- 1939 - started the production of hand grenades for military use.
- 1979 - adopted military aviation filtration technology into civil-use production.
- 1980 - began the OE supply for Cummins, Steyr and Deutz engines.
- 1983 - the spin pack filter assemble workshop was founded.
- 1985 - introduced a spin pack filter production line with one million yearly output.
- 1988 - introduced an air filter production line with one million output.
- 1993 - founded Pingyuan Filter Co., Ltd. officially.
- 1999 - founded Pinghe Filter Co., Ltd., a joint-stock company with Japan.
- 2001 - purchased 150 thousand square-meter land for building the new area of the company. 2003, new factory area was used.
- 2008 - founded Samgtos auto spare parts co.,ltd for the oversea market.
- 2011 - extending another 20 thousand square meters for workshop construction.
- 2016 - began the OE supply for Daimler Mctros, BMW Mini cooper
- ………………………………………………..………………………………………………..………………………………………………..…………………………
- 2020 - become the world first-class automobile components supplier.
