(EnergyAsia, October 11 2011, Tuesday) — The proposed A$477-million takeover of Australia-listed Hunnu Coal by Thailand’s largest coal miner, Banpu Public Company has been approved by the regulators of both countries. (US$1=A$1.03).Australia’s Foreign Investment Review Board (FIRB) and the Bank of Thailand separately gave the greenlight for Banpu to acquire the remaining 88% of the…