Headquarters:

• Add: Culture Building, 59 Zhongguancun Street, Haidian District, Beijing, 100872, China
• Tel:+8610 62515566
• Fax:+8610 82500072
• Customer Service Hotline：400-000-6000
• Email: dbd@www.ahtc711.com(Domestic Business Department)
             ibd@www.ahtc711.com(International Business Department)
             media@www.ahtc711.com(Media)