Flat A, 18/F., Genesis, 33-35 Wong Chuk Hang Road, Wong Chuk Hang, Hong Kong
Telephone: +852 3582-3088
Email: enquiry@ocg.com.hk
24/F., TST Tower, 21 Viphavadi-Rangsit Road, Jomphol, Jatujak, Bangkok, 10900 Thailand
Telephone: +66 2-273-8320
Email: enquiry@ocgt.co.th