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September 1996: Zhongshan Sanmin Metal Treatment Co., Ltd. was established.
May 1999: Sanmin Company's new factory was completed (covering an area of 12,000 square meters)
July 2000: Technical cooperation with Toyo ドラ -プ co., ltd. of Japan
April 2001: Obtained ISO9001:2000 Quality Management System certification
?July 2006: Completed the second phase of infrastructure construction (covering a total area of 21,300 square meters)
July 2006: Kunshan Sanmin Tulai Electronic Materials Technology Co., Ltd. began operations.
December 2007: Obtained the ISO14001:2004 Environmental Management System certification.
December 2008: IECQ QC080000 Environmental Hazardous Substances Management System Certification
March 2009: Introduced the German IPSEN multi-purpose controllable gas carburizing furnace.
December 2010: GEOMET(Jumeite) processing technology was introduced.
August 2011: Obtained ISO/TS16949:2009 system certification
August 2012: Introduction of cryogenic technology
October 2015: Upgrading and expansion of Wastewater Treatment Plant
May 2018: IATF16949:2016 Automotive Parts Production Quality Management System Certification
September 2018: ISO14001:2015 Environmental Management System Certification