China plans to restrict exports of a critical metal. But the market isn’t that worried

Key Points

China will start limiting exports of critical metal tungsten this weekend, just as alternatives to Chinese suppliers of the metal are reopening.
Tungsten is an extremely hard metal used in weapons and semiconductors.
The U.S. has not commercially mined tungsten since 2015, according to official records. But this year, one of the world’s largest mines for the metal is moving close to resuming production in South Korea.

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