GUOCO INDUSTRIAL, INC.

Industrial Services and Equipment

Km. 54, Brgy. Makiling, Calamba, 4027 Laguna Laguna Region 4

Tel : (049) 545-1868 / 545-2449 / 845-4538

Fax : (049) 545-2413 / 2450

KER & CO., LTD.

Industrial Services and Equipment

Ker Building, 1802 San Mercelino cor. J. Nakpil Sts., Malate, Manila Manila Metro Manila

Tel : (02) 525-5590: 522-4646: 521-5396: 521-8019: 525-4842: 536-8422 to 24

Fax : (02) 523-5035: 525-5590