The new facilities, mainly scattered in northern Henan, will supply a total of 500,000 m3 of CBM (coalbed methane) daily. Coalbed methane is a form of natural gas extracted from coal beds. It has become an important source of green energy in China in recent years.

Greka signed a contract with the Chinese government on CBM exploitation in 1997. The company spent the following 11 years coming up with the advanced technology necessary to exploit CBM in the country, which has an abundance of CBM resources ranking third in the world.

According to the country's 2011-2015 plan for CBM development, China aims to increase its methane output to 30 billion cubic meters every year by 2015, informed Xinhuanet.