Head office:
220 Soi Bangkradee 25, Samaedam, Bangkhunthian,Bangkok, 10150 Thailand
Tel: +66 9 2812 5709
E-mail: sumit@uttama.org
Branch office:
101 Moo 6, Nonglu, Sangkhlaburi, Kanchanaburi, 71240 Thailand
Tel: +66 8 4536 4469
E-mail: rainbowschool.33@gmail.com