If you use a non-traditional definition of Capitalism, I suppose, and you are referring to quantity, not power or percentage of the economy. They are more accurately described as a Socialist Market Economy, relying on state owned heavy industry (steel, banking, energy, transportation) and heavily controlled and planned private owned light industry (many consumer goods, clothing, gaming, etc). That's a major oversimplification, of course, but they run on Marxist-Leninist conceptions of economics.