|1907||Founded by Hokkaido Colliery Steamship Company and the British firms Sir W.G. Armstrong, Whitworth & Co., Ltd. and Vickers Sons and Maxim, Ltd., with capitalization of 10 million yen. The headquarters and factory are located in Muroran, Hokkaido.|
|1915||The headquarters are moved to Tokyo.|
|1920||The Hiroshima Plant is established with the purchase of Hiroshima Seisakusho Co., Ltd., a company located outside the city of Hiroshima.|
Construction of the Yokohama Plant begins in Kanazawa-cho, Kanagawa Prefecture.
The plant is completed in June 1936 and goes into operation.
Construction of the Tokyo Plant begins in Fuchu-cho, Kitatama-gun, Tokyo-fu.
The plant is completed in May 1941 and goes into operation.
|1950||The Japan Steel Works, Ltd. is dissolved and reestablished with capital of 200 million yen. The new company takes over operations at the four plants in Muroran, Hiroshima, Yokohama, and Tokyo as well as the headquarters and other offices.|
|1969||Offices are established in New York, Düsseldorf, and Tehran.|
|1975||Offices are established in Los Angeles, Houston, and Singapore.|
|1978||Japan Steel Works America, Inc. is established.|
Operations begin at the new Yokohama Plant.
The Beijing Office is established.
The company is awarded the Deming Application Prize.
The company enters the information systems business.
Construction of the Fuchu Intelligent Park begins on the site of the former Tokyo Plant.
|1990||JSW Plastics Machinery, Inc. is established in the United States.|
|1991||The Technology Development Center is completed on the Hiroshima Plant premises.|
|1994||ISO 9001 and 9002 certifi cation is acquired.|
|1997||JSW Plastics Machinery (H.K.) Co., Ltd. is established in Hong Kong.|
|1998||ISO 14001 certification is acquired.|
|2000||JSW Plastics Machinery (TAIWAN) Corp. is established.|
The 10,000-ton press at the Muroran Plant is upgraded to a maximum upsetting force of 14,000 tons.
JSW Plastics Machinery (C) Corp. is established in China.
|2005||The Shanghai Office is established.|
The company marks the centenary year of its founding.
The headquarters are moved to Osaki in Tokyo.
Construction of the No. 4 assembly factory is completed at Hiroshima Plant.
JSW Machinery Trading (Shanghai) Co., Ltd. is established in China.
|2009||Japan Steel Works (INDIA) Private Limited is established.|
|2010||JSW Machinery (Ningbo) Co., Ltd. is established in China.|
The Düsseldorf Office is made a local subsidiary.
Japan Steel Works Europe GmbH is established.
The Japan Steel Works (Singapore)Pte.Ltd. is established.
JSW AFTY Corporation is established in Tokyo.
|2015||SM PLATEK Co.,LTD. (SMP) in Korea becomes a subsidiary of JSW.|
|2016||Meiki Co.,Ltd. becomes wholly-owned subsidiary.|