PT Toba Bara Sejahtra Tbk is an Indonesia-based Company engaged in coal mining and palm oil plantation. The Companyâ€™s business operations are divided into two segments: coal mining and plantation. The Company and its subsidiaries operate coal mining and palm oil plantation in Kalimantan, Indonesia. Though PT Adimitra Baratama Nusantara and PT Trisensa Mineral Utama, the Company operates coal mining with production operation mining permit in mining area in Sanga-sanga, Loa Janan, and Muara Jawa sub-districts, Kutai Kartanegara regency, East Kalimantan province. For plantation, the Company, thorough PT Perkebunan Kaltim Utama I, operates palm oil plantation and palm oil mill in East Kalimantan.