Mineracao Usiminas S.A., or MUSA, is a mid-sized surface mining complex located in the Quadrilátero Ferrífero (QF) region of Minas Gerais state, Brazil. It is 70% owned by Usiminas, a Brazilian steel producer, and 30% by Sumitomo. Production at MUSA dropped substantially over the past few years due to weak market conditions and as Usiminas' Cubatao steel operation was closed in 2015. As domestic steel demand rises, Ipatinga — Usiminas' sole steel mill in operation in Brazil — will inevitably consume more iron ore to boost its steel output. This, along with higher export volumes, will trigger MUSA to increase its total production by approximately 50% between 2018 and 2019.