SOPerior Fertilizer Corp. is an exploration and development company. The firm is engaged in the exploration, development, and production of sulphate of potash (SOP). It operates through the Valleyfield and Blawn Mountain projects. The Valleyfield project involves in producing SOP through the Mannheim process. The Blawn Mountain project focuses on the exploration of alunite to produce SOP, co-product sulphuric acid, and alumina. The company was founded on February 16, 2011 and is headquartered in Mississauga, Canada.