First Lithium Minerals Corp. operates as a mineral exploration and development company in Chile and Canada. The company primarily explores for lithium and alkali metals. It holds 100% interests in the OCA Salar de Ascotan project that covers an area of approximately 1,800 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 17,300 hectares located at the north of the City of Thunder Bay along highway 527, Ontario. The company was founded in 2017 and is headquartered in Toronto, Canada.