Ube Industries, Ltd. (宇部興産株式会社, Ube Kōsan Kabushiki-gaisha^?)(TYO: 4208) is a Japanese chemical company.

In 1897, Sukesaku Watanabe (an industrialist,a member of the House of Representatives of Japan and a deputy mayor of Ube) established Okinoyama Coal Mine,the predecessor of the present Ube industries. Since then, the company has established four core business units: Chemicals, Cement and Construction Materials, Energy and Machinery. (Ube industries is called "Ube-Kosan" in Japanese. "Kosan" means Expanding new businesses one by one for the local community).

The presidents of the Ube Chamber of Commerce and Industry are elected from retired persons of The company. Serving president Yasuhisa Chiba (he was Representative Director of Ube industries) also holds the post of vice chairperson of the Chemical Society of Japan. Some employees of the Ube Group are elected to assemblyman.

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UBE Group is doing business worldwide, especially Thailand(Rayong Province) and Spain(Province of Castellón) are main sites for petrochemical business. UBE Chemicals(Asia) Public Company Ltd.(UCHA) is one of the cogent chemical companies in Thailand. The company is the sole caprolactam producer in Thailand. Dr. Charunya Phichitkul, the president of UCHA also holds the post of vice chairperson of the petrochemical Industry Club The Federation of Thai Industries.