(EnergyAsia, August 23) — Texas, US-based SulphCo(R) Inc said it has signed a Letter of Intent with Korea’s Hyundai Oilbank Co Ltd and SulphCo KorAsia Inc on commercialising its oil refining technology. Hyundai Oil Bank, a leading Korean refiner, and SulphCo have agreed to work together with the aim of entering into a commercial agreement…