Exercise of Warrants

12 November 2026

East Star Resources Plc

(“East Star” or the “Company”)

Exercise of Warrants

East Star Resources Plc (LSE: EST), the Kazakhstan-focused gold and copper exploration and development company, is pleased to announce that it has received warrant exercise notices to subscribe for a total of 4,067,824 new ordinary shares of £0.05 each in the Company ("Ordinary Shares") (the "Warrant Shares"). 

A total of 4,067,824 Warrant Shares have been exercised at a price of £0.05 pence per Ordinary Share resulting in total gross proceeds to the Company of £203,391.20.

Admission

Application has been made for the Warrant Shares to be admitted to trading on the main market for listed securities of the London Stock Exchange, and admission of the Warrant Shares is expected to occur on or around 13 November 2026 ("Admission"). The Warrant Shares will rank pari passu with the existing Ordinary Shares.

For the purpose of the Disclosure and Transparency Rules, following Admission the enlarged issued share capital of the Company will comprise 554,080,746 Ordinary Shares. The Company does not hold any shares in treasury. The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company, under the Disclosure and Transparency Rules.

Contacts:

East Star Resources Plc

Alex Walker, Chief Executive Officer

Tel: +44 (0)20 7390 0234 (via Vigo Consulting)

SI Capital (Corporate Broker)

Nick Emerson

Tel: +44 (0)1483 413 500

Vigo Consulting (Investor Relations)

Ben Simons / George Pope / Georgina Moul

Tel: +44 (0)20 7390 0234

About East Star Resources Plc

East Star Resources (LSE: EST) is a copper and gold exploration and development company focused on Kazakhstan, advancing a portfolio of projects through strategic partnerships and high-impact exploration.

The Company is progressing two copper projects towards production at no further cost to East Star: Verkhuba (20.3Mt @ 1.16% Cu, 1.54% Zn and 0.27% Pb), with East Star retaining a 30% interest through its joint venture with Xinhai Mining; and Rulikha (23Mt @ 2.4% CuEq exploration target), with East Star retaining a 25-35% interest through its joint venture with a Kazakh mining company.

East Star is also engaged in a US$25m+ strategic gold exploration joint venture with FTSE 100 Endeavour Mining (the Company’s largest shareholder) while independently pursuing other copper porphyry and epithermal gold targets.

Visit our website:

www.eaststarplc.com

Follow us on social media:

LinkedIn: https://www.linkedin.com/company/east-star-resources/

X: https://x.com/EastStar_PLC

Engage with us by asking questions, watching video summaries and seeing what other shareholders have to say. Navigate to our interactive Investor Hub here: https://eaststarplc.com/auth/signup

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The person who arranged for the release of this announcement was Alex Walker, CEO of the Company.

This announcement contains inside information for the purposes of Article 7 of Regulation 2014/596/EU which is part of domestic UK law pursuant to the Market Abuse (Amendment) (EU Exit) Regulations (SI 2019/310) (“UK MAR”). Upon the publication of this announcement, this inside information (as defined in UK MAR) is now considered to be in the public domain.