First Gen Corp.

Utility Companies,

3/F Benpres Bldg., Exchange Rd. cor. Meralco Ave., Pasig City

Tel : (02) 631-8024

Kepco Ilijan Corp.

Utility Companies,

18/F Citibank Tower, 8741 Paseo de Roxas, Salcedo Vill., Mkti. City

Tel : (02) 848-0231

KEPCO Philippines Corp.

Utility Companies,

18/F Citibank Tower, 8741 Paseo de Roxas, Salcedo Vill., Mkti. City

Tel : (02) 848-0237

Linberg Philippines, Inc.

Utility Companies,

20/F Rufino Tower, Ayala Ave., cor. Herrera St., Mkti. City

Tel : (02) 811-0194

Magellan Cogeneration, Inc.

Utility Companies,

Ph. II, Cavite Export Processing Zone, Rosario, Cavite

Tel : (046) 971-0598

Manila Electric Co.

Utility Companies,

Lopez Bldg., Meralco Cpd., Ortigas Ave., Pasig City

Tel : (02) 631-2222

Manila Water Co., Inc.

Utility Companies,

MWSS Bldg., Katipunan Rd., Balara, Q.C.

Tel : (02) 926-7999

Mayer Steel Pipe Corp.

Utility Companies,

333 T. Santiago St., Lingunan, Valenzuela City

Tel : (02) 292-8588

Mirant (Philippines) Corp.

Utility Companies,

Suite 501, CTC Bldg., 2232 Roxas Blvd., Pasay City

Tel : (02) 552-8000

Mirant Diamond Holding Corp.

Utility Companies,

Suite 501, CTC Bldg., 2232 Roxas Blvd., Pasay City

Tel : (02) 552-8000