March 5, Saturday, is Open Data Day around the world. There will be a hackathon from 10am until 7pm at Odd-e Hong Kong, 35-36 Connaught Road West, Hong Kong. Take a look at the Facebook page for the details. A maximum of 30 people can participate. As of the first of March, 8 people have registered. Open Data Day Hong Kong 2016
The Hong Kong government has a website with datasets available to the public.
“You can download, distribute, reproduce, re-use or hyperlink to DATA.GOV.HK datasets for commercial or non-commercial purposes free-of-charge.”