PTBA seeks to maintain stripping ratio below 4.8 in H2 2019 Monday, September 16 2019 - 09:09PM WIB Arviyan Arifin-Petromindo|Lucky By Tri Subhki R IDX-listed state-owned coal mining company PT Bukit Asam Tbk PTBA aims to ... Log in to read the story Login Related News & Products Adaro's coal barging contract with MBSS set to conclude in September GEMS secures coal sales deals with GMR Holding Indonesia Coal Industry Map 2023 Mifa Bersaudara records lower coal output in 1Q Adaro Minerals plans higher capex for 2024 Indonesian Coal Report Issue 51 Indonesian Nickel Book 2022 Indonesian Nickel Report Issue 48