SHANGHAI - China's comprehensive import price index for liquefied natural gas (LNG) dropped last week, according to Shanghai Petroleum and Natural Gas Exchange (SHPGX).

The LNG index, not including tax, came in at 3,232 yuan ($464) per ton from Dec 23 to 29, down 2.2 percent from the previous week.

The index, jointly developed by a monitoring center under the General Administration of Customs and the SHPGX, was launched on Oct 16, 2019 and is due on a weekly basis to offer a new pricing reference for importers.