Highlights

• China's Ministry of Commerce expanded export control obligations on five heavy rare earth elements and related technologies.
• Licenses are required for products with over 0.1% Chinese-origin rare earth content.
• The new regulations create potential discretionary choke points in semiconductor and technology supply chains.
• Affects include equipment, materials, and component manufacturing.
• While Taiwan claims minimal direct impact, broader implications include:
  • Potential production bottlenecks
  • Compliance costs
  • Geopolitical technological leverage

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On October 9, 2025, China’s Ministry of Commerce (MOFCOM) published Decision No. 61, expanding export control obligations to include five additional heavy rare earth elements (holmium, erbium, thulium, europium, ytterbium) and dozens of rare-earth processing technologies, magnet manufacturing equipment, and recycling systems. Licenses are now required for exporting any product containing more than 0.1% Chinese-origin rare earth content, particularly when connected to semiconductors, AI, or defense end uses. MOFCOM has defended these as legal, lawful, and in line with global dual-use norms. The U.S. would consider an alternative understanding of the situation.

The new rules mirror elements of U.S. export control logic (e.g. the foreign direct product rule) by claiming discretionary jurisdiction over foreign products that incorporate Chinese materials or technology.

China emphasizes that these are licensing controls, not blanket bans, and says it will use facilitation measures for compliant civil trade.  From a U.S. perspective, the move is viewed very differently.

Taiwan’s Official Shield: “No Impact on Chips”

Taiwan’s Ministry of Economic Affairs responded as cited in Reuters (opens in a new tab) on October 12, stating the new restricted elements “differ from those used in Taiwan’s semiconductor processes”, and thus “no significant impact on chip manufacturing is expected at this time.”

Officials also noted that Taiwan largely sources rare-earth derivatives from Europe, the U.S., and Japan (rather than raw Chinese ores), suggesting this supply mix buffers direct exposure.

However, as cited in Reuters, (opens in a new tab) the Ministry of Economic Affairs (MOEA) did concede that global chain disruption (e.g., in EVs, drones) could ripple into Taiwan indirectly — and pledged to monitor “indirect effects” on materials and cost pressures.

Fault Lines Beneath the Calm

While Taiwan’s official posture is defensible in the narrow frame of direct fabrication materials, the risk emerges in indirect dependencies and tool chains:

Risk	Summary	Implications
Equipment & Toolmakers Exposure	Chip fabrication tools (like ASML’s EUV scanners) use rare-earth magnets, lasers, and optical components. Reports already suggest export licensing delays for ASML shipments, possibly due to Chinese content in parts.	Potential production bottlenecks and delivery delays for advanced lithography systems; rising compliance costs for OEMs as they trace Chinese-origin components; possible slowdown in fab expansions if tool deliveries slip.
Chemical Consumables	Semiconductor processing uses ceria (CeO) slurry for wafer polishing — a rare-earth oxide historically dominated by China. Any hiccup in cerium supply or licensing could affect CMP steps.	Higher material costs and risk of yield degradation if ceria-based slurries become scarce; fabs may need to qualify alternative abrasives, adding time and complexity to production.
Coatings & Specialty Materials	Rare-earth oxides like yttria (YO) are used for chamber coatings or protective linings in etch and deposition tools. Disruptions here can degrade equipment throughput.	Reduced tool uptime and more frequent maintenance cycles; suppliers may face extended lead times for replacement parts, pushing fabs to hold larger spares inventories.
Magnet-Containing Motion Components	Fabs use thousands of motors, vacuum pumps, actuators—all often built with rare-earth magnets. Throttling magnet supply or adding licensing friction could slow maintenance or expansion.	Delays in equipment maintenance or capacity ramp-up; price spikes for precision motors; pressure on suppliers to redesign for non-rare-earth alternatives, which may reduce performance or increase cost.

Even if TSMC’s core wafer processes don’t use Ho, Tm, or Eu today, the upstream and downstream fabric of chipmaking is threaded with rare-earth-dependent parts. That gives China leverage beyond direct imports.

Where Reporting Trips: Speculation & Overreach

• Some headlines suggest China may bar TSMC from selling chips to U.S. customers unless it obtains Chinese export licenses. That is speculative, with no public Chinese law (yet) explicitly demanding such licensing for chip exports.
• Assertions that “TSMC will be unaffected forever” lean into a comfort narrative; they underplay compliance drag, licensing backlog, and requalification risk among global suppliers.
• The idea that Taiwan’s sourcing from Europe/Japan fully insulates it ignores that many ostensibly non-Chinese suppliers still use Chinese-origin rare-earth feedstock.

What Makes This News Critical

This is not merely a trade skirmish. China has begun weaponizing minerals and process technologies as geopolitical leverage. And of course, America outsourced that dependence for the past few decades—willingly.  By embedding licensing in the supply chain fabric, Beijing gains discretionary choke points — even over firms that don’t directly source raw ore. For supply chains, it’s a shift from “source control” to “trace control.”

For Taiwan (and TSMC), the moment of truth is not now, but if licensing bottlenecks, expansions to light rare earths, or broader enforcement creep in. The “no impact” stance is defensible today — but only within current parameters.

What to Watch Next

• License backlog & review times for rare-earth exports under the new regime.
• Whether China expands controls to light rare earths (e.g. neodymium, cerium) that are more directly used in chip tools and materials.
• Any public statements from ASML, Applied Materials, KLA, or others about supply slowdowns.
• New requalification or compliance costs among semiconductor material and component suppliers.
• Whether China’s policy leans toward facilitation (general licenses, exemptions) or leverage escalation.

With these dynamics unfolding, the semiconductor world must pay attention — not just to silicon and substrates, but to the “ore behind the chip.”

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