NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION, DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, INTO OR WITHIN THE UNITED STATES, AUSTRALIA, CANADA, SOUTH AFRICA OR JAPAN, OR ANY MEMBER STATE OF THE EEA, OR ANY OTHER JURISDICTION WHERE, OR TO ANY OTHER PERSON TO WHOM, TO DO SO MIGHT CONSTITUTE A VIOLATION OR BREACH OF ANY APPLICABLE LAW OR REGULATION. PLEASE SEE THE IMPORTANT NOTICE AT THE END OF THIS ANNOUNCEMENT.

THE COMMUNICATION OF THIS ANNOUNCEMENT AND ANY OTHER DOCUMENTS OR MATERIALS RELATING TO THE RETAIL OFFER AS A FINANCIAL PROMOTION IS ONLY BEING MADE TO, AND MAY ONLY BE ACTED UPON BY, THOSE PERSONS IN THE UNITED KINGDOM FALLING WITHIN ARTICLE 43 OF THE FINANCIAL SERVICES AND MARKETS ACT 2000 (FINANCIAL PROMOTION) ORDER 2005, AS AMENDED (WHICH INCLUDES AN EXISTING MEMBER OF VAST RESOURCES PLC). ANY INVESTMENT OR INVESTMENT ACTIVITY TO WHICH THIS ANNOUNCEMENT RELATES IS AVAILABLE ONLY TO SUCH PERSONS AND WILL BE ENGAGED IN ONLY BY SUCH PERSONS. THIS ANNOUNCEMENT IS FOR INFORMATIONAL PURPOSES ONLY, AND DOES NOT CONSTITUTE OR FORM PART OF ANY OFFER OR INVITATION TO SELL OR ISSUE, OR ANY SOLICITATION OF AN OFFER TO PURCHASE OR SUBSCRIBE FOR, ANY SECURITIES OF VAST RESOURCES PLC.

Defined terms in this announcement shall have the same meaning as defined in the Company's Admission Document published 31 July 2026, unless otherwise defined herein.

21 August 2026

Vast Resources plc
("Vast" or the "Company")

Repayment of Debt

Vast Resources plc (AIM: VAST), the AIM-quoted mining and resource development company with a portfolio of producing and development-stage precious and polymetallic projects in Tajikistan and Romania, is pleased to announce that it has repaid in full the outstanding debt owed to Mercuria Energy Trading SA (US$4,285,081) and A&T Investments SARL (US$6,616,667).

**ENDS**

For further information, please visit the Company's website at www.vastplc.com or contact:

The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulation (EU) No. 596/2014 as it forms part of United Kingdom domestic law by virtue of the European Union (Withdrawal) Act 2018, as amended by virtue of the Market Abuse (Amendment) (EU Exit) Regulations 2019.

This announcement is not for publication or distribution in or into the United States of America.  This announcement is not an offer of securities for sale into the United States. The securities referred to herein have not been and will not be registered under the U.S. Securities Act of 1933, as amended, and may not be offered or sold in the United States, except pursuant to an applicable exemption from registration. No public offering of securities is being made in the United States.

ABOUT VAST RESOURCES

Vast Resources plc is an AIM-quoted mining and resource development company with a portfolio of producing and development-stage precious and polymetallic projects in Tajikistan and Romania.

In Tajikistan, the Company holds a 49% beneficial interest in the Aprelevka Joint Venture, which provides exposure and management control of a portfolio of producing, and near-term production gold and silver assets. The Aprelevka JV operates four active mining licences along the Tien Shan Gold Belt, delivering production of approximately 11,000 ounces of gold and approximately 130,000 ounces of silver per annum. The remaining 51% interest in the JV is held by the Government of Tajikistan.

In Romania, the Company holds 100% ownership of the Baita Plai Polymetallic Mine in Bihor County and the Manaila-Carlibaba Polymetallic Mine, both currently on care and maintenance prior to operational restart. The Romanian portfolio also includes the Blueberry Gold Project, the Former Hanes Mine Project, and the Zagra Licences.