China's dominance in the hi-tech industry can be attributed to several factors, including extensive government support, a large labor force, significant investment in research and development, and a well-established supply chain infrastructure. One of the key resources that support this dominance is rare earth elements. These elements are essential for the manufacture of various high-tech products, including smartphones, electric vehicles, and renewable energy technologies. China is the largest producer and supplier of rare earth elements globally, giving it a crucial advantage in the hi-tech sector.
The correct answer is: rare earth elements.