North China Office
Add.: Building C, CEC Network Security and Information Technology Base, South Region of Future Science Park, Beiqijia County, Changping District, Beijing, 102209, P.R.China
Tel.: +86 (010) 52171568
Fax: +86 (010)  52171569
E-mail: sales@hed.com.cn

South China Office
Add.: 6/F, Block A, No.1867 Zhongke Road, Pudong New Area, Shanghai, 201210, P.R.China
Tel.: +86 (021) 38804880
Fax: +86 (021) 38804884
E-mail: sales@hed.com.cn

Shenzhen Office
Add.: 15th Floor, SED S&T Building, No.1 S&T Road S&T Park,
Nanshan District, Shenzhen, Guangdong 518057, P.R.China
Tel.: +86(0755) 23618369
Fax: +86(0755) 23618369
E-mail: sales@hed.com.cn