Note that, besides dissidents and the obvious human rights risks, major international firms have often used Hong Kong as a regional headquarters for their Southeast Asian business (or just as a headquarters generally). This is also threatened, as these businesses thrive in an environment defined by capitalism, property rights, and the rule of law — rather than government-run enterprise, property seizure, and the whims of China's rulers.
https://www.nytimes.com/2019/06/12/business/hong-kong-china-...
https://www.cnn.com/2019/06/11/asia/hong-kong-extradition-ch...
https://www.afr.com/news/world/asia/labor-business-alarmed-b...