FILE PHOTO: Smoke and steam billows from the coal-fired power plant owned by Indonesia Power, next to an area for Java 9 and 10 Coal-Fired Steam Power Plant Project in Suralaya, Banten province, Indonesia, July 11, 2020. REUTERS/Willy Kurniawan/File Photo JAKARTA : Indonesia on Tuesday launched a revised "taxonomy" or green investment rulebook categorising coal-fired power plants used in nickel facilities as part of the global transition to a green economy, in a move likely to face opposition from green groups.