NAMISA is a mining complex owned and operated by CSN situated in Brazil's Quadrilátero Ferrífero (QF) region, Minas Gerais state. The operation is comprised of two mines, Engenho and Fernandinho, which both produce a mix of lump, fines and concentrate products that serve the seaborne export market. In Q2 2018, CSN completed the construction of a high-intensity magnetic separation plant (Concentração Magnética de Alta Intensidade (CMAI)) at Fernandinho. The facility, similar to the one built at Casa de Pedra, now allows the mine to now produce a high-grade concentrate product from its tailings. In November 2015, CSN and the Asian consortium JKTC (formed by JFE, Posco, Itochu, KSL, Nisshin and China Steel Corporation) concluded a strategic alliance to merge their mining and logistics assets under a new company, Congonhas Minérios.