U.S. Electrofused Minerals, Inc., (established in 1982) is part of the Curimbaba Group. The Curimbaba Group is one of the largest producers and distributors of fused oxides in the world.

As representative of Elfusa in the US market, USEM not only distribute Elfusa´s products but also manufacture industrial minerals grains and powders. USEM is specialized in brown, white and pink fused aluminum oxides, black and green silicon carbides, sintered and activated bauxites. Our portfolio of industrial minerals includes fused mullite, magnesia alumina spinel, calcium aluminate cements, and other fused and sintered materials.