Tintaya (Quechua for the cocoon which contains the chrysalis of the moth) is a Peruvian copper mine. It was owned by the Swiss corporation Xstrata (now merged with Glencore). The mine is located in the Cusco Region, Espinar Province, Yauri District, southeast of Yauri.[1] [2] The ore processing rate is at 200,000 tonnes per year and the construction phase of the mine asked for US$1.5 billion investment. Bechtel was hired for feasibility and EPCM for the mine.[3]