Vancouver, British Columbia - June 5, 2025 - Great Plains Metals Corporation (TSX-V: GPS, Frankfurt Exchange: 8VC) has announced the signing of an Earn-in and Joint Venture Agreement with Godolphin Tenements Pty Ltd, a subsidiary of Godolphin Resources Ltd (ASX: GRL), for the Yeoval Goodrich Project in New South Wales, Australia. This agreement allows GPS to earn a 70% interest in the project by meeting specific exploration milestones over two years, including A$2m in exploration expenditures and 1,000 metres of drilling. The Yeoval Goodrich Project, located in a region known for copper and gold mineralization, is at an advanced exploration stage, and GPS plans to commence work promptly. This expansion enhances GPS's strategic focus on low-cost, rapid discovery opportunities in Australia.