Arca Scientist Eric Wynands working with rover on ultramafic mine tailings at a mine site in Western Australia in 2025 VANCOUVER, British Columbia, Jan. 14, 2026 (GLOBE NEWSWIRE) -- Arca Climate Technologies Inc. (“Arca”), an Industrial Mineralization company, and Giga Metals Corporation (“Giga Metals”) (TSX-V: GIGA; OTCQB: GIGGF; FSE: BRR2), a Canadian mining company advancing the Turnagain Nickel Project in British Columbia in partnership with the Mitsubishi Corporation, today announced a 10-year tailin ...