Mile Stone

>> 1950
Established and named Liling First Industry Ceramic Factory.

>> 1959
Begin to produce 6kV & 12kV bushing and pin type insulator.

>> 1970
Renamed Lujiang ceramic factory.

>> 1971
The first to produce 110kV instrument transformer bushing. in China.

>> 1972
Renamed Lujiang Electric Power Insulator and Apparatus Factory.

>> 1973
Begin to produce 110kV voltage transformer and current transformer.

>> 1984
The first to produce DC suspension insulator.

>> 1988
Renamed Hunan Electric Power Insulator and Apparatus Factory.

>> 2000
Finished reformation and renamed Sandian Electric Group company

>> 2001
Started to export the products.

>> 2009
The new built transformer making workshop finished and began put into production.

>> 2011 
 Belongs to China Energy Engineering Group Co., Ltd.(CEEC) directly.
 Renamed Hunan Electric Power Insulator and Apparatus Co., Ltd.