| 1886 |
東京製綱会社（資本金7万円 東京府麻布区）創立 |
| 1887-03-31 |
Founded: April 1, 1887 (Meiji 20) |
| 1893 |
Changed the company name to the current Tokyo Rope Manufacturing Co., Ltd. due to the Commercial Code enactment |
| 1896 |
Listed on the Tokyo Stock Exchange |
| 1897 |
Established Fukagawa Factory (began manufacturing wire ropes domestically) |
| 1906 |
Established Kokura Factory (wire rope manufacturing) |
| 1912 |
Period from 1912 to 1926 |
| 1925 |
Established Kawasaki Factory (manufacturing wire ropes and hemp ropes) |
| 1926 |
Period from 1926 to 1989 |
| 1951 |
Established Research Institute (introduced a series of advanced machines, streamlined and modernized production facilities) |
| 1959 |
Established Toko Trading Co., Ltd. (sales of steel wire ropes and steel wires) |
| 1960 |
Established Tohshin Steel Industry Co., Ltd. (rolling of high-grade wire materials) |
| 1964 |
Established Tokyo Rope Iwata Works Co., Ltd. (manufacture of ultra-fine wire ropes) later renamed Tokyo Rope Iwata Works Co., Ltd. |
| 1964 |
Merged with Toyo Steel Wire Co., Ltd. (wire rope manufacturing) and established Izumisano Factory |
| 1968 |
Established Tokyo Steel Fiber Rope Co., Ltd. (fiber rope manufacturing) |
| 1970 |
Relocated and expanded Kawasaki Factory, establishing Tsuchiura Factory on a global scale |
| 1970 |
Established Tokyo Steel Wire Co., Ltd. (steel cord manufacturing) |
| 1970 |
Established Toko Machinery Manufacturing Co., Ltd. (machinery for steel wire and steel rope manufacturing) |
| 1970 |
Relocated and expanded the Kawasaki Factory, establishing the Tsuchiura Factory on a global scale (manufacturing steel wire ropes, road safety facilities, etc.) |
| 1971 |
Merged with Osaka Rope Industry Co., Ltd. (wire rope manufacturing) |
| 1971 |
Merged with Osaka Rope Industry Co., Ltd. (wire rope manufacturing) |
| 1981 |
Established ATR Wire & Cable Co., Inc. in Danville, Kentucky, USA (steel cord and bead wire manufacturing) |
| 1985 |
Merged with Nippon Iron Rope Industry Co., Ltd. (wire rope manufacturing) |
| 1987 |
Celebrated 100 years since founding |
| 1988 |
Established Tokyo Steel Wire Tech Co., Ltd. (wire rope maintenance) |
| 1999 |
Liquidated Tokyo Steel Wire Iwata Works Co., Ltd. |
| 2000 |
Production suspension at Toko Steel Industry Co., Ltd. |
| 2001 |
Merged with Toko Trading Co., Ltd. |
| 2001 |
Established Toko Tech Co., Ltd. (civil engineering and construction work) |
| 2001 |
Merged with Toko Trading Co., Ltd., established Toko Techno Co., Ltd. (civil engineering and construction work) |
| 2002 |
Closed Ogura Factory |
| 2003 |
Consolidated Izumisano Factory into Sakai Factory |
| 2003 |
ATR Wire & Cable Co., Inc. filed for Chapter 11 bankruptcy reorganization in the United States and was liquidated |
| 2003 |
Consolidated the Izumisano Factory into the Sakai Factory, ATR Wire & Cable Co., Inc. filed for Chapter 11 bankruptcy proceedings in the United States and was liquidated |
| 2004 |
Opened Shanghai Office |
| 2004 |
Established Jiangsu Shuangyou Toko Metal Products Co., Ltd. in Jiangyin, Jiangsu Province, China (bridge wire manufacturing) |
| 2004 |
