Sulige Gasfield is located mainly in Erdos, Inner Mongolia Autonomous Region and Dingbian County, Shanxi Province. It is a strategic succeeding area of natural gas for Changqing Oil Field Company, PetroChina. There are 5 gas processing plants. The first plant has an annual natural gas processing capacity of 3 billion cubic meters and the others 5 billion. The sixth plant is under construction and to be operational by the end of 2013, resulting in a total capacity of gathering and transferring, and processing will reach 28 billion in Sulige once it is put into production.