PT Berau Coal Energy (BRAU) plans to invest between $100 million and $300 million to increase production capacity and build a power plant. “The money will be used to build a conveyor belt and power plant,” said the company’s president director, Eko Santoso Budianto, after the closing of the Derawan Festival in Tanjung Redeb, East Kalimantan, according to the Antara news agency.