What's your source on that? Apple, Microsoft, Tesla and Amazon all operate in China and I don't believe they had to give up 50% of their local subsidiary. Google withdrew from China because it didn't want to comply with local laws (e.g. censorship).
They changed it last year. Prior to that you generally could only have a 50% stake manufacturing companies (obviously doesn’t apply to Apple cause they never did any).
> .. (ii) news agencies, (iii) editing, publishing and production of books, newspapers, periodicals, audio-visual products and electronic publications, (iv) all levels of broadcasting stations, television stations, radio and television channel and frequency, radio and television transmission networks and the engagement in the video on demand business of radio and TV, (v) radio and television program production and operation as well as (vi) film production companies, distribution companies, cinema companies and the introduction of films are still prohibited.
So good-luck to any Australians and Brits who want to operate Fox news style networks in China.
There are other telecommunications related areas which are restricted and not prohibited.
Not sure where would TikTok fall into exactly but it’s probably bot manufacturing.
