Impacted by the news that domestically-produced DUV lithography machines have begun mass production, ASML US shares dropped over 7% during trading.

Odaily reported that, influenced by the news of "a state-owned enterprise has begun mass production of DUV lithography machines," a certain exchange's US stock fell more than 7% during trading hours and is currently trading at around $1,633.

Previously, The Information cited sources saying that a company backed by Chinese state capital has begun mass production of independently developed DUV (deep ultraviolet) lithography equipment, which marks an important step for China's semiconductor industry in promoting domestic alternatives.