2. PT. SURYA SATRIA NUSANTARA
3. PT. SUMATRA SEMESTA ABADI
4. PT. ASIA MULTI INVESTAMA/ TEBO PRIMA
5. PT. SAROLANGUN PRIMA COAL
6. PT. ARUNIKA BARA ENERGI
7. PT. BATU HITAM SUKSES
8. PT. DAYA BAMBU SEJAHTERA
9. PT. ALAM SEMESTA SUKSES BATUBARA
10. PT. JAMBI PRIMA COAL
11. PT. BUMI BERDIKARI SENTOSA