Oenon Holdings, Inc. operates in alcoholic beverages, enzyme pharmaceuticals, real estate, and other businesses based on fermentation-derived biotechnologies in Japan. It offers alcoholic beverages such as shochu, sake, chuhai, synthetic sake, plum wines and liqueurs, spirits, imported wines, and ready-to-drink beverages, along with alcoholic beverage ingredients, industrial alcohol, and seasonings. The company also supplies enzymes including lactase, glucose isomerase, isoamylase, cellulase, and inulinase for food applications, plus protease for food, research, and diagnostics. It provides contract manufacturing, diagnostic medicines, and outsourced fermentation services, and is involved in real estate purchase, sale, and leasing, as well as warehousing, transportation, and cargo handling. The company exports its products and was incorporated in 1920, headquartered in Tokyo, Japan.