The Office of Trade Single Window Operation under the Customs and Excise Department, provides support to TSW users and Participating Government Agencies.

The Office of Trade Single Window Operation provides the following public services –

• Registration
• User training and publicity
• Help-desk, hotline and other support services
• Operation and maintenance of the TSW system

The Office of Trade Single Window Operation

• Address: 3/F, Customs Headquarters Building, 222 Java Road, North Point, Hong Kong
• Operation Hours: 8:45 am – 5:30 pm, Monday to Friday (except public holidays)
• Enquiry Hotline: 2117 3348
• Email Address: enquiry@tradesinglewindow.hk