Directorate change

Incorporated in Guernsey. Guernsey registration number: 47656

South African external company registration number: 2009/012636/10

Share code on JSE:GML (General Segment of JSE Main Board) / AIM:GEM

ISIN: GG00BG0KTL52 | LEI: 21380017GAVXTCYS5R31

("Gemfields" or the "Group" or the "Company")

Directorate Change

LONDON, 30 JUNE 2026

Gemfields announces that Sean Gilbertson will, by mutual agreement with the Board, step down as Chief Executive Officer and as a director of the Company with effect from 15 July 2026.

The Board would like to thank Sean for his contribution to the Company and wishes him well in his future endeavours.

David Lovett, who has held the role of Chief Financial Officer for 8 years, has been appointed as Interim Chief Executive Officer alongside his existing role as Chief Financial Officer. The Board, advised by the Nominations Committee, will in due course commence a formal process to identify a permanent successor.

The Board believes that this interim arrangement provides continuity of leadership and ensures ongoing focus on the Company's operational and strategic priorities. During this interim arrangement, Bruce Cleaver, Non-Executive Chairman of the Board, has agreed to dedicate additional time to supporting the business and the management team.

Further updates will be provided as appropriate.

-ENDS-

Further information on Gemfields Group Limited can be found at:

 GEMFIELDSGROUP.COM

To join our investor mailing list, please contact us on: ir@gemfields.com

This announcement contains inside information for the purposes of Article 7 of the Market Abuse Regulation (EU) no. 596/2014 which forms part of domestic UK law pursuant to the European Union (withdrawal) act 2018 ("MAR").

ENQUIRIES

NOTES TO EDITORS

About Gemfields Group Limited

Gemfields is a world-leading miner of coloured gemstones, dual-listed on the Johannesburg and London AIM stock exchanges.

Gemfields is the operator and 75% owner of both Kagem Mining in Zambia (a world-leading emerald mine) and Montepuez Ruby Mining in Mozambique (situated on one of the most significant recently discovered ruby deposits in the world). In addition, Gemfields holds controlling interests in various other gemstone mining and prospecting licenses in Zambia, Mozambique and Madagascar.

Gemfields has developed a proprietary grading system and a pioneering auction platform to provide a consistent supply of coloured gemstones to downstream markets, a key component of Gemfields' business model that has played an important role in the growth of the global coloured gemstone sector.

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MONTEPUEZ RUBY MINING LINKEDIN | FACEBOOK