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Global expansion in AI chips, advanced logic processes, and multilayer 3D NAND flash memory is driving demand for tungsten hexafluoride (WF6), a critical electronic specialty gas used in semiconductor manufacturing. Limited short-term supply additions and low industry inventories are widening the supply-demand gap, triggering a rapid price increase.

The semiconductor supply chain is facing another raw material shock — this time from tungsten hexafluoride, or WF6, a specialty gas used in chip manufacturing. Planned production adjustments or exits by some Japanese suppliers in the second half of 2026 have intensified concerns over tighter global supply, sending prices sharply higher and raising the risk of disruption into 2027.