22. PT. ARGO MAKMUR
23. PT. JAMBI SUKA BATUBARA
24. PT. BANGUN ENERGI INDONESIA
25. PT. TIGA DATA ENERGI
26. PT. CARITAS JAYA PERKASA
27. PT. SUMBER PANCA ENERGI
28. PT. SAROLANGUN BARA PRIMA
29. PT. SALUMA PRIMA COAL
30. PT. DELTA BARA MAKMUR
31. PT. MARGA PERKASA