||Sumihiro Coal Shokai Co., Ltd. established. Company begins operations as the Fukuyama area dealer of Sumitomo Coal Mining Co., Ltd.
||As energy demand shifts from coal to oil, range of products traded broadens to include petroleum products, high-pressure gases, welding materials, wireless devices and marine equipment. Company name is changed to Sumihiro Shokai Co., Ltd..
||Company begins handling steel products.
||Company begins handling main and auxiliary ship engines
||Company name is changed to Sumihiro Co., Ltd. and general trading house format adopted. Scope of business operations broadens to include trading of a full range of equipment for shipbuilders.
||Launch of shipbuilding equipment marketing and transportation businesses for the Tsuneishi Group yard at Cebu in the Philippines.
||Launch of shipbuilding equipment marketing and transportation businesses for the Tsuneishi Group yards at Xiushan in China. Company also begins importing and marketing equipment made in China.
||With the reorganization of Tsuneishi Group, 11 affiliates are integrated. Company is renamed to Tsuneishi Holdings Corporation Sumihiro Company.
||Acquisition of ISO14001 and ISO9001 certification
||Company is spun off from Tsuneishi Holdings Corporation.
Company becomes Tsuneishi Trading Co., Ltd.