(EnergyAsia, October 12 2012, Friday) — Two Malaysian firms and one from Indonesia have signed a memorandum of understanding to jointly supply coal to TNB Fuel Services (TNBF) Sdn Bhd, a subsidiary of Malaysian power producer Tenaga Nasional Berhad (TNB). The Malaysian firms, Aditia1Energy Sdn Bhd and Southdale Resources Sdn Bhd, will team up with…