Sumco
SUMCO CORPORATION is a Japan-based company principally engaged in the manufacture and sale of high-purity silicon. The Company operates High-purity Silicon segment, which is mainly involved in the manufacture and sale of various silicon wafers for semiconductors, including polished wafers, epitaxial wafers and other semiconductors applied in the manufacture of memory products and micro processing units (MPUs). The Company manufactures polished wafers of diameters and epitaxial wafers with special processing on the surface at domestic and overseas manufacturing bases.