Contact us

    Add:Room 627 Building E, Dazhongsi zhongkun International Plaza, No.18 BeisanhuanWest Street,Haidian District, Beijing, China
Postcode:100098
Tel: 8610-82199588-2  62160938(Fax)
Website:http://www.chsi.com.cn  or  http://www.chsi.cn
E-mail:kefu@chsi.com.cn

    Certification Office Address:

    Add: Baiyan Building, NO.238 Beisihuan Zhong Road, Haidian District, Beijing, P.R.China
Postcode:100191
Tel: 8610-82332257 82338426(Fax)
Website:http://www.chsi.com.cn  or  http://www.chsi.cn
E-mail:xuelirenzheng@eyou.com