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P.O. Box 4711
Sarasota, FL 34230
8:00 a.m. to 8:00 p.m. EST
Call or text (+1) 855-GRADE10 (855-472-3310)
Message and data rates may apply for text messages.
China - Hong Kong SAR
NGC Hong Kong Ltd.
Suite 1208-10, 12/F, Tower 1,
The Gateway, Harbour City,
25 Canton Road, Tsim Sha Tsui,
Kowloon, Hong Kong, China
Office visits by appointment only.
Hours (Monday to Friday): 10:00am to 6:00pm