Minsur SA is a Peru-based mining company primarily engaged in the exploitation, smelting, refining and commercialization of tin. The company’s facilities include the San Rafael Mine, which is located in the department of Puno, as well as a smelting and refining plant located in Pisco. The company distributes its metals in the United States, Europe, Canada, Asia and the Middle East. Minsur was founded in 1977 and is based in Lima, Peru.