Maruzen Petrochemical Co., Ltd.

Maruzen Petrochemical Co., Ltd. (丸善石油化学株式会社) is a Japan-based petrochemical manufacturer focused on basic chemicals and intermediates. The company operates steam-cracking facilities to produce olefins such as ethylene and propylene, and manufactures aromatics including benzene, toluene, and xylene, along with related derivatives and solvents. Its products serve as key feedstocks for plastics, synthetic rubber, fibers, resins, and a wide range of industrial chemicals.

Maruzen Petrochemical also participates in downstream polymer production—such as polyethylene and ethylene-vinyl acetate—through joint ventures, supplying domestic and international customers across packaging, automotive, construction, and electronics supply chains. The company plays a significant role in Japan’s petrochemical value chain by providing core building-block materials and collaborating with partners to convert them into specialty and commodity plastics.