the address of qianhai international liaison services ltd is as follows:
qianhai international liaison services ltd
unit b02, 29/f, tower 1, admiralty centre 
18 harcourt road, admiralty
hong kong
e-mail：karmen.xu@qianhaihk.com
tel: 852 3462 9822
fax: 852 3590-8680
mobile: 852 9624-3580