(EnergyAsia, June 16 2011, Thursday) — South Korea’s JCon Corp, UBEC Inc and Daechang HRSG Corp, engineering subcontractors for refiner and oil trader SK Energy, have secured a contract to carry out regular maintenance at Vietnam’s Dung Quat refinery.The project, the first large-scale overseas maintenance project by a mid-sized Korean firm, could create US$150 million…