First Lithium Minerals Corp. operates as a mineral exploration and development company in Chile and Canada. It primarily explores lithium and alkali metals. The company holds 100% interests in the OCA Salar de Ascotan project that covers an area of approximately 6,400 hectares of mineral exploration concessions located in the salar Ascotan in the Antofagasta Region of northern Chile; and the Lidstone project, which covers an area of approximately 12,000 hectares located northwest of Geraldton, Ontario. The company was founded in 2017 and is headquartered in Toronto, Canada.