Foreign investments, manufacturing capacity and exports, and IP theft is what the Chinese economy has bred over the last 30 years. They used their large population to prop up their economy and it doesn't actually lead to sustainable growth -- expect an eventual crash. Their GDP is not sustainable and the one party state hasn't led to much new innovation over the last few decades.

And keep in mind the real estate sector in China is abysmal as of late: https://www.cnn.com/2023/09/19/economy/china-sunac-ny-bankruptcy-protection-intl-hnk/index.html