Just in case you believe China is ‘communist’, let President Xi and co’s online mouthpiece, Global Times, put you straight.
Here’s their recent editorial, no doubt a response to US government attempts to ‘decouple’ US capital from China: ‘Private enterprises and foreign companies in China can be at ease, explore and develop the Chinese market without any concerns. And the rewards will be generous.’
What are these generous rewards? The profit extracted from the unpaid labour of Chinese workers, of course. There is no other source.
More info on how the profit system works here.