The San Carlos Panantza mine is a large copper mine located in the south of Ecuador in Zamora-Chinchipe Province. San Carlos-Panantza is one of the largest copper reserves in Ecuador and in the world having, estimated reserves of 600 million tonnes of ore grading 0.59% copper. The mine is in the Corriente copper belt along with the Mirador mine. It is being developed by ExplorCobres S.A., a subsidiary of the state-owned Chinese company CRCC-Tongguan Investment Co. Ltd which is also developing Mirador.