Dipo Business Center 7th floor, Suite 7E, Jl. Gatot Subroto Kav. 50-52, Jakarta 10260

Phone: 62-21-3005-1341
Fax: -
Email: corporate.secretary@drilchem.com

Deutsche Bank Building #15-04 Jl. Imam Bonjol No.80 Jakarta 10310

Phone: 62-21-390-1138
Fax: 62-21-390-1140
Email: —

Jalan Raya Perning No.39 Kecamatan Jetis, Kabupaten Mojokerto Jawa Timur 61352

Phone: 62-321-367-1741
Fax: 62-321-367-0749
Email: corseciop@ioperkasa.com

Gedung Equity Tower Lantai 14 Unit A, Scbd Lot 9 Jl. Jend. Sudirman Kav 52-53, Kebayoran Baru Jakarta Selatan 12190

Phone: 62-21-522-6528
Fax: 62-21-522-6517
Email: —

Jl. Otista Raya No. 33, Jakarta Timur, Indonesia

Phone: 62-21-851-4909
Fax: 62-21-851-4910
Email: coorporatesecretary@oscarliving.com