I probably ought to have mentioned this in my original comment - China allowed companies to set up certain kinds of Chinese operations, such as manufacturing, b

I probably ought to have mentioned this in my original comment - China allowed companies to set up certain kinds of Chinese operations, such as manufacturing, by partnering with a local company and setting up a joint operation but they're a lot more restrictive about online information services. Operating those really is limited to wholely Chinese-owned and Chinese-operated companies as I understand it, joint partnerships with foreign companies are not permitted to run them. This includes things like the Chinese versions of AWS and iCloud, which are entirely operated by existing Chinese companies.