First Lithium Minerals Corp. operates as a mineral exploration and development company in Chile, Ontario, and Quebec. It focuses on exploring for lithium and alkali metals. The company holds 100% ownership in OCA lithium project comprising approximately 1,800 ha of mineral exploration concessions located in the salars of Ollague, Carcote, and Ascotan in the Antofagasta Region of northern Chile. It also holds 100% interest in Lidstone project, covering 17,300 ha located at the north of the City of Thunder Bay along highway 527. The company was founded in 2017 and is headquartered in Toronto, Canada.