Lumina Metals Commences Pre-Feasibility Study for The Nowa Sol Copper-Silver Project with Fluor Corporation

Warsaw, Poland--(Newsfile Corp. - May 19, 2026) - Lumina Metals Corp. (TSX: LMCU) ("Lumina" or the "Company") is pleased to announce the formal commencement of the NI 43-101 compliant pre-feasibility study ("PFS") for its flagship Nowa Sól copper-silver project located in western Poland. The PFS will focus on optimizing the overall project development plan and refining the key technical and economic parameters for the Nowa Sól project, including mining methods, shaft sinking and underground infrastructure, metallurgical processing, tailings management, power supply, logistics, permitting integration, capital expenditures, operating costs, and overall execution planning.