ASML has denied U.S. allegations that its most advanced chipmaking machines are present in China, pushing back against claims that could tighten export controls and further strain the global semiconductor supply chain. The Dutch company, which holds a near-monopoly on extreme ultraviolet lithography systems, said in a statement that it complies with all export regulations and that no EUV equipment has been shipped to Chinese customers without proper licenses.
The Denial and Its Timing
The denial comes as Washington and Beijing ratchet up their tech rivalry. U.S. officials have repeatedly warned that China might be acquiring advanced chipmaking tools through back channels, potentially fueling its domestic semiconductor industry. ASML, based in Veldhoven, Netherlands, is bound by Dutch export controls that align with U.S.-led restrictions. The company stressed that it has not violated any rules and that it is not aware of any EUV systems operating in China.
Still, the U.S. claims have not been publicly detailed. No specific evidence has been released, and ASML's rebuttal appears aimed at heading off further restrictions that could hurt its business. The company relies heavily on sales to Taiwan, South Korea, and other major chip manufacturers.
Why EUV Machines Matter
EUV lithography machines are the backbone of cutting-edge chip production. They use extreme ultraviolet light to etch incredibly tiny circuits onto silicon wafers, enabling the fabrication of processors used in everything from smartphones to military hardware. Without EUV, a country cannot produce the most advanced semiconductors at scale. That's why access to these machines has become a flashpoint in the U.S.-China technology war.
ASML is the only company in the world that makes EUV systems. Its customers include TSMC, Samsung, and Intel. China has long sought to acquire EUV technology but has been blocked by export restrictions imposed by the Dutch government under U.S. pressure. The new allegations, if proven, would represent a major breach of those controls.
Geopolitical Ripples in the Supply Chain
The dispute threatens to disrupt an already fragile global chip supply chain. Any tightening of export rules could delay deliveries to Chinese chipmakers that rely on older lithography tools, while also prompting Beijing to accelerate its own domestic development efforts. ASML's denial may not satisfy U.S. regulators, who have shown a willingness to expand restrictions unilaterally.
Investors are watching closely. ASML shares dipped slightly after the news broke, reflecting uncertainty about future export policies. The company's order backlog remains strong, but analysts note that any new restrictions could dent revenue from China, which accounted for about 15% of sales last year.
The Dutch government has not commented on the U.S. claims. No formal investigation has been announced, and the lack of transparency on both sides leaves a lingering question: are the allegations based on intelligence or speculation?
