"No, AWS did not sell its business in China and remains fully committed to ensuring Chinese customers continue to receive AWS’s industry leading cloud services. Chinese law forbids non-Chinese companies from owning or operating certain technology for the provision of cloud services. As a result, in order to comply with Chinese law, AWS sold certain physical infrastructure assets to Sinnet, its longtime Chinese partner and AWS seller-of-record for its AWS China (Beijing) Region. AWS continues to own the intellectual property for AWS Services worldwide. We’re excited about the significant business we have in China and its growth potential over the next number of years."
The longer the press release and/or the more legalese, the worse the story or in this case, withdrawal from a previous market. Positive, constructive press releases are very short by comparison.
https://techcrunch.com/2017/11/13/aws-exits-china/