The CDETO is responsible for promoting economic and trade ties and cooperation, as well as exchanges on other fronts, between the HKSAR and the four provinces of Sichuan, Qinghai, Guizhou, Shaanxi, Tibet Autonomous Region and the Municipality of Chongqing. The CDETO performs the following functions :

Economic and trade liaison

Enhancing mutual understanding

Enhancing cooperation

Assisting in taking forward initiatives

Tendering advice

Supporting Hong Kong enterprises

Attracting investment

Promoting Hong Kong

Assisting Hong Kong residents

HKSAR passport replacement service