On December 19, 2012, China national petroleum corporation announced that the second line of west-east gas connect long trunk and o (rain ridge to shenzhen island) pipe and branch lines were successfully produced on the day of Hong Kong, the second line of west-east gas to the Hong Kong air supply conditions.

The second line of west-east gas for long pipeline from shenzhen rain ridge points lose pigging station, from the northeast to the southwest of laying, shawan across the sea in shenzhen, shenzhen bay island arrived in shenzhen in shenzhen gas transport hub station. Line length 61.05 km, of which land line length of 52.05 kilometers, sea section of line 9 kilometers long.

Branch in Hong Kong from shenzhen island QiZhan points to lose pressure, the outbound tunnel via shenzhen island, after arriving at the sea point by the submarine pipeline to Hong Kong so gas transmission station, line the total length of 20.8 km. The land line length of 0.8 kilometers, sea route is 20 kilometers long.

The second line of west-east gas transmission in the central Asian gas will be mainly used for the black point power station power generation in Hong Kong. At that time, a quarter of the electricity consumption of Hong Kong will be central Asian gas into green power. Plan according to the government of the Hong Kong special administrative region to Hong Kong in 2015 gas ratio will rise to more than 50%. The opening of the pipeline gas supply will greatly ease the tight gas in Hong Kong, reduce pollutant emissions, power environmental improvement in Hong Kong.