mineral · input
Tungsten Metal
Feedstock for WF6 (tungsten hexafluoride) production — the precursor gas for semiconductor CVD tungsten contact plug deposition. China controls ~80% of global tungsten mine supply and imposed export restrictions in late 2024. No viable substitute for tungsten CVD in advanced semiconductor nodes below 7nm.
3
Source countries
0
Companies
1
Goods affected
0
Claims on record
What depends on it
Goods that need this input
1 essential American goods rely on tungsten metal somewhere upstream in their supply chain.