BINAMITRA SUMBERARTHA, PT DKI Jakarta Coal, Anwar Hidayat, Heru Wiyono binamitra@binamitra.co.id (62-21) 5211381, 5211436 (62-21) 5211603, 5211760 World Trade Center 13th floor , Jl. Jend. Sudirman Kav. 29-31, Jakarta Selatan