Otsuka Holdings Co., Ltd. is a Japan-based company mainly engaged in the medical and nutraceuticals related business and other businesses. The Company operates through four business segments. The Medical-related segment is engaged in the sale of ethical drugs, and the research development and export of therapeutic drugs. The Nutraceuticals-related segment is engaged in the manufacture, purchase and sale of nutraceuticals-related products, such as functional food and dietary supplements. The Consumer-related segment is engaged in the manufacture and sale of consumer products and mineral water. The Others segment is engaged in the manufacture and sale of chemical products, the manufacture, sale and import of measuring equipment, and the manufacture of synthetic resin molding products.