(EnergyAsia, May 2, Wednesday) — Gas-rich Brunei is bidding to widen its industrial base with plans to build the country’s first petrochemical plant, a 850,000 metric tons methanol production facility.   Construction of the US$400 million plant, a joint venture between state-owned PB Petrochemical Co, Japan’s Mitsubishi Gas Chemical Co and Itochu Corp, is due…