Everything can be controlled and planned. Everything belongs to the government on papers, while isn't controlled directly by it. In worst case scenarios government steps into your business and is capable to seize control. Government given loans, so many you couldn't imagine even in usa. Not only cash loans, but property loans too, they can loan you workers and tech as loan too. By pumping loans from one industry to another they basically control their economy. Everything needs a loan, from a car to a house. And it's not even the pyramid scheme, since China currently absorbs all the markets around it
Huge state economic sector or directly controlled state companies. They don't even need money for it, because they can simply borrow anything.
Ideologically China is a complete mess. It's authoritarian-bureaucratic one party state where will of several people is officially stands above constitution. One central сommittee controls highly decentralized bureaucratic system.