In 2012, the Company conducted an initial public offering, changing the name to PT Toba Bara Sejahtra Tbk. The Company offered 210,681,000 shares, worth Rp 1,900 per share. On 6 July 2012, The Company was listed on Indonesian Stock Exchange as an public company with total shares of 2,012,491,000 shares with ticker code TOBA. Its largest shareholder is currently Highland Strategic Holdings Pte. Ltd (HSH), an investment company with its investment focus, among others, in the energy sector.
The Company is one of the major thermal coal producers in Indonesia with a total concession area of 7,087 hectares consisting of 3 mines located in Sangasanga, Kutai Kartanegara, East Kalimantan. Total reserve and total resource are estimated at 147 million tons and 236 million tons respectively as per the JORC reports of 2011 and 2012. The 3 mining concessions are operated by 3 subsidiaries of PT Adimitra Baratama Nusantara (ABN), PT Indomining (IM) and PT Trisensa Mineral Utama (TMU). IM was developed as a greenfield asset in 2007, followed by ABN in 2008, and TMU was started to be developed in 2011. The 3 mining concessions are located adjacent to each other and have adequate logistics access. Therefore, the Company utilizes these advantages to integrate logistics systems and together with subsidiaries use the infrastructure collectively to optimize cost efficiency.
In 2013, the Company added a line of business in palm oil processing by acquiring PT Perkebunan Kaltim Utama I (PKU) in the framework of completion of overlapping land. In order to maximize the oil palm plantation, the Company built a palm oil mill with a capacity of 30 tons per hour to process plantation products. The palm oil mill has been in operation since mid-2016.
From year to year, the Company has been able to create growth in terms of resources, business scale and operational systems. This growth is evident from the increase and distribution of export quantities to several countries in Asia other than China, such as South Korea, Taiwan, Malaysia, India, Japan, and the ASEAN region. In terms of customer segment, the Company balances the composition between traders and end-users in which the composition of end-users increases, so the Company does not depend on any of the customer segments. Proactively, the Company diversifies its sales aspect to potential countries to strengthen its financial and operational growth rate.
In 2016, the Company started to diversify its business into the power sector through the establishment of subsidiary PT Gorontalo Listrik Perdana (GLP) to develop a 2 x 50 megawatt (MW) coal-fired power plant (CFPP) in Gorontalo province, Sulawesi. In early 2017, a new subsidiary, PT Minahasa Cahaya Lestari (MCL) was established to develop another 2 x 50 MW CFPP in North Sulawesi province, Sulawesi.