1966
Sichuan Air Separation Plant Factory was established as a specialized air separation unit manufacturer in Zigong, Sichuan, China.

1967
The factory moved to Jianyang, Sichuan, China.

1971
The factory made the first air separation plant with a capacity of 1000Nm³/h.

1983
By forming its own sales team, the factory was no longer just a production-only factory, but a supplier with services.

1984
The 400m³ cryogenic storage tank was successfully made.

1987
The factory obtained pressure vessel design and manufacture certificate (A Class).

1990
The factory got ASME certificate and U, U2 stamp issued by the National Board of Boiler and Pressure Vessel.

1991
Hangzhou Chuankong General Equipment Co., Ltd was established.

1996
Sichuan Air Separation Plant (Group) Co., Ltd (SASPG) was named, including Sichuan Air Separation Plant Factory, Jianyang Heat Exchange Factory, Sichuan Hemispherical Vessel Head Manufacturing Co., Ltd., and Sichuan Jianyang Chahu Air Separation Technology Development Center.

1997
SASPG cooperated with Air Liquide for the development of 6000Nm³/h air separation plant.

1998-2000
SASPG cooperated with Praxair, and this period witnessed the quick technical development of SASPG.

2001
SASPG transformed from a state-owned company to a joint stock company.

2005
The 28000Nm³/h air separation unit was developed with out patent technology.

2010
Zhejiang Dachuan Air Separation Plant Co.,Ltd. was established in Huzhou, Zhejiang, fully held by SASPG.

Till 2013
Now SASPG has 40 subsidiary companies and holding companies. We have produced more than 2000 sets of air separation plants, more than 8000 pieces of cryogenic storage tanks, more than 100 sets of CO2 generators, etc. They were delivered to customers in more than 50 countries.