In order to do business in China, non-Chinese companies must partner with a Chinese company. The International company shares their IP with their Chinese counterpart, and the Chinese counterpart in turn shares the IP with the their partner, the Chinese government. The Chinese government takes the IP and shuffles the IP to the company or companies best suited to exploit the IP. This has been taking place as long as China has been open to International business.
International companies in a rush to get access to the largest single market in the world have freely given away their IP, because they didn't think the Chinese could ever catch up. Companies are now moving partnerships away from China, and it's forcing the Chinese to steal the IP in order to keep their edge.
I try very, very, hard to avoid buying products made in China. I"m OK with every other country in the world, except China.