U.S. revises chip-equipment bill but still targets ASML DUV tools, bans use by SMIC (中芯国际) and Changjiang Changxin (长江长鑫)

Summary

It has been reported that the U.S. has revised proposed legislation aimed at tightening controls on semiconductor equipment bound for China, but the changes leave in place strict limits on the use of ASML’s deep ultraviolet (DUV) lithography machines and expressly bar their use by certain Chinese firms, including SMIC (中芯国际) and Changjiang Changxin (长江长鑫). The move signals Washington’s continued focus on choking off advanced production capabilities even as lawmakers tweak the bill’s scope.

Background

ASML, the Dutch supplier long at the center of export-control debates, has previously been blocked from selling its most advanced EUV machines to China; now DUV tools — historically more widely available — face renewed scrutiny. Reportedly, the revised U.S. text would prevent U.S.-origin technology embedded in those systems from enabling Chinese fabs on a specified list to scale production. Why DUV now? Because even less-advanced lithography can be decisive for certain nodes and memory production, and regulators fear incremental improvements will undercut export-control objectives.

Targets and likely effects

The ban’s named beneficiaries — or victims, depending on perspective — include SMIC (中芯国际), China’s largest contract chipmaker, and Changjiang Changxin (长江长鑫), a memory-focused firm. It has been reported that these companies would no longer be able to lawfully use ASML DUV machines that contain U.S. components, effectively widening the net of restrictions beyond previous measures. For Western suppliers and the Netherlands, the proposal raises thorny choices about compliance and multilateral coordination; for China, it intensifies incentives to accelerate domestic lithography and materials development.

Geopolitics and the road ahead

This is not just a trade tweak. It sits at the intersection of industrial policy and geopolitics: export controls, national-security reviews, and U.S. efforts to slow China’s ascent in semiconductors. Will European suppliers comply fully? Will Beijing redouble its push for self-reliance? Markets and supply chains will be watching closely as the bill moves through Congress and as companies weigh legal and commercial risks.