National Storage Mechanism | Additional information

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8 September 2025

Conversion Rate for 2025 Interim Dividend

Further to the Interim Results announcement on 27 August 2025, the Directors of Hochschild Mining PLC (the "Company") have determined that the exchange rate to be applied to the 2025 interim dividend is US$1 : £0.7425.

Accordingly, the sterling equivalent of the 2025 interim dividend is 0.742 pence per Ordinary Share which will be paid on 3 October 2025.

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Enquiries:

Hochschild Mining PLC

Raj Bhasin +44 (0)7825 533495

Company Secretary

Hudson Sandler

Charlie Jack +44 (0)20 7796 4133

Public Relations

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About Hochschild Mining PLC

Hochschild Mining PLC is a leading precious metals company listed on the London Stock Exchange (HOCM.L / HOC LN) and crosstrades on the OTCQX Best Market in the U.S. (HCHDF), with a primary focus on the exploration, mining, processing and sale of silver and gold. Hochschild has over fifty years' experience in the mining of precious metal epithermal vein deposits and operates two underground epithermal vein mines: Inmaculada, located in southern Peru; and San Jose in southern Argentina, and an open pit gold mine, Mara Rosa, located in the state of Goiás, Brazil. Hochschild also has numerous long-term projects throughout the Americas.

LEI: 549300JK10TVQ3CCJQ89

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