[5] In 1999 a subsidiary Xishan Coal and Electricity Power was incorporated and floated on Shenzhen Stock Exchange in 2000.

[5] The capital raised from the IPO was used to acquire 1 additional mine (Chinese: 西铭矿) and two factories from Xishan Coal Electricity Group.

[3] In 2009, one of the mine (Chinese: 屯兰煤矿) of Xishan Coal Electricity Group in Gujiao had a pre-dawn explosion.

(Xishan, River East, West Huo Chinese: 西山,河东, 霍西)[1]: 2  but according to the publication of the National Energy Administration of China, the production capability per year for three mines (Chinese: 德顺煤业, 亚辰煤业, 晟聚煤业) were disclosed with a capability of just 1.8 million tons of coal per year in 2015.

[9] Moreover, the two mines in Gujiao, which had a combined 9 million tons capability per year, were listed under parent company Shanxi Coking Coal Group instead.