strong governance into operational decision-making to support long-term value creation for stakeholders across its portfolio.

Report highlights include:

• Water stewardship -- In 2025, Coeur formalized enterprise-wide water stewardship goals with a focus on resilience, efficiency and transparency. The company continued site-specific initiatives and community investments, including the continuing implementation of a multiyear water stewardship program at Las Chispas with more than $1-million invested since 2021 to strengthen local water infrastructure and long-term community water security.
• Health and safety -- Coeur achieved its lowest lost-time incident severity rate in the company's history through a continued focus on critical risk management, leadership engagement and pro-active hazard identification. These efforts supported a fourth consecutive year as a peer leader in safety incident rates, as reported by the U.S. Mine Safety and Health Administration (MSHA).
• Tailings management -- As part of its commitment to the Global Industry Standard on Tailings Management, the company advanced implementation across applicable sites, reaching approximately 73-per-cent overall completion in 2025 compared with 30 per cent at year-end 2024, and remaining on track toward full conformance at applicable sites by the end of next year.
• Energy and climate -- Coeur achieved its lowest recorded greenhouse gas emissions intensity since 2020 after surpassing its three-year reduction goal at year-end 2024, supported by improved production efficiency and its growing use of renewable electricity, which represented 43 per cent of purchased electricity in 2025.
• Biodiversity and land management -- The company continued implementing its Biodiversity Management Standard, which guides the identification, assessment and management of biodiversity risks and opportunities across the mine life cycle, completing a nature-related risk assessment at Wharf, following the 2024 pilot at Kensington, and advancing reclamation and land stewardship activities across its sites.
• Community and indigenous engagement -- Coeur invested approximately $1.8-million in community initiatives in 2025, increasing its community investment from 2024, supporting education, work force development, infrastructure and health programs, while strengthening partnerships with indigenous communities through continued engagement, agreements and scholarship programs.
• Strong governance -- The company maintained robust governance practices, including board oversight of responsibility priorities, integration of responsibility-related metrics into executive compensation, and continued strengthening of enterprise risk management, ethics and compliance programs. Coeur also maintained an ISS Governance QualityScore of 1, placing the company in the top decile of governance performance relative to industry peers.

"At Coeur, corporate responsibility is integral to how we operate and how we build a resilient business," said Mitchell J. Krebs, chairman, president and chief executive officer. "Two thousand twenty-five was a transformational year for our company, marked by the successful integration of the Las Chispas operation, the announcement of the acquisition of New Gold and its New Afton and Rainy River mines, and strong performance across our portfolio, supported by our continued successful exploration investments which again increased our reserves and resources and extended mine lives. Through our ongoing progress across safety, environmental stewardship, community and indigenous engagement and governance, we are reinforcing our foundation for responsible mining, sustainable growth and long-term value creation."

The 2025 responsibility report and accompanying responsibility data book are available on Coeur's website.

About Coeur Mining Inc.

Coeur Mining is a United States-based, well-diversified, growing precious metals producer with seven wholly owned operations: the New Afton gold-copper mine in British Columbia, Canada, the Rainy River gold-silver mine in Ontario, Canada, the Las Chispas silver-gold mine in Sonora, Mexico, the Palmarejo gold-silver mine in Chihuahua, Mexico, the Rochester silver-gold mine in Nevada, the Kensington gold mine in Alaska and the Wharf gold mine in South Dakota. In addition, the company wholly owns the Silvertip polymetallic critical minerals exploration project in British Columbia, Canada.

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