Semiconductor industry leaders are warning the Trump administration that a proposed tightening of visa rules risks shrinking a vital talent pool and undermining efforts to expand chip manufacturing in the U.S.

More than two dozen semiconductor executives — including two unnamed CEOs — have objected to a Department of Homeland Security plan to put stricter limits on the F-1 student visas that serve as a critical pipeline to the tech workforce. Their mostly anonymous comments, ahead of a formal rule-making, joined a total of more than 17,000 submissions from across academia.

In commentary filed with the government, chip executives questioned the move. “I am deeply troubled,” one unidentified CEO wrote. “The global race for chip supremacy is intensifying, and these restrictions risk ceding

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