Shanghai headquarters

Address：Shanghai City, Pudong New Area Nanhui Industrial Park Road No. 55

Zip code：201300

TEL：86-21-58182600 

Fax：86-21-58182400

Mail：sales@esimtek.com

Hongkong branch

Address：Hongkong Kowloon Bay Changsha Kingsland Street No. 93 Arts crafts emporium 9 floor, room 16B lung

TEL：852-23698617

Fax：852-23698619