Dutch leader’s dominance in chipmaking gear not at risk amid China’s lithography push – unless the US steps in.

A Shanghai-based company has begun making immersion DUV lithography machines, The Information reported. ASML shares dropped 6.5%. China's share of ASML sales fell to 14%.

The machines are expected to be delivered this year to leading Chinese chipmakers, including Semiconductor Manufacturing International Corp, Hua Hong Semiconductor and ChangXin…