| 2014 |
Changchun Sinogas and Jilin Clean Energy (as to 51% of its equity interest) were acquired, together with six gas refuelling stations registered under their respective branch companies or refuelling stations |
| 2013 |
Jixi United Strength was established to expand gas refuelling business in Jixi City, Heilongjiang Province
|
| Changchun Yitonghe started to implement separate management and operation of gas refuelling business and petroleum refuelling business under Yitonghe Group |
| 2010 |
Wuchang Gas was acquired to expand gas refuelling business into Heilongjiang Province |
| 2007 |
Longjing United Strength was established to engage in gas refuelling business in Yanbian City, Jilin Province |
| 2002 |
The Group's first LPG station commenced its operation in Changchun City, Jilin Province |
| 1997 |
Changchun Yitonghe was founded to engage in gas and petroleum related business |
