If you have any feedback regarding DPI services, you can contact us at the following correspondence address/telephone number or just simply write the message and simply send out at below.

Address (Hong Kong Office): 25/F, Delta House, 3 On You Street, Shatin, Hong Kong or
Address (China Testing Centre): Dongshan Industrial District, Au Pui Wai, Zhangmutou Town, Dongguan City, Guangdong, China (Postal 523619)

Tel. No.: (852) 3102 3179 (Hong Kong)
Tel. No.: (86) 769-87712112 Ext. 1011 (PRC)

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