---
title: "Report: China stockpiled 343 immersion DUV chipmaking tools"
url: https://www.parallelquant.com/posts/report-china-stockpiled-343-immersion-duv-chipmaking-tools-39f1e3
source_name: "Tom's Hardware"
source_url: https://www.tomshardware.com/tech-industry/semiconductors/china-stockpiled-343-immersion-duv-tools-for-advanced-chipmaking-report-claims-270-asml-scanners-can-produce-7nm-processors-without-sanctioned-euv-tools
published: 2026-10-05T11:35:00.000Z
topics: ["chips", "policy"]
publisher: "Parallel Quant"
---

# Report: China stockpiled 343 immersion DUV chipmaking tools

*2026-10-05 · Source: [Tom's Hardware](https://www.tomshardware.com/tech-industry/semiconductors/china-stockpiled-343-immersion-duv-tools-for-advanced-chipmaking-report-claims-270-asml-scanners-can-produce-7nm-processors-without-sanctioned-euv-tools)*

The Centre for Technology & Statecraft says China has accumulated 343 immersion deep-ultraviolet lithography tools used for advanced chipmaking. It calls for banning exports of all immersion DUV tools to China, echoing the MATCH Act proposed by US legislators.

**Why it matters:** Immersion DUV, used with multi-patterning, is how China can make near-leading-edge AI chips without EUV machines, so a large stockpile blunts the effect of export controls. It raises pressure for broader tool bans, alongside the recent arrest over alleged Nvidia chip smuggling.

**Topics:** chips, policy

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Read the original: https://www.tomshardware.com/tech-industry/semiconductors/china-stockpiled-343-immersion-duv-tools-for-advanced-chipmaking-report-claims-270-asml-scanners-can-produce-7nm-processors-without-sanctioned-euv-tools
Canonical: https://www.parallelquant.com/posts/report-china-stockpiled-343-immersion-duv-chipmaking-tools-39f1e3
Published by Parallel Quant — https://www.parallelquant.com