Set up in July 2002, GDETO is responsible for handling economic and trade matters between HKSAR and the four provinces/region of Guangdong, Fujian, Guangxi and Hainan. The Shenzhen Liaison Unit, Fujian Liaison Unit and Guangxi Liaison Unit under the GDETO were subsequently set up in December 2010, February 2012 and April 2017 respectively. GDETO serves to promote Hong Kong's economic and trade interests and seeks to attract direct investments into Hong Kong.
The Office performs the following functions -