SUMITOMO MITSUI TRUST BANK

Adress : 32th Floor, Sathorn Square Office Tower, 98 North Sathorn Road, Silom, Bangrak, Bangkok 10500, Thailand
Telephone : 662-230-6100
Facsimile : 662-230-6155～6158

E-mail: G.BKK_Complaintcenter@smtb.jp
Telephone: 662-230-6211