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China’s Rare-Earth Curbs Rattle Global Chip Supply Chain as Donald Trump’s Tariff War Adds Pressure

China’s new export rules require foreign firms to get approval for re-exports of rare earth materials, risking supply delays and price rises critical to semiconductor production.

  • On Thursday, China's Ministry of Commerce imposed a raft of export controls on rare earth materials used in chipmaking, requiring case-by-case approval for advanced semiconductors.
  • Seen as a bargaining tool, analysts say the measures bolster Beijing's leverage ahead of negotiations with the US and extend China's reach into the semiconductor industry.
  • Chipmakers and equipment suppliers are preparing for higher input costs and supply disruptions as ASML Holding NV faces weekslong shipment delays and companies rush to identify rare-earth-dependent magnets.
  • On Oct 10, US President Donald Trump announced a 100 per cent tariff and export controls on `any and all critical software`, while the White House said agencies are assessing impacts and Republicans called it `an economic declaration of war against the US`.
  • Analysts warn the curbs could complicate production of AI and memory chips worldwide, noting this is the first rare-earth rule to mention semiconductors and follows April controls on seven critical minerals.
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South China Morning Post broke the news in Hong Kong on Friday, October 10, 2025.
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