Here are some examples of how Chinese companies are applying machine learning:
Chinese company Yongqianbao is using artificial intelligence to screen data to determine creditworthiness when issuing loans. No credit agents necessary! Watch this CNBC clip about them
ByteDance (a private company, last valued at $78B) uses machine learning to source and push content to users. Their main product is Toutiao. 90% of their users are under 30 years old and on average spend 76 minutes on the site every day, resulting in 1.3 billion articles read every day. Another of their products is TikTok. It gained popularity and became the most downloaded app in the U.S. in October 2018. TikTok employs artificial intelligence to analyze users interests and preferences through their interactions with the content, and display a personalized content feed to each user. I tried it and had to delete it, because it was too addictive.
(I learned this from AI Superpowers by Kai-Fu Lee.)