WASHINGTON (Reuters) - A group of Republican lawmakers plans to unveil legislation this week to keep Americans from investing in foreign defense companies with ties to China’s military, according to a document seen by Reuters, the latest in a string of measures aimed at curbing U.S.

Representatives Mike Gallagher, Jim Banks and Doug LaMalfa plan to introduce the bill, which would require Treasury Secretary Steve Mnuchin to submit a report to Congress listing foreign defense companies that have “substantial contracts with, ties to, or support from” the Chinese military.

On Friday, President Donald Trump said his administration will study ways to safeguard Americans from the risks of investing in Chinese companies, ratcheting up pressure on the firms to comply with U.S.

Earlier this month, an independent board tasked with administering federal worker and military pension funds halted plans to allow one of its funds to track an index that includes controversial Chinese companies, under pressure from the White House.

The Senate passed legislation earlier this month that could prevent some Chinese companies from listing their shares on U.S.