Nippon Chemical Industrial Co., Ltd. engages in the manufacture and sale of chemical products. It operates through the following segments: Chemical Products, Functional Products, Leasing, Air Conditioning-Related, and Others. The Chemical Products segment offers phosphorus, chromium, and silica products. The Functional Products segment provides electronic material-related products such as battery, circuit, and electronic ceramic materials. It also sells phosphine derivatives, pharmaceutical intermediates, and pesticides. The Leasing segment rents out and manages real estate properties. The Air Conditioning-Related segment designs, constructs, and sell air conditioning equipment. The Others segment includes bookstore business. The company was founded by Toragoro Tanahashi in September 1893 and is headquartered in Tokyo, Japan.