(EnergyAsia, November 10 2010, Wednesday) — Singapore Exchange (SGX) said it has successfully launched clearing of its over-the-counter (OTC) Indonesian sub-bituminous coal swap contract on November 3. Brokered by Ginga Petroleum, the first trade worth US$1.2 million was concluded between Mercuria Energy Trading and RWE Supply & Trading. Each contract offers the equivalent exposure of…