[3] The remainder of the disestablished Industry Department was reorganised into the Innovation and Technology Commission.

The Department promotes trade through intra- and international agreements, such as the Closer Economic Partnership Arrangement with Mainland China.

To fulfil its duties, the Department estimated expenditure of HK$802,446,000 in the 2017–18 financial year.

The Department is then split into divisions, each run by an Assistant Director-General: There is also an Administration Branch and an Information and Public Relations Section.

The Department additionally comprises: Its headquarters are the Trade and Industry Tower in San Po Kong.