13/08/2026
Where carbide raw material comes from, and what changes in 2027.
Roughly 82% of the world’s tungsten comes from China. The U.S. hasn’t commercially mined tungsten since 2015. About 60% of U.S. tungsten consumption goes into cemented carbide — end mills, drills, inserts.
On January 1, 2027, a federal defense-procurement rule tightens tungsten sourcing, tracing covered material back to its original mine of origin.
Swipe for the numbers, what the rule covers, and where we stand.
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