Cutting edge US tech companies keep giving away their IP by setting up their factories in China. Many of their components are sourced from Chinese companies. Within a few years, suddenly Chinese companies make massive tech leaps and become rivals.
Tesla opened its Shanghai Gigafactory in December 2019. China's EV market took off in 2021.
The same thing happened with smartphones:
>Apple built China's smartphone market dominance by creating an intense "supply chain boot camp," transferring advanced manufacturing skills, and fostering a robust ecosystem of Chinese suppliers (like Foxconn, BYD, Luxshare) through massive investment, strict quality demands, and technology transfer, enabling these local companies to rapidly become foundational for domestic giants like Huawei, Xiaomi, Oppo, and Vivo, transforming China into a global tech manufacturing powerhouse
https://www.youtube.com/watch?v=NAj9zB4vaZc