Washington, 7 October 2025 — Chinese semiconductor companies purchased USD 38 billion worth of advanced chipmaking tools from U.S. and allied suppliers in 2024, a bipartisan U.S. congressional investigation has found, a figure that critics say underscores serious enforcement gaps in export restriction policies.
The investigation, conducted by the U.S. House Select Committee on China, revealed that these purchases were legal under current rules, despite intensified efforts by the U.S., Japan, and the Netherlands to curb China’s access to sensitive technologies. The report attributes the loophole to inconsistent export control regimes and fragmented regulation among key supplier nations.
Five leading equipment manufacturers, Applied Materials, Lam Research, KLA, ASML, and Tokyo Electron, accounted for nearly 39 percent of the total sales to China. The report noted that China’s purchases surged by 66 percent compared to 2022, soon after many tool export restrictions were first introduced.
Among the Chinese buyers flagged in the report are SwaySure Technology, Shenzhen Pengxinxu Technology, and SiEn (Qingdao) Integrated Circuits. These firms are singled out for close scrutiny, with legislators alleging connections to a covert support network linked to Huawei. U.S. officials had already imposed export limits on some of these entities.
The committee’s findings emphasize that the current patchwork of controls is failing in its purpose. They call for broader, multilateral restrictions that target entire categories of chipmaking tools and components, rather than blacklists focused on individual Chinese firms.
In response, Tokyo Electron acknowledged that while sales to China are beginning to ease under new rules, “the outcome is still desired that has not yet been achieved.” Meanwhile, other firms named in the report declined immediate comment pending full release of the congressional document.
Why This Matters for Asia & Global Tech
1. Undermining export control strategy
The scale of legal purchases reveals how fragmented export regimes across the U.S. and allied nations may undermine strategic policy aims. Without unified enforcement, China can still source advanced tools through supplier nations with laxer rules.
2. Surge in China’s manufacturing capabilities
Access to high-end chipmaking equipment accelerates China’s ability to produce more advanced semiconductors internally. That risks narrowing the technological lead held by Western and East Asian firms.
3. Acceleration of domestic alternatives
Beijing may redouble its efforts to develop indigenous chip equipment suppliers, particularly in heavily restricted areas like lithography, inspection, and patterning, a move that could eventually reduce foreign leverage.
4. Supply chain and market ripple effects
Equipment orders of this magnitude put pressure on global supply chains, from specialty optics and tool calibration firms in Japan and Europe to precision engineering vendors in Southeast Asia. Better demand visibility could reshape component sourcing and localization strategies.
5. Valuation and competitive realignment
Companies in the semiconductor ecosystem, whether chipmakers, foundries, or equipment vendors, may reassess their growth expectations, competitive positioning, and capital allocation strategy, given the possibility that China’s chip capabilities may strengthen faster than many anticipate.

