| Jun. 1928 |
Tsunekawa Ironworks was founded. Began stamping business |
| Sep. 1934 |
Began business relationships with Toyoda Automatic Loom Works, Ltd. |
| Aug. 1937 |
Began business relationships with Toyota Motor Corporation |
| Feb. 1940 |
Added facilities for drawn and cold finished steel bar |
| Jun. 1948 |
Changed name to Sango Manufacturing |
| Jun. 1950 |
Incorporated to form Sango Co., Ltd. |
| Sep. 1950 |
Takakura Plant was established(former Nagoya Plant, current Head Office) |
| Mar. 1954 |
Production of muffler and exhaust system had began |
| May. 1962 |
Muffler and exhaust system laboratory was established at Nagoya Plant |
| Jun. 1963 |
Completed Toyota Plant |
| Dec. 1965 |
Tooling Department was reorganized as an independent company, Sanko Seiki Co., Ltd. |
| Aug. 1967 |
Miyoshi Plant was established (plant specializing in cold finished steel bars) |
| Oct. 1970 |
Shipping Department was reorganized as an independent company called Sanai Unyu Co., Ltd. |
| Jul. 1971 |
Sanwa Koki was founded |
| Feb. 1972 |
Began business relationships with Daihatsu Motor Co., Ltd. |
| Apr. 1973 |
Bulge processing department was reorganized as an independent company called Shinwa Bulge Co., Ltd. |
| Aug. 1973 |
Sanritsu Co., Ltd. was founded |
| Aug. 1973 |
Completed Fukuta Plant |
| Nov. 1973 |
Completed engineering and technical research center at the Toyota Plant |
| May. 1976 |
The Toyota Production System was introduced in Sango operations |
| Feb. 1977 |
Tube mill was installed |
| Nov. 1984 |
Completed Takaoka Plant |
| Dec. 1986 |
Completed Toyohashi Plant |
| Jan. 1987 |
Arvin Sango, Inc., a joint venture with Arvin Industries, was founded in the United States (started oversea operations) |
| May. 1990 |
Completed Yawatayama Plant |
| Aug. 1994 |
Technical Center at Yawatayama Plant was built |
| Oct. 1995 |
Takaoka Plant received the Director-General Award from the Agency of Industrial Science and Technology |
| Nov. 1995 |
TPM Prize of Excellence (highest rank) was awarded to Automotive Parts Division |
| Apr. 1996 |
YS Pund, a joint venture, was founded in Thailand |
| Jul. 2000 |
Fukuta Plant received certification for ISO 14001 (Environmental Management) |
| Aug. 2000 |
Miyoshi and Takaoka Plants received certification for ISO 14001 (Environmental Management) |
| Mar. 2002 |
Sango Komeno Co., Ltd. was founded |
| Apr. 2002 |
Sango Turkey, Inc. was founded in Turkey. |
| Aug. 2002 |
Completed the Miyoshi No. 3 Plant |
| Jan. 2003 |
Sanpuku Co., Ltd. was founded in Kyushu |
| May. 2003 |
Tianjin Sango Automotive Parts Co., Ltd. was founded in China |
| Aug. 2004 |
Guangzhou Sango Automotive Parts Co., Ltd. was founded in China |
| Oct. 2005 |
Group businesses Sanko Seiki and Shinwa Bulge were integrated into Sango Co., Ltd. |
| Feb. 2007 |
Sango Hokkaido Co., Ltd. was founded |
| Mar. 2008 |
Sango Mie Co., Ltd. was founded |
| Jun. 2008 |
80th anniversary of company founding was celebrated |
| Nov. 2008 |
Sango Kanto Co., Ltd. was founded |
| Apr. 2010 |
Sango Mie Co., Ltd. was merged with Sango Komeno (The new company was named Sango Mie) |
| Sep. 2011 |
Arvin Sango Canada, Inc., a subsidiary of Arvin Sango, Inc. was founded in Canada |
| Apr. 2012 |
PT. Sango Indonesia was founded in Indonesia |
| Apr. 2012 |
Xiangyang Sango Automotive Parts Co., Ltd. was founded in China |
| Dec. 2012 |
Sango India Automotive Parts Pvt. Ltd. was founded in India |
| Nov. 2013 |
Sango Thai Automotive Parts Co., Ltd. was founded in Thailand |
| Apr. 2014 |
Tsunekawa Tekkosho Institute Co., Ltd. was founded |
| Dec. 2014 |
Sango Auto Parts Mexico, S.A. de C.V. was founded in Mexico |
| Jun. 2015 |
2nd Technical Center was built at Sango's Toyota Technical Center (former Toyota Plant) |
| May. 2016 |
Guangzhou Sango R & D Center was built in China |
| Oct. 2017 |
ASI Technical Center was built in the United States |
| Jun. 2018 |
90th anniversary of company founding was celebrated |
| Oct. 2018 |
Sango Mie Co., Ltd. was merged with Sango Co., Ltd. |
| Apr. 2019 |
Sango Corporation Ltd. was merged with Sango Co., Ltd. |
| Jul. 2020 |
YS Pund Co., Ltd was merged with Sango Thai Automotive Parts Co., Ltd. In Thailand (The new company was named SANGO Thai Engineering & Manufacturing Co., Ltd. ) |
| Apr. 2021 |
TTI changed its name to Sango Technical Research Institute, Ltd. and Sango Family Services to Sango Partners Co., Ltd. |
| Jun. 2021 |
Sango received accreditation for ISO 9001:2015 |
| May. 2023 |
Built the new press building at Fukuta Plant |
| Apr. 2024 |
Sango Technical Research Institute, Ltd. changed its name to SANGO MachineTech Co., Ltd. |
| Oct. 2024 |
MEGLiS Co., Ltd. was founded |
| Apr. 2025 |
Sanpuku Co., Ltd. changed its name to SANGO Kyushu Co., Ltd. |
| May. 2025 |
Built the Fukuta Distribution Center at Fukuta Plant |
