The company said in a response that it could not confirm the report, but that it abides by all export laws, and so any equipment it has sold was either granted an export license or does not fall under restrictions.
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Nieuwsuur reported that ASML had sold parts to a subsidiary of state-owned China Electronics Technology Group, an important supplier to the Chinese army.
ASML, the biggest maker of equipment used to manufacture chips, does not disclose information about its customers.
Chipmakers around the world are known to use its tools, including SMIC, China’s biggest chipmaking firm. China was ASML’s largest market in 2024, representing 36% of sales or around 10 billion euros ($11.6 billion) worth.
Reporting by Toby Sterling, editing by Bart Meijer