Notice of Annual General and Special Meeting

Core Points - Cornish Metals Inc. will host its 2025 Annual General and Special Meeting (AGSM) on June 30, 2025, in a virtual-only format [1] - Shareholders registered by May 13, 2025, are entitled to vote at the AGSM and should refer to the voting instructions in the Management Proxy Circular [2] - Following the AGSM, the company will hold an online webinar to provide additional updates on its activities [3] Company Overview - Cornish Metals is a dual-listed mineral exploration and development company focused on the South Crofty tin project in Cornwall, UK [4] - The South Crofty project is a historical, high-grade underground tin mine with existing infrastructure and is permitted for underground mining until 2071 [5] - The project has a Preliminary Economic Assessment from 2024 that validates its potential and would make Cornish Metals the only primary tin producer in Europe or North America [5] - Tin is classified as a Critical Mineral by the UK, US, and Canadian governments, essential for electronic devices and electrical infrastructure [5] - The project is expected to generate up to 320 direct jobs and has strong support from local communities and governments [5]