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The Maruzen Group began as Maruzen Ironworks, which was founded in 1919 as a boilermaker. The company changed its name to Maruzen Co., Ltd., upon the opening of the Keiyo Oil Terminal in 1967 and converted its operations at the time into those performed by a tank terminal operator. Subsequently, the company spun-off logistical processes in order to provide specialized support to clients and diversify its business. The Maruzen Group presently comprises three companies: Maruzen Co., Ltd.; Keiyo Butsuryu Co., Ltd.; and Maruzen Irios Co., Ltd. By harnessing the know-how acquired as a former boiler maker and the knowledge and experience that we have cultivated over many years of operations, the Maruzen Group is committed to remaining an integrated, comprehensive logistics company for chemical products.