The Social Welfare Department has established a "designated team for special school leaver" in each of the 21 District Support Centers for Persons with Disabilities in Hong Kong to provide support to graduates who are about to leave special schools.

You can use the search function on this page, select "Moderately mentally handicapped persons" and select "Community Support" to find relevant service " Special School and the District Support Centre for Persons with Disabilities attaching Designated Team for Special School Leaver".

https://carers.hk/en-us/articles/service-and-resource?action=search&aduience=48&type=333&type5=1110