Incorporated in Guernsey. Guernsey registration Number: 47656. South African external company registration number 2009/012636/10 Share code on JSE:GML / AIM:GEM ISIN: GG00BG0KTL52 | LEI: 21380017GAVXTCYS5R31 ("Gemfields" or the "Company") Disclosure of beneficial interests in securities LONDON, 1 June 2022 In compliance with AIM Rule 17, shareholders are advised that Gemfields received formal notification on 31 May 2022 from Rational Expectations Proprietary Limited (“Rational Expectations”) that it, combined with related parties, now hold a total of 118,602,785 ordinary shares in the Company, equivalent to 10.03% of the total issued shares in the Company. Rational Expectations’ completed form TR-1 has been released to the market. -ENDS- Further information on Gemfields Group Limited can be found at: GEMFIELDSGROUP.COM To join our investor mailing list, contact us on: companysecretary@gemfields.com For any press enquiries please contact us on: gemfields@camarco.co.uk ENQUIRIES GEMFIELDS Sean Gilbertson / David Lovett T: +44(0) 20 7518 3400 Gemfields Group Limited, Royal Chambers, St Julian’s Avenue, St Peter Port, GY1 4HP, Guernsey T +44 (0)1481 731 554 gemfieldsgroup.com SPONSOR (JSE) Investec Bank Limited SEDIBELO SALE PROCESS Liberum Nehal Patel T: +44(0) 20 3100 2222 NOMINATED ADVISER finnCap (AIM) & JOINT BROKER Christopher Raggett / Tim Redfern / Edward Whiley T: +44(0) 20 7220 0500 JOINT BROKER Liberum Scott Mathieson / Kane Collings T: +44(0) 20 3100 2222 FINANCIAL PR/ IR Camarco Gordon Poole / Emily Hall T: +44(0) 20 3757 4980 ADDITIONAL INFORMATION ON GEMFIELDS Gemfields is a world-leading miner of responsible coloured gemstones. Gemfields is the operator and 75% owner of both the Kagem emerald mine in Zambia (believed to be the world’s single largest producing emerald mine) and the Montepuez ruby mine in Mozambique (one of the most significant recently discovered ruby deposits in the world). In addition, Gemfields also holds controlling interests in various other gemstone mining and prospecting licences in Zambia, Mozambique, Ethiopia and Madagascar. Gemfields’ outright ownership of Fabergé - an iconic and prestigious brand of exceptional heritage - enables Gemfields to optimise positioning, perception and consumer awareness of coloured gemstones through Fabergé designs, advancing the wider group’s “mine and market” vision. Gemfields has developed a proprietary grading system and a pioneering auction and trading 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. GEMFIELDS Gemfields Group Limited Page 2 of 8 GEMFIELDS.COM | INVESTORS |FOUNDATION INSTAGRAM | FACEBOOK | TWITTER | YOUTUBE FABERGÉ FABERGÉ.COM | INSTAGRAM | FACEBOOK | TWITTER | YOUTUBE KAGEM MINING LINKEDIN MONTEPUEZ RUBY MINING LINKEDIN Gemfields Group Limited Page 3 of 8 TR-1: Standard form for notification of major holdings 1. Issuer Details ISIN GG00BG0KTL52 Issuer Name GEMFIELDS GROUP LIMITED UK or Non-UK Issuer UK 2. Reason for Notification An acquisition or disposal of voting rights 3. Details of person subject to the notification obligation Name Rozendal Associate Holdings City of registered office (if applicable) Port Louis Country of registered office (if applicable) Mauritius City of registered Country of registered Name office office Rational Expectations Cape Town South Africa (Pty) Ltd 4. Details of the shareholder Full name of shareholder(s) if different from the person(s) subject to the notification obligation, above City of registered office (if applicable) Gemfields Group Limited Page 4 of 8 Country of registered office (if applicable) 5. Date on which the threshold was crossed or reached 27-May-2022 6. Date on which Issuer notified 31-May-2022 7. Total positions of person(s) subject to the notification obligation % of voting % of voting rights through Total number of rights attached financial Total of both in . to shares (total instruments % (8.A + 8.B) voting rights held in issuer of 8.A) (total of 8.B 1 + 8.B 2) Resulting situation on the date on which 10.030000 0.000000 10.030000 118602785 threshold was crossed or reached Position of previous notification 9.021200 0.000000 9.021200 (if applicable) 8. Notified details of the resulting situation on the date on which the threshold was crossed or reached 8A. Voting rights attached to shares Number of Class/Type of Number of direct % of direct % of indirect indirect voting shares ISIN voting rights voting rights voting rights rights code(if possible) (DTR5.1) (DTR5.1) (DTR5.2.1) (DTR5.2.1) GG00BG0KTL52 91678433 26924352 7.750000 2.280000 Gemfields Group Limited Page 5 of 8 Sub Total 8.A 118602785 10.030000% 8B1. Financial Instruments according to (DTR5.3.1R.(1) (a)) Number of voting rights that % of Type of financial Expiration Exercise/conversion may be acquired if the voting instrument date period instrument is rights exercised/converted Sub Total 8.B1 8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b)) Type of Physical or Number of % of Expiration Exercise/conversion financial cash voting voting date period instrument settlement rights rights Sub Total 8.B2 9. Information in relation to the person subject to the notification obligation 2. Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entities (please add additional rows as necessary) % of voting % of voting rights through Total of both if it rights if it financial Ultimate equals or is Name of controlled equals or is instruments if controlling higher than the undertaking higher than it equals or is person notifiable the notifiable higher than the threshold threshold notifiable threshold Rational Kalander Expectations 7.750000 0.000000 7.750000% Trust (Pty) Ltd Afrika Afrika Avontuur Avontuur 1.120000 0.000000 1.120000% Kapitaal Trust (Pty) Ltd Afrika Beaucourt Avontuur Holdings 0.040000 0.000000 0.040000% Trust (Pty) Ltd Gemfields Group Limited Page 6 of 8 Kalander Potdrie (Pty) 0.190000 0.000000 0.190000% Trust Ltd Afrika Afrika Avontuur Avontuur 0.090000 0.000000 0.090000% Trust Trust Groenpunt Groenpunt Kapitaal 0.230000 0.000000 0.230000% Trust Limited Rozendal & Vinkel Associates 0.610000 0.000000 0.610000% Trust Holdings Ltd 10. In case of proxy voting Name of the proxy holder The number and % of voting rights held The date until which the voting rights will be held 11. Additional Information Following parties are related to Rational Expectations holding 7.75% directly (the party subject to reporting notification) and their respective % holdings are as follows: 1: Rozendal & Associates Holdings Limited - 0.61% 2: Groenpunt Kapitaal Limited - 0.23% 3: Potdrie Proprietary Limited - 0.19% 4: Afrika Avontuur Kapitaal Proprietary Limited - 1.12% 5: Afrika Avontuur Trust - 0.09% 6: Beaucourt Holdings Proprietary Limited - 0.04% 12. Date of Completion 01-Jun-2022 Gemfields Group Limited Page 7 of 8 13. Place Of Completion Cape Town Gemfields Group Limited Page 8 of 8