Key Mining Corp. Key Mining Corp. (KMCM), an exploration-stage mining company founded in 2020 and headquartered in Miami, Florida, focuses on the discovery and development of critical minerals, primarily rutile for high-grade titanium dioxide (TiO2) processing at its Cerro Blanco project and copper with secondary zinc at its Fiel Rosita project; both properties are located in Chile's Atacama Region (Region III), a premier mining jurisdiction; the company operates through wholly owned subsidiaries Key Mining Corporation Chile SpA, Gold Express Mines SpA, and Cerro Blanco Titanium, Inc., while maintaining secondary optionality for non-core critical minerals projects in the United States emphasizing copper. Key Mining Corp. targets non-ferrous and precious metals including copper, molybdenum, gold, silver, zinc, lead, and rutile deposits, serving global markets for critical minerals essential to industrial and technology sectors. Recent major changes include a name change from Key Metals Corp. in August 2023, the acquisition of the Cerro Blanco project via stock issuance to Gold Express Mines, Inc., and the withdrawal of its planned initial public offering on April 23, 2025 after multiple S-1/A amendments targeting up to $25 million in proceeds for exploration funding.