Dutch semiconductor equipment maker ASML has denied reports that one of its advanced extreme ultraviolet (EUV) lithography machines may have reached China in violation of export restrictions. ASML stated it has never shipped an EUV system to China, nor supplied any components, modules, or equipment specifically designed for such machines, and remains in full compliance with export-control regulations.

The company issued this clarification after Bloomberg News reported that U.S. Commerce Secretary Howard Lutnick raised concerns with ASML executives that the technology may have made its way to China despite U.S.-led export controls. ASML rejected these allegations, noting it has consistently adapted its operations to comply with evolving export-control regulations.

The Dutch government reinforced its strict oversight of chip-equipment exports. The Ministry of Foreign Affairs confirmed that semiconductor manufacturing tools, technologies, and related components covered under European Union dual-use regulations and national measures require export licenses and are enforced rigorously.

ASML's EUV machines are among the most advanced tools in semiconductor manufacturing, enabling production of cutting-edge chips for artificial intelligence, high-performance computing, and other advanced applications. The systems are massive—weighing around 180 metric tons and measuring roughly the size of a school bus.

The dispute reflects intensifying U.S. efforts to restrict China's access to advanced semiconductor technologies. In April, U.S. lawmakers proposed legislation aimed at ensuring allied nations align their export-control policies with the United States, with ASML's equipment specifically mentioned in the proposal.

The issue also highlights China's parallel push to develop domestic alternatives. Reuters reported last year that Chinese researchers had built a prototype EUV machine with assistance from former ASML engineers, underscoring Beijing's drive to reduce reliance on foreign chipmaking technology.