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ALT Resources PLC

18 November 2025

This announcement contains inside information as stipulated under the UK version of the Market Abuse Regulation No 596/2014 which is part of English law by virtue of the European (Withdrawal) Act 2018, as amended. On publication of this announcement via a Regulatory Information Service, this information is considered to be in the public domain.

18 November 2025

ALT Resources PLC (ALTR.L)

Strategic LOIs Signed with Tartana Minerals Ltd

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Further to the Company's announcement on 23 October 2025, ALT Resources PLC ("ALTR" or the "Company"), a company formed to pursue value-accretive opportunities in the mining, precious metals, and critical minerals sectors, is pleased to announce that it has entered into non-binding Letters of Intent ("LOIs") with Tartana Minerals Ltd ("Tartana" or "TAT"), an ASX-listed copper producer and critical minerals exploration and development company. Completion of the Proposed Acquisition will be subject to certain conditions, including, inter alia, due diligence, legal documentation, fundraising, and admission of the Company's entire issued and to be issued share capital to trading on AIM.

The LOIs relate to:

1.   Proposed Financing Transaction - ALTR intends to provide financing to Tartana to support the optimisation of commercial copper sulphate production at its project located in the Chillagoe region of North Queensland (the "Proposed Transaction").

2.   Joint Venture Formation - ALTR and Tartana propose to form a joint venture to explore and develop a portfolio of assets in Queensland with potential for tin, copper, and other critical minerals.

The Proposed Transaction is consistent with ALTR's stated strategy of originating differentiated royalty and streaming investments in assets that are either in production or approaching production. Royalty financing provides an alternative to conventional debt and equity funding, enabling operators to access capital while maintaining operational control and upside. In addition, the Company intends to incubate the joint venture assets, advancing resource development and monetisation while retaining a royalty interest.

The Company expects this investment to coincide with its proposed admission to trading on AIM and a concurrent capital raise to fund the copper transaction and provide additional working capital.

For further information:

www.altresources.co.uk.com

ALT Resources

Prad Mazumder

Paris Christofides

Joint-CEOs                                                     +44 207 193 2376 / [email protected]                                           

Celicourt Communications                             +44 207 770 6424 / [email protected]

Mark Antelme / Kathleen Beams

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