OSAKA STEEL CO., LTD. was established in preparation for the merger of DAITETSU STEEL INDUSTRIAL CO., LTD. and YAMATO STEEL CO., LTD.
OSAKA STEEL CO., LTD. acquired the two companies and commenced operation.
Acquired NITTETSU KOKI CO., LTD. and relocated its plant to Tsumori Works as a processing plant.
Established OSAKA BUSSAN TRADING CO., LTD. as a subsidiary.
OSAKA SHIN UNYU CO., LTD. as a subsidiary.
Established NIHON STEEL CO., LTD. as a subsidiary.
Acquired the management rights to NISHI-NIPPON STEEL CO., LTD.
Reorganized as a subsidiary of NIPPON STEEL CORPORATION (presently NIPPON STEEL CORPORATION) following capital increase by allotment of new shares to third parties.
Listed on the Second Section of the Osaka Stock Exchange.
Merged with NISHI-NIPPON STEEL CO., LTD., naming its plant Nishi-Nippon Works (presently Nishi-Nippon Kumamoto Works); acquired NISHIKO U TRANSPORT SERVICE CO., LTD. as a subsidiary as a result of the merger.
Listed on the Second Section of the Tokyo Stock Exchange.
Listing transferred to the First Section of the Tokyo Stock Exchange and the Osaka Stock Exchange.
Commenced the operation of a rolling mill at Sakai integrating Tsumori and Dai-ni rolling mills.
Established SHIN-HOKKAI STEEL CO., LTD. as a subsidiary.
Acquired KANSAI BILLET CENTER CO., LTD. and named its steelmaking plant Sakai Works.
Acquired ISO9001 certification for Osaka Steel’s Okajima Works (presently Osaka Unit Okajima Works) and Sakai Works (presently Osaka Unit Sakai Works).
Acquired ISO9001 certification for Osaka Steel’s Nishi-Nippon Works (presently Nishi-Nippon Kumamoto Works).
Acquired ISO14001 certification for OSAKA STEEL CO., LTD.
Reorganized NIHON STEEL CO., LTD. as a wholly-owned subsidiary.
Jointly established PT. KRAKATAU OSAKA STEEL (KOS) with state-run company PT. KRAKATAU STEEL (Persero) Tbk. in Cilegon, Banten Province, Indonesia.
Dissolved the subsidiary Shin-Hokkai Steel Co., Ltd.
Concluded a final agreement on the joint manufacturing and sales operation of medium/small steel and iron reinforcing bars and flat bars with PT. KRAKATAU Tbk.
Acquired TOKYO KOHTETSU CO., Ltd as a subsidiary in the Tender Offer. Suspended production of a steelmaking process of Osaka Okajima Works (presently Osaka Unit Okajima Works), and transferred its production to a steelmaking process of Sakai Works (presently Osaka Unit Sakai Works).
PT. KRAKATAU OSAKA STEEL started commercial production.
Set up the Osaka Unit, which supervises Osaka Okajima Works and Sakai Works, and renamed Osaka Okajima Works as Osaka Unit Okajima Works, and Sakai Works as Osaka Unit Sakai Works.
Acquired NIHON STEEL CO., LTD and named its plant Kishiwada Works.
Transferred to the Standard Market in conjunction with restructurning of Tokyo Stock Exchange’s market segments.
Stopped the rolling process at the Osaka Unit’s Okajima Works and transferred the production to the Unit’s Sakai Works.
Dissolved OSAKA BUSSAN TRADING CO., LTD.