Reorganized group companies to restructure sales of wire rope products: Established Toko Wire Rope East Japan, Naigai Iwata Co., Ltd., Toko Wire Rope West Japan, and Hokkaido Toko Co., Ltd. |
| 2004 |
Established Shanghai Office, established Jiangsu Shuangyou Toko Metal Products Co., Ltd. (manufacturing bridge wire) in Jiangyin City, Jiangsu Province, China, and reorganized group companies |
| 2005 |
Tokyo Rope Manufacturing Overseas Business Investment Corporation (Investment in overseas business) established |
| 2005 |
Established Tokyo Rope (Changzhou) Co., Ltd. in Changzhou, Jiangsu Province, China (Manufacture of steel cords for tires) |
| 2005 |
Established Tokyo Rope Overseas Business Investment Co., Ltd. (investment in overseas business), established Tokyo Rope (Changzhou) Co., Ltd. (manufacturing steel cords for tires) in Changzhou, Jiangsu Province, China |
| 2006 |
Established Tokyo Rope Vietnam Limited Liability Company (Elevator Rope Manufacturing) |
| 2006 |
Established Tsuribashi Design Corporation (Design Consultant) |
| 2006 |
Established Tokyo Rope Vietnam Limited Liability Company (elevator ropes), established Tsuri Bridge Design Co., Ltd. (design consulting) |
| 2007 |
Merged with Tokyo Rope Steel Cord Corporation |
| 2008 |
本社事務所移転（中央区日本橋） |
| 2009 |
Merged with Higashitsuna Machinery Manufacturing Co., Ltd. |
| 2010 |
Established Kazakhstan Office in Almaty, Republic of Kazakhstan |
| 2010 |
Established Hong Kong Office |
| 2010 |
Established Tokyo Rope (Changzhou) Machinery Co., Ltd. in Changzhou, Jiangsu Province, China (Wire Saw Manufacturing) |
| 2010 |
Established Moscow Office in Moscow, Russia |
| 2010 |
Established Tokyo Rope Malaysia (Steel Wire Manufacturing) in Johor, Malaysia |
| 2010 |
Established Kazakhstan Office in Almaty, Hong Kong Office, established Tokyo Rope (Changzhou) Machinery Co., Ltd. (wire saw manufacturing) in Changzhou, Jiangsu Province, China, established Moscow Office in Moscow, Russia, established Tokyo Rope Malaysia (wire saw manufacturing) in Johor, Malaysia |
| 2011 |
Established Tokyo Rope (Shanghai) Trading Co., Ltd. |
| 2012 |
Established Tokyo Rope Engineering Limited (in Moscow) |
| 2012 |
Established Tokyo Rope (Hong Kong) Limited |
| 2012 |
Established Cable Technologies North America, Inc. |
| 2012 |
Established Tokyo Rope Engineering Limited (in Moscow), established Tokyo Rope (Hong Kong) Limited, established Cable Technologies North America, Inc. |
| 2013 |
Established Higashitsuna Wire Rope Sales Corporation |
| 2013 |
Separated Kitatake Factory and established Higashitsuna Steel Cord Corporation |
| 2013 |
Established Toko Wire Rope Sales Co., Ltd., spun off the Kitakami Factory to establish Toko Steel Cord Co., Ltd. |
| 2014 |
Renamed Cable Technologies North America, Inc. to Tokyo Rope USA, Inc. |
| 2014 |
Renamed Cable Technologies North America, Inc. to Tokyo Rope USA, Inc. |
| 2015 |
Established Tokyo Rope Corporation Bangkok Representative Office |
| 2016 |
Established Tokyo Rope Almaty LLP |
| 2016 |
Established Tokyo Rope Almaty LLP |
| 2017 |
TR Engineering LLC Establishment |
| 2017 |
Establishment of Tokyo Rope & Cable International Co., Ltd. |
| 2017 |
Established TR Engineering LLC, established Tokyo Rope International Co., Ltd. |
| 2022 |
本社事務所移転（江東区永代） |
