CHA-HongyeTEL：0755-23716570
FAX：0755-23716572
ADD：Room 1327-1333,NO.782,XixiangRoad,Bao’An District,Shenzhen
CHA ElectronicsTEL：0512-68322390
FAX：0512-68322391
ADD：NO.26, Wuzhong District, Suzhou,China
BEIJING
Telephone: +86-133-5800-8830
Address: room 461, building ten, 6 street, street, Haidian District, Beijing
SHANGHAI
Telephone: +86-177-6803 1130
Address: room 1204 No. 1 Building No.111Luxiang Road Baoshan District,Shanghai
0512-6832 2390 
East China
king.jin