Koa Shoji Holdings Co., Ltd. engages in the manufacture, stock and sale of pharmaceutical ingredient and pharmaceuticals. It operates through the Drug Sustance Sales and Pharmaceutical Manufacturing and Sales segments. The Drug Sustance Sales segment imports and sells raw materials for drugs. The Pharmaceutical Manufacturing and Sales segment manufactures and sells prescription pharmaceuticals and drugs for general use. The company was founded in January 2015 and is headquartered in Yokohama, Japan.