Thai Industrial Gases Public Co Ltd
927 On-nuch Road
Suang-Luang
10250 Bangkok
Tel.: Int.+66 2.331 0175
Fax: Int.+66-2.331 6286
E-mail: thidarat_luangon@tig.boc.com
Sing Sanguan & Sons Co., Ltd
40/10 Soi 12, Narathivatrachanakarin Road
Sathorn
Bangkok 10120
Tel.: Int.+66-2-888 8944
Fax: Int.+66-2-888 8915
E-mail: surar@inet.co.th