Head Office / Factory:
Address: No. 12, South Yunsan Road, Luogang District, Guangzhou (alongside the master bus station of southern science city)
Tel.: 020-89170888 Fax: 020-89170777 Postcode: 510663
Beijing Office:
Address: Room 402, Building 1, Information Science Technology Building of Tsinghua University, Beijing.
Tel.: 010-62962268 Fax: 010-62983389 Postcode: 100084
Northeast : TEL：0431-86883522 FAX：0431-86883622 E-mail：dongbei@yiwenkeji.com
North China： TEL：010-62962268 FAX：010-62983389 E-mail：huabei@yiwenkeji.com
Eastern China：TEL：0571-81604301/81604302 FAX：0571-81604303 E-mail：huadong@yiwenkeji.com
Central China：TEL：027-87168330 FAX：027-87168339 E-mail：huazhong@yiwenkeji.com
South China： TEL：020-89170888 FAX：020-89170777 E-mail：huanan@yiwenkeji.com
southwest： TEL：028-65978737 FAX：028-65978737 E-mail：xinan@yiwenkeji.com
Northwest： TEL：029-88247636 FAX：029-88247636 E-mail：xibei@yiwenkeji.com
Henan Province：TEL：0371-63709720 FAX：0371-63709720 E-mail：wanbang@yiwenkeji.com
