Quest Rare Minerals Ltd. engages in the exploration, evaluation, and development of rare earth element deposits in Canada. The company focuses on its flagship Strange Lake rare earth project located in northeastern Quebec, which contains significant quantities of heavy rare earth elements including dysprosium and terbium, as well as light rare earths, yttrium, zirconium, and niobium; it aims to produce separated rare earth oxides, mixed heavy rare earth and yttrium oxide concentrates, high-purity zirconium basic sulfate, niobium oxide, and mixed light rare earth double-sulfate concentrates for applications in permanent magnets, wind turbines, electric vehicles, consumer electronics, and medical equipment. Incorporated in 2007 and headquartered in Montreal, Quebec, the company formerly operated as Quest Uranium Corporation before changing its name in April 2010; it trades on OTC markets under ticker QRMLF and previously on TSX Venture as QRM. Operations center on the Strange Lake property spanning approximately 9,360 hectares adjacent to Lac Brisson, with additional interests in the nearby Alterra-Strange Lake property covering 750 hectares in western Labrador. Recent developments include the receipt of $10.86 million in funding through an equity financing transaction closed in October 2025 involving two investors under Regulation D exemption, supporting advancement of the Strange Lake project.