If China really is a socialist country or one pushing towards communism, why do you think they are waiting to push more directly in that direction? What is to be strategically gained from capitalizing your economy, essentially going backwards for 50 years instead of continuing to push for communism?
Learn the fucking basics of the Chinese economy before you talk shit. They have a market sector where capitalists can run profit-making businesses, but they exist on a basis public ownership, are subject to state control, and they don't dominate the economy. The commanding heights of the economy are controlled by the state, which makes five year plans.