Q3 2026 Corporate Presentation

RNS REACH

15 July 2026

GREAT WESTERN MINING CORPORATION PLC

("Great Western", "GWM" or the "Company")

New Corporate 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 Q3 2026 Corporate Presentation can be viewed on its website at https://www.greatwesternmining.com/investors/company-presentations/. No material new financial or other information has been disclosed.

The presentation outlines Great Western's strategy to advance its emerging tungsten corridor in Nevada, positioning the Company to benefit from strengthening fundamentals for this critical mineral, alongside its established copper and precious metals portfolio.

ENDS

For further information visit www.greatwesternmining.com or contact:

Notes

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.