How much tax should be levied on Japanese patent income?

The factory is in China, and of course the tax is collected in China. It's just that Japan took a bigger piece. Because the shareholders or ultimate controllers of many varieties such as ksf and ty are all Japanese. People are making a profit. For example, a piece of instant noodles: 30% tax is levied in China. In addition 10% is the cost. The remaining 60% is theirs.