|1907||Founded by Hokkaido Colliery Steamship Company and the British firms Sir W.G. Armstrong, Whitworth & Co., Ltd. and Vickers Sons and Maxim, Ltd. The headquarters and factory are located in Muroran, Hokkaido.|
|1915||The headquarters is moved to Tokyo.|
|1920||The Hiroshima Plant is established with the purchase of Hiroshima Seisakusho Co., Ltd.|
|1936||Construction of the Yokohama Plant is completed and goes into operation.|
|1950||The Japan Steel Works, Ltd. is dissolved and reestablished.|
|1969||Offices are established in New York, Dusseldorf, and Tehran.|
|1975||Offices are established in Los Angeles, Houston, and Singapore.|
|1978||Japan Steel Works America, Inc. is established in the United States.|
|1983||Relocation of Yokohama Plant is completed.
The Beijing Office is established.
The company is awarded the Deming Application Prize.
|1988||Fine Crystal Co., Ltd. is established.|
|1990||JSW Plastics Machinery, Inc. is established in the United States.
(merged into Japan Steel Works America, Inc. in 2017)
|1992||JSW Plastics Machinery (S) Pte. Ltd. is established in Singapore.
(company name is changed into The Japan Steel Works (Singapore) Pte. Ltd. in 2014)
|1994||ISO 9001 and 9002 certification 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 in Taiwan.|
|2003||JSW Plastics Machinery Trading (Shanghai) Co., Ltd. is established in China.
(merged into JSW Machinery Trading (Shanghai) Co., Ltd. in 2014)
|2005||The Shanghai Office is established.|
|2006||Tahara Machinery Ltd. is acquired.|
|2007||The company marks the centenary year of its founding.
The headquarters is moved to Osaki in Tokyo.
|2008||JSW Machinery Trading (Shanghai) Co., Ltd. is established in China.
Alliance with Meiki Co., Ltd. begins.
|2009||Japan Steel Works India Private Limited is established in India.|
|2010||JSW Machinery (Ningbo) Co., Ltd. is established in China.|
|2012||Japan Steel Works Europe GmbH is established in Germany.|
|2014||JSW AFTY Corporation is established.|
|2015||SM Platek Co., Ltd. in South Korea is acquired.|
|2019||GM ENGINEERING Co., Ltd. is acquired.
Nichiyu Machinery Co., Ltd. is acquired.
|2020||Meiki Co., Ltd. is merged into the company.
Japan Steel Works M&E, Inc. is established.