Reswara
December 2007, PT Sumberdaya Sewatama and PT Sanggar Sarana Baja take over PT Tunas Inti Abadi, a coal mining concession in South Kalimantan. 2010. November 2010, PT Reswara Minergi Hartama established, positioned as a subholding groups of ABM Investama in the field of integrated mining company.