Publication of Q4 2026 Presentation

Great Western Mining Corporation PLC (AIM: GWMO / Euronext Growth: 8GW / OTCQB: GWMOF), a strategic minerals exploration and development company, is pleased to announce that its Q4 2026 Corporate Presentation is now available on its website at https://www.greatwesternmining.com/investors/company-presentations/. No material new financial or other information has been disclosed.

The presentation highlights recent progress at the Company's Defender Tungsten Project in Nevada, including completion of a 23-hole drilling programme and encouraging initial metallurgical results achieving approximately 93% tungsten recovery into a rougher concentrate. It also outlines the next steps towards a maiden Mineral Resource Estimate and provides an overview on the wider copper and precious metals portfolio.

Great Western Mining Corporation PLC (AIM: GWMO / Euronext Growth: 8GW / OTCQB: GWMOF) is an exploration and development company focused on strategic minerals across several 100%-owned claim groups in Mineral County, Nevada, a highly prospective and mining-friendly jurisdiction. The Company has an increasing strategic emphasis on tungsten as a critical mineral, while continuing to advance its Huntoon Copper Project, which hosts a JORC-compliant resource of 4.3 Mt at 0.45% Cu with further porphyry upside. It also maintains exposure to gold and silver through exploration and tailings reprocessing opportunities, alongside evaluating farm-out and joint venture options to unlock wider portfolio value.