10 April 2025

Dear Shareholder

• 2024 Annual Report & Accounts

• 2025 Annual General Meeting ("AGM") Circular (incorporating the Notice of AGM)

Please accept this letter as notification that the above-referenced documents have now been published on the Company's website at www.hochschildmining.com and are enclosed for shareholders who elected to receive hard copies.

2025 AGM

Arrangements

The AGM will be held on Thursday, 12th June 2025 at The Kings Fund, No. 11 Cavendish Square, London W1G 0AN at 9.30 a.m.

Shareholders who wish to attend the AGM in person are requested to register their intention to attend by emailing [email protected] no later than 9.30 a.m. on Tuesday 10th June 2025.

In the event circumstances change before the appointed time of the meeting, we will notify shareholders of any change to the arrangements through announcements via the London Stock Exchange and by publishing details on the Company's website at www.hochschildmining.com as early as is possible before the meeting. We would encourage all shareholders to appoint the chairman as their proxy to exercise their votes in accordance with their instructions.

2025 AGM Business

This letter does not contain the full details of the resolutions under consideration at the AGM, and these can be found in the Notice of AGM which should be read before you complete your vote.

Please review the Notice of AGM for the Directors' recommendations with respect to the resolutions contained in the Notice of AGM. The Directors consider that the proposed resolutions contained in the Notice of AGM are in the best interests of the Company and shareholders as a whole and unanimously recommend that you vote in favour of them, as they intend to do in respect of their own shareholdings, save that Mr Eduardo Hochschild and Mr Jorge Born Jr. make no recommendation in relation to the Rule 9 Waiver resolution.

Proxy voting

You will not receive hard copy forms of proxy for the AGM in the post. Instead, you will be able to vote electronically by visiting the website: https://uk.investorcentre.mpms.mufg.com/ or via the Investor Centre app which is a free app for smartphone and tablet provided by MUFG Corporate Markets (the Company's registrar). It allows you to securely manage and monitor your shareholdings in real time, take part in online voting, keep your details up to date, access a range of information including payment history and much more. The app is available to download on both the Apple App Store and Google Play, or by scanning the relevant QR code.

Subject to any prevailing restrictions, voting by proxy prior to the AGM does not affect your right to attend the meeting and vote in person should you so wish. Proxy votes must be received no later than 9.30 a.m. on Tuesday 10th June 2025.

Hochschild Mining PLC

21 Gloucester Place London W1U 8HR United Kingdom Tel: +44 (0) 20 3709 3260 www.hocplc.com

Hochschild Mining PLC (incorporated and registered in England and Wales No. 05777693) Registered office: 17 Cavendish Square, London W1G 0PH

If you need help with voting online, please contact our registrar, MUFG Corporate Markets, as follows:

By telephone: 0371 664 0300 (calls are charged at the standard geographic rate and will vary by provider. Calls outside the United Kingdom will be charged at the applicable international rate. Lines are open between 9.00 a.m. – 5.30 p.m., Monday to Friday (excluding public holidays in England and Wales);

By email: [email protected]

Thank you for your continued support.

Yours sincerely

Raj Bhasin

Company Secretary

Additional shareholder information

Shareholder Communications

The majority of shareholders choose to receive annual reports and notices of meetings electronically. This has a number of advantages for the Company and its shareholders. It increases the speed of communication, saves you time and reduces print and distribution costs and our impact on the environment.

Company law requires that the Company asks shareholders to consent to the receipt of communications electronically and via a website*. Please note that if you consent to website publication you will continue to be notified in writing and through the release of an announcement on the London Stock Exchange each time the Company places a statutory communication on the website. Annual reports and other documents that are required to be sent to shareholders ("Shareholder Information") are published on our website at www.hochschildmining.com. If you consent, the website will be the way in which you access all future Shareholder Information.

Please note that you still have the right to request hard copies of Shareholder Information at no charge.

In summary, you have the following options:

If you would like to receive notifications by email

Please register your email address via the Share Portal https://uk.investorcentre.mpms.mufg.com/ or write to FREEPOST SAS, 29 Wellington Street, Leeds LS1 4DL (no stamp or further address detail is required. Please write in BLOCK CAPITALS).

If you would like to receive Shareholder Information by means of a website

You do not need to take any action. You will be notified by post when Shareholder Information has been placed on the Company's website.

If you would like to receive Shareholder Information in hard copy form

Please register your request via the Share Portal https://uk.investorcentre.mpms.mufg.com/ or write to FREEPOST SAS, 29 Wellington Street, Leeds LS1 4DL (no stamp or further address detail is required. Please write in BLOCK CAPITALS).

Please note that if you hold your shares corporately or in a CREST account, you are not able to use the Share Portal to inform us of your preferred method of communication and should instead write to FREEPOST SAS, 29 Wellington Street, Leeds LS1 4DL (no stamp or further address detail is required. Please write in BLOCK CAPITALS).

If we do not receive a reply from you within 28 days of the date of dispatch of this letter, you will be deemed to have consented to website publication of Shareholder Information and you will not receive hard copies of Shareholder Information in the post.

*The Company reserves the right to send hard copy documents to shareholders where, for example, overseas securities laws do not permit electronic communication or in other circumstances where the Company considers that electronic delivery may not be appropriate.