Shares of ASML Holding, the Dutch semiconductor equipment manufacturer, declined following reports of proposed US Congressional measures that would impose additional export restrictions on China.

The proposed restrictions target the already strained China market for semiconductor equipment, adding pressure to companies that depend on Chinese demand for their products. ASML is a critical supplier of photolithography equipment used in semiconductor manufacturing.

The development comes amid ongoing tensions between the US and China over technology transfer and national security concerns in the semiconductor industry. Previous restrictions have already limited some technology exports to Chinese companies.

ASML's stock movement reflects investor concerns about potential revenue impact from further restrictions on one of the company's significant markets. The semiconductor equipment sector has been particularly sensitive to geopolitical developments affecting US-China trade relations.