Contact Us Home Contact Us Ichitan Group Public Company Limited (Head Office) No. 8 T-One Building, 42nd – 44th Floor, Soi Sukhumvit 40, Phra Khanong Sub-District, Khlong Toei District, Bangkok, 10110 Telephone: 02-023-1111 Fax: 02-020-3999 Get Direction Ichitan Green Factory 111/1 Moo 4, Rojana Industrial Park 3, Uthai, Uthai, Phra Nakhon Si Ayutthaya, 13210, Thailand Telephone: 035-276-111 ext. 705 or 084-438-7693 Get Direction