Coal - ValeHeadquartered in Brazil and present in about 30 countries, we employ approximately 110,000 people between direct employees and permanent contractors.direct miner batubara,Indonesian Coal Miners in Focus: Tambang Batubara Bukit Asam20161215 . Listed Indonesian coal miner Tambang Batubara Bukit Asam (PTBA) . The price at which Tambang Batubara Bukit Asam (Bukit Asam) sells its . Foreign Direct Investment Growth in Indonesia Slowed in Q4-2016 2017 .
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