Minsur S.A. operates as a mining company. It explores for tin, gold, ferroalloys, copper, niobium, silver, molybdenum, and tantalum properties. The company’s projects include San Rafael, a tin mining unit located in the Puno region, Peru; Pucamarca, a gold mining unit located in the Tacna region, Peru; and Pitinga, a tin, niobium, and tantalum mining unit located in the state of Amazonas, Brazil. It also engages in the production and commercialization of cement, concrete, mortars and aggregates in Chile. The company was incorporated in 1977 and is based in Lima, Peru. Minsur S.A. operates as a subsidiary of Breca Mineria S.A.C.