China has leverage it can use by limiting access to its rare earth supplies, but it does not want to sacrifice its reputation as a reliable supplier.

How did the U.S. become so dependent on China for a resource that is essential for cars, fighter jets and more?

Since early April, China has stopped almost all shipments of critical minerals that are needed for cars, robots, wind turbines, jet fighters and other technologies.

China has leverage it can use by limiting access to its rare earth supplies, but it does not want to sacrifice its reputation as a reliable supplier.

Beijing has gained time to build up its own strengths by drawing out negotiations with the United States, using its chokehold over critical minerals.