"But ASML says it has never shipped extreme ultraviolet lithography systems to China and has complied with tightening restrictions..."

A company spokesperson said that ASML has never shipped an EUV machine to China. Read more at straitstimes.com. Read more at straitstimes.com.

ASML has pushed back against those concerns, noting that EUV, or extreme ultraviolet, lithography tools used to print tiny chip circuits are made in small quantities and…