Sany Heavy Equipment “the new age about coal mining” exhibition was opening in Chang Sha. In 30th April 2010, there were 260 customer representatives attendance Hunan province Chang Sha “the new age about coal mining” exhibition.

Both the newly found Leijiaqu Coalfield of Zhangwu County and the Badaohao Coalmine of Heishan County are located in the Heishan Basin. Liaoning No.101 and No.107 Coal Exploration Crew conducted the coal resource prospecting work in Leijiaqu successively since 1970s.