Sumtech Technology International Co.,Ltd
Q.House Lumpini Building
27th Fl., No.1 South Satorn Road.,Tungmahamek, Satorn   Bangkok   Thailand   10120  
Tel: (66).( 66 ) 0 26103795 , Mobile: (66) 8 47216969
Fax: ( 66 ) 0 26103895
E-mail: E-mail : somkid.sti@hotmail.com