Ann: Acquisition of Wudinna Gold Project, page-2

Acquisition of Wudinna Gold Project Binding terms to acquire 279koz Au South Australian gold project HIGHLIGHTS Binding terms to acquire 279koz Au Wudinna Gold Project for up to $15 million, with the majority settled in Barton equity and deferred payments Significant optionality to Barton’s regional development objectives Subject to completion, Barton’s gold JORC Resources will be 2.14Moz Au Dear Investors & Colleagues, It's been a busy weekend, and we're pleased to share some more news making this a '500,000oz kind of day' to cap off an already incredible fiscal year 2025 for BGD... Following this morning's announcement of a new 223koz gold JORC Mineral Resource adjacent to our Central Gawler Mill, we are pleased to announcebinding terms for the acquisition of the Wudinna Gold Project from Cobra Resources PLC. Completion of the Transaction is subject only to Cobra shareholder approval. Total consideration to be paid is up to $15 million, with the majority settled in Barton equity and deferred performance milestone payments: Initial: $1.0m, including $200k cash, on issue of 'New Tenements' Final: $4.5m, including $300k cash, on transfer to Barton Gold Contingent: up to $9.5m upon exploration and production milestones Please refer totoday's announcementfor a detailed summary of Transaction terms. These assets offer significant low-cost optionality to Barton’s long-term regional development objectives, and we will be pleased to welcome Cobra and its shareholders to Barton’s register as we steadily unlock value across our platform. Upon Completion of the Transaction, Wudinna will add a further 279,000oz gold to our South Australian development portfolio. Barton’s total South Australian JORC Gold Mineral Resources endowment would then be 2.14Moz, which is anticipated to grow further with the replacement of the estimate for Mineral Resources in the Challenger underground below the 900mRL level, which is currently underway. We also recognise and applaud the State of South Australia for a new regulatory framework permitting the sub-division of mineral tenements. This enabled both a transaction which otherwise would not have materialised, and Wudinna’s advancement. Barton has completed confirmatory due diligence on the Sale Assets, with all key considerations factored into the Transaction structure. Completion of the Transaction is therefore subject only to the approval of Cobra shareholders at an extraordinary general meeting anticipated to be held during July 2025 (EGM). As we noted earlier today, BGD is entering the next of several exciting phases of its long-term regional development strategy. We look forward to sharing many more updates and, as always, we are honoured to have your support. A copy of this announcement can be found on the ASX platform and the Company's websitehere. Regards, Alexander Scanlon Managing Director & CEO

Ripper announcement after close