The plant converts locally mined subbituminous coal into synthetic natural gas (SNG) and will produce around two billion cubic meters of SNG per year in its first stage of completion.

With a length of 18m, an inside diameter of three meters and weighing more than 200 tons, the coal gasifiers can process up to 2,000 tons of coal per day.

The coal gasification facility is scheduled to go on line by the end of 2014, Siemens said.