GBU conducts trial production of manganese ore Tuesday, August 16 2022 - 02:31PM WIB By Lambok Dominikus PT Gemala Borneo Utama GBU which owns manganese and gold concessions on Romang ... Log in to read the story Login Related News & Products PTAR: Expression of interest for diamond drilling services Chengtok mulls renewables for its lithium plant Govt to launch SIMBARA to enhance oversight in nickel sector Indonesian Nickel Book 2022 Harum’s nickel unit secures $620m loan Compilation of Nickel Smelters in Indonesia LAW NO. 3 OF 2020 REGARDING AMENDMENT OF LAW NO. 4 OF 2009 REGARDING MINERAL AND COAL MINING The Financial Services Authority (OJK) Regulation regarding carbon trading through carbon exchange