Sanyu Corporation

Established Sanyu Shaft Industry Co., Ltd. in Kujo, Nishi-ku, Osaka City, for the purpose of manufacturing and selling polished bar steel. Built a factory in Higashi-Osaka City.

Founded Mitsuyo Shaft Industry Co., Ltd. in Kijō, Nishi-ku, Osaka City for the purpose of manufacturing and selling polished steel rods. Built a factory in Higashi-Osaka City.

Constructed the Hirakata Factory in Hirakata City. Completed the first phase of construction.

Completed the second phase of the Hirakata Factory. Relocated machinery and equipment from the factory in Higashi-Osaka City to the Hirakata Factory. Moved the headquarters to Hirakata City.

Completion of Phase 2 construction at the Hirakata plant. Moved machinery and equipment from the Higashi-Osaka factory to the Hirakata plant. Relocated headquarters to Hirakata City.

Built a three-dimensional warehouse (currently Hirakata Sales Office) in Hirakata City.

Constructed a three-dimensional automatic warehouse (currently Higashi-Osaka Polished Bar Steel Center) in Higashi-Osaka City.

Built Muroran Plant on the premises of Muroran Works of Nippon Steel Corporation (currently Nippon Steel Corporation) in Muroran.

Built the Muroran plant within the Muroran Iron Works of Nippon Steel & Sumitomo Metal Corporation (now Nippon Steel Corporation).

Merged with Yao Seiko Co., Ltd. (currently Yao Factory and Yao Sales Office) and changed the trade name to Sanyu Corporation. Conducted third-party allotment of shares to major clients.

Merged with Yao Steel Co., Ltd. (now Yao Office) and changed the company name to Sun Yuu Co., Ltd. Conducted a third-party allotment of capital to major clients.

Relocated and integrated production facilities for cold heading steel wire to Yao Factory, and specialized production of polished bar steel at the headquarters and Muroran factories. Listed on the Second Section of the Osaka Securities Exchange.

To reduce costs and improve quality, moved and integrated cold-rolled steel wire production equipment from the headquarters plant (now Hirakata plant) to the Yao plant, specializing production of polished steel rods at the headquarters plant and Muroran plant. Listed on the Second Section of the Osaka Stock Exchange.

Entered the stainless steel bar market. Installed peeling machines at the headquarters factory. Renovated Yao Office.

Fully entered the stainless steel rod market, installed a peeling machine at the headquarters plant. Renovated the Yao office.

Updated the draw bench at the headquarters factory.

Updated the draw bench at the headquarters plant.

Obtained ISO9001:1994 certification.

Obtained ISO 9001:1994 certification.

Updated the continuous extrusion machine at Yao Factory to state-of-the-art equipment.

Obtained ISO14001:2004 certification.

Obtained ISO 14001:2004 certification.

Increased the peeling machines at the headquarters factory. Established Sanyu Kyushu Co., Ltd. in Kikuchi City, Kumamoto Prefecture (currently Kyushu Factory and Kyushu Sales Office). Conducted third-party allotment of shares to Nippon Steel Corporation to increase capital.

Added a peeling machine at the headquarters plant. Established Sun Yuu Kyushu Co., Ltd. (now Kyushu Office) as a 100% subsidiary in Kikuchi City, Kumamoto Prefecture. Conducted a third-party allotment of capital to Nippon Steel & Sumitomo Metal Corporation, increasing capital to 151.3 billion yen.

Closed Muroran Factory.

Sanyu Kyushu Co., Ltd. commenced operations. Made Daito Steel Material Industry Co., Ltd. a subsidiary.

Sun Yuu Kyushu Co., Ltd. (now Kyushu Office) commenced operations. Acquired shares to make Daito Steel Materials Industry Co., Ltd. a subsidiary.

Listed on the Second Section of the Tokyo Stock Exchange.

Sun Yuu Kyushu Co., Ltd. was absorbed and merged.

Sun Yuu Kyushu Co., Ltd. (now Kyushu Office) was absorbed and merged.

Mitsuwa Precision Industry Co., Ltd. (now the Processing Division) was absorbed and merged. Osaka Migaki Co., Ltd. became a subsidiary.

Mitsuwa Precision Industry Co., Ltd. (now Processing Division) was absorbed and merged. Acquired shares to make Osaka Migaki Co., Ltd. a subsidiary.

Transitioned to the Tokyo Stock Exchange Standard Market.

MIYAX Co., Ltd. (now the Processing Division) was absorbed and merged.

Inherited the business of MIYAX Co., Ltd. (now Processing Division).

Received the Osaka Climate Change Action Award – Special Prize.

Received the Osaka Climate Change Action Award – Special Prize.