Shanghai Haiyi Scientific & Trading Co., Ltd.
Add: West Block, 4 Floor, Zhongqi Building, No.2000, North Zhongshan Road, Shanghai, P.R.China
Tel: +86-21-61813777
Fax: +86-21-61179377
PC: 200063
E-mail: hy@haiyi21cn.com

Beijing branch office
Add: Room 3006, Shangdu International Center, No.8 Dongdaqiao Road, Chaoyang District, Beijing, P.R.China
Tel: +86-10-58702602
Fax: +86-10-58702271
PC: 100020
E-mail: hw@haiyi21cn.com

Guangzhou branch Office
Add: Room.2201,Block A,No.57,Fanhua Road,Panyu District, Guangzhou,P.R.C,511400
Tel: +86-20-84701335，84701336
Fax: +86-20-84701337
PC: 511400
E-mail: hyg@haiyi21cn.com

Changzhou Rep.Office
Add: East Xilin Middle School, Hualin Road,Changzhou,Jiangsu Prv.P.R.C,213024
Tel: +86-519-83276567
Fax:+86-519-83276583
PC: 213024
E-mail: hyc@haiyi21cn.com

Chengdu Rep.Office
Add: Room.907, Block 2,No.16,Xi Fu North Street,Qingyang District, Chengdu,P.R.C,610031
Tel: +86-28-86282679
Fax: +86-28-86282679
PC: 610031

Qingdao Rep.Office
Add: Room 3430,Business Building B, Wanda Plaza, No.33,Lianyungang Road,Shibei District，Qingdao,P.R.C,266034
Tel: +86-532-80916583
Fax:+86-532-80916580
PC: 266034

Wuhan Rep.office:
Add: Room 1805, Block 1, Xinduhui, No 727, Luoyu Road, East Lake Development Zone, Wuhan, P.R.C
Tel: +86-27-87676208
Fax:+86-27-87676238
PC：430072