SINGAPORE: * A total 12.9 billion cubic metres of natural gas worth 26 billion yuan ($3.8 billion) have been traded on China's Chongqing Petroleum and Gas Exchange since it started operations in April 2018, according to an article on the exchange's website on Tuesday
* In a major auction held on May 31, PetroChina Natural Gas Sales, Chuanyu Branch, sold 41.39 million cubic metres of gas to 129 end-users at a premium of 2.08 yuan per cubic metre over city-gate benchmark prices, the exchange said
* Two other PetroChina subsidiaries that handle gas sales in western and southern China also held auctions on the exchange at end-May and in early June, it said
($1=6.91200 yuan)