PT TBS Energi Utama Tbk (TOBA.JK), formerly PT Toba Bara Sejahtra Tbk, operates as an Indonesia-based integrated energy company focused on sustainability; it engages in coal mining and trading through subsidiaries including PT Adimitra Baratama Nusantara, PT Indomining, and PT Trisensa Mineral Utama across approximately 7,087 hectares in East Kalimantan; palm oil plantations covering 8,633 hectares in Kutai Kartanegara; independent power production via coal-fired plants in Sulawesi and renewable energy developments such as hydropower, wind, solar including a 46 MWp floating solar project in Batam; waste management services encompassing hazardous, general, electronic, medical, industrial, and domestic waste treatment, collection from over 5,000 points processing more than 15,000 tons annually; electric vehicle operations under Electrum featuring over 5,100 electric motorcycles and 300 battery-swapping stations; and consulting management services.
Founded in 2007 and headquartered at Treasury Tower, Level 33, District 8 SCBD, Jakarta, the company serves domestic and international markets primarily in Indonesia and Southeast Asia, including Singapore; it functions as a subsidiary of Highland Strategic Holdings Pte Ltd.
In recent developments, PT TBS Energi Utama Tbk completed the US$405 million acquisition of 100% of Sembcorp Environment Pte Ltd (SembEnviro) in March 2025 via subsidiary SBT Investment 2 Pte Ltd, funded by US$285.91 million external financing and US$12.66 million internal cash, to expand its Southeast Asian waste management platform integrating waste-to-energy and circular economy principles; it divested its remaining coal-fired power plant assets by May 2025, fully exiting the coal-based electricity business; and advanced its Electrum EV ecosystem alongside renewable projects to support its TBS2030 carbon neutrality ambition.