Chinese media (and social media particularly) does regularly cover stories about Chinese people outside of China involved in situations such as these, whether it's a high-profile business figure [2], or ordinary Chinese people involved in non-ordinary conflicts. Including the narrative that Chinese people don't get justice or support from local police when they are victims to criminal activity, that's regularly reported in Chinese media.
UK media does the same thing, any disaster always has a mention of how many British citizens are involved, sometimes who they are. And a regular diet of outrage of British tourists coming face-to-face with the legal consequences of their behaviour across the world.
Brexit revelations shows me that China trades using WTO rules with Europe. There does seem to be movement on that front too. [3], [4]
Though, with trade arrangement with WTO rule, it's worth asking why US aren't resolving their dispute within the WTO. We shouldn't glorify bullies, even if they are bullying other bullies.
[1] https://www.bbc.co.uk/news/business-43926092 [2] https://www.reuters.com/article/us-hna-chairman/chinas-hna-c... [3] https://uk.reuters.com/article/uk-china-eu/eu-pushes-china-o... [4] https://www.politico.eu/article/donald-trump-china-eu-trade-...