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.

20 August 2026

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

Further Subscription to Raise approximately £0.4 million and Issue of Fee Shares

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, as contemplated in the Company's announcement of 19 August 2026, it has raised £427,000 (gross) through a subscription (the "Further Subscription") of 6,837,600 new ordinary shares of  £0.025 (2.25 pence) each in the Company (the "Further Subscription Shares") at a price of 6.25 pence each.  The subscriber is an individual who was not able to participate in the Subscription, announced on 31 July 2026, due to time constraints.

The terms of the Further Subscription are the same as those in the Subscription both as to price and as to the undertakings given by the subscriber, it being understood that the subscriber has the intention of being a long-term holder of the shares.

In particular the subscriber is subject to the same orderly market provisions as the Subscribers. This includes, that for six months from Admission, he may not effect a transfer of his share (subject to minor exceptions) other than through the Company's broker subject to protections as to receiving terms relating to price and execution that are no less favourable than those being offered by other brokers for similar transactions.

The proceeds of the Further Subscription will be applied to general working capital.

Fee Shares

In addition to the Further Subscription, and on the same terms (as set out above), certain consultants to the Company have asked to covert fees owed to them by Vast into New Ordinary Shares at the Subscription Price (6.25 pence).  This amounts to £58,355 which has been satisfied by the issue of 933,680 New Ordinary Shares (the "Fee Shares").

Total Voting Rights

Application will be made to AIM for the Further Subscription Shares and the Fee Shares, which will rank pari passu with existing ordinary shares, to be admitted to trading on AIM ('Admission').  It is expected that Admission will become effective and dealing will commence on or around 25 August 2026.  The Further Subscription and Fee Share issuance is conditional on Admission.

Following the Admission, the total issued share capital of the Company will be 1,653,712,836 of £0.025 each. The Company does not hold any ordinary shares in Treasury and accordingly the above figure of 1,653,712,836 may then be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in Vast under the FCA's Disclosure and Transparency Rule.

**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.