Hong Kong is an attractive city for many refugees as it is a visa-free entry country and all you need is a plane ticket to Hong Kong. But, Hong Kong has not signed the 1951 refugees treaty, and therefore it is not recognised in Hong Kong. Hong Kong is a very expensive country to live in. Refugees are not allowed to work in Hong Kong, and have to live off government payments and charities. The government allowances $1,500 per adult per month and $750 per child per month. Refugees also receive support for rent deposit (up to $3,000), agent fee (up to $750), utilities (up to $300 per month), food ($1,200 per month), transportation (ranging from $200 to $420 per month), other basic necessities (offered in-kind), and counselling services. They have no rights and often getting around has massive barriers for them, including language. 

Compared to the rest of the world, Hong Kong takes in a lot less refugees than any other developed country. The global average is to accept 43% of the refugees that arrive in a country, with Europe accepting as many as 60%. Hong Kong's acceptance rate is about 0.6%, with around only 120 claims accepted between later 2009 and March 2018.

Sources: https://www.legco.gov.hk/yr16-17/english/hc/sub_com/hs54/papers/hs5420190115cb2-581-1-e.pdf, Branches of Hope