Contact persons (Beijing)：Cai Hongtao
Telephone：（86）10-84384778
Mobile phone：(86) 13911678560
Email：caiht@casc.com.cn
Contact persons (Macau)：Zhou Jinyang
Telephone：（853）83910955
Mobile phone：（853）63762122、（86）15363762122
Fax：（853）28715986
Email：zhoujinyang@namkwong.com.mo
Contact person: Gan geling
Telephone：（853）83910953
Mobile phone：（853）62197820、（86）15344897820
Fax：（853）28716550
Email：ganailing@namkwong.com.mo