Since the 1990s, the global annual consumption of rare earth has increased from 33000 tons to more than 10 tons. Rare earth is not only an important raw material for traditional industries such as steel, nonferrous metals and oil, but also plays an irreplaceable role in the fields of photoelectric information, catalytic equivalent technology and new materials. In today's world, a new use of rare earth is found almost every three to five years, One of every four new technologies is related to rare earth. China is the largest resource country of rare earth, so it is urgent to protect rare earth resources.
paragraph mainly explains that:
The development and utilization of rare earth restricts the application of high and new technology