There are certified instructors/schools in Hong Kong. Please ask your instructor or school for their permit granted by the DGCA.
The Air Transport (Licensing of Air Services) Regulations (Cap. 448A of the Laws of Hong Kong) stipulate, inter alia, that a person must not use any aircraft (which includes paragliders) for the provision in Hong Kong of any air service except under, and in accordance with the conditions of, a permit granted by the Director-General of Civil Aviation (DGCA). In other words, any offer of air service performed by paragliders for hire or reward in Hong Kong without a permit granted by the DGCA would be in contravention of the relevant provision in Cap. 448A.