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An American rancher holding a lump of sub-bituminous coal. Sub-bituminous coal is a lower grade of coal that contains 35–45% carbon.The properties of this type are between those of lignite, the lowest grade of coal, and those of bituminous coal, the second-highest grade of coal. [1]
PT Pendopo Energi Batubara: owns a concession area of 17,840 hectares in South Sumatera. PT Bumi Resources Minerals Tbk: operates other (non-coal) mining assets. Kalimantan Coal Limited. Bumi Investment Pte. Ltd. Herald Resources Pty. Ltd. Bumi Capital Pte. Ltd. Indocoal Resources (Cayman) Ltd. PT Kaltim Prima Cbm . PT Pendopo Energi Nusantara.
The Ombilin Coal Mine (formerly PT Tambang Batubara Ombilin (TBO)) is a coal mine near Sawahlunto, West Sumatra, Indonesia. It is located in a narrow valley along the Bukit Barisan mountains, among the Polan, Pari, and Mato hills, approximately 70 kilometres (43 mi) northeast of Padang .
Tanjung Bara Coal Terminal, abbreviated as TBCT (Indonesian: Terminal batu bara Tanjung Bara), or commonly known as Tanjung Bara, is a coal loading port in Indonesia. [1] Primarily known for its coal loading terminal, it lies on the southeast coast of East Kalimantan , Borneo .
Abdul Somad was born on 18 May 1977 in Silo Lama, a village in Asahan Regency, North Sumatra, as the son of Bakhtiar and Rohana. [9] [10] From the mother's side, he is descended from Sheikh Abdurrahman, nicknamed Tuan Syekh Silau Laut I, a Sufi scholar of the Shattari Order who was born in Rao, Batu Bara.
Berau Coal became part of Vallar plc, British financier Nathaniel Rothschild's £700m cash shell, in July 2010. [7]In 2013, it was variously reported that $173 million had allegedly gone "missing" or that "mysteriously vanished" or that a withdrawal was "unauthorised" from Berau Coal under Rosan Roeslani's leadership.
Batubara Regency is a regency on North Sumatra's eastern shoreline, with the town of Limapuluh as the seat of its administration. It was carved out from the seven ...
Petrogenesis, also known as petrogeny, is a branch of petrology dealing with the origin and formation of rocks. While the word petrogenesis is most commonly used to refer to the processes that form igneous rocks, it can also include metamorphic and sedimentary processes, including diagenesis and metamorphic reactions.