- June 1945
- Company founded: Ken-ichi Miyagawa, founder of the company began manufacturing automotibe gaskets at Fukushima-Ku, in Osaka-Shi,Osaka
- December 1950
- Incorporated under the name of Sanwa Packing Industry Co., Ltd., capitalized at 500,000 yen
- February 1953
- New factory constructed at Oyodo-Ku, in Osaka-Shi,Osaka; Head office moved to this site
- August 1957
- Capital increased to 2 million yen; production of gaskets for petrochemical plants began
- March 1962
- New factory constructed at Hattorikotobuki-Cho, in Toyonaka-Shi,Osaka; Head office moved to this site
- March 1965
- Mizushima factory constructed at Higashizuka, in Kurashiki-Shi,Okayama
- October 1965
- Capital increased to 16 million yen, Fukuroi factory constructed in Fukuroi-shi,Shizuoka; production of construction materials began
- October 1967
- Capital increased to 32 million yen
- February 1973
- Main plant constructed at Tokura, in Toyonaka-Shi,Osaka; Head office moved to this site
- October 1973
- Capital increased to 46 million yen
- January 1975
- New cylinder head gaskets developed to meet the requirement in the automobile exhaust gas regulations; and launched into the field of heat and sound insulators
- April 1981
- Mizushima factory constructed at Matsue, in Kurashiki-Shi,Okayama; Factory moved to this site
- April 1984
- Capital increased to 58.77 million yen
- March 1988
- Engine testing facilities expanded, and low temperature testing equipment introduced
- April 1989
- Capital inscreased to 99.66 million yen
- November 1990
- Siam Sanwa Industry Co., Ltd. established in Bangkok, Thailand
- December 1998
- Earned ISO9001 Certificate at Head Office Plant
- September 2000
- Installed a robot line for heatshield production at Head Office Plant
Installed a robot line for MLS gasket production at Head Office Plant - October 2001
- Installed a new heatshield material processing line at Head Office Plant
- November 2002
- Earned ISO14001 Certificate at Head Office Plant
- May 2004
- Kunshan Sanwa Engine Parts Industry Co., Ltd. established in Kunshan, China
- January 2006
- Established Harada factory at Harada-cho, in Toyonaka-Shi,Osaka, and Itami factory at Kitakawara-cho, in Itami-Shi,Hyogo
- February 2006
- Established Sanwa Trading Korea Co., Ltd. in Ansan-City, Gyonggi-Do, Korea
- December 2009
- Established Mimasaka factory in Mimasaka-Shi, Okayama
- October 2011
- Company name changed from Sanwa Trading Korea Co., Ltd to Sanwa Packing Industry Korea Co., Ltd.
Main office moved from Ansan to Busan
Busan Factory Established - March 2015
- Established Kameyama factory in Kameyama-Shi, Mie
- April 2018
- Established PT. SANWA Manufacturing Indonesia in Kab. Bekasi, Jawa Barat, Indonesia
- February 2019
- Established Sanwa Packing Industry Mexico S.A. de C.V. in Irapuato, Guanajuato, Mexico
- May 2019
- Established Tokyo Sales Office in Saitama-Shi, Saitama
- October 2019
- Kunshan Sanwa Engine Parts Industry Co., Ltd. moved to Changshu, Jiangsu, China and changed the company name to Changshu SPI Auto Parts Co., Ltd.
- July 2020
- Established Toyota Sales Office in Toyota-Shi,Aichi