WASHINGTON — Democratic lawmakers called on the Trump administration on Thursday to review an investment in Kentucky by a Russian aluminum company that they say has raised concerns about Russian influence on the economy and national security of the United States.

The Russian aluminum company, Rusal, announced on Thursday that its board had approved a $200 million investment in a planned aluminum plant in Ashland, Ky., in partnership with Braidy Industries, a private company based there.

The announcement came less than four months after the administration lifted sanctions on Rusal and its parent company, EN+. The sanctions had banned the companies from doing business in the United States, and would have prevented the Kentucky deal, under which Rusal will own 40 percent of the plant and will supply it with unfinished aluminum for processing and sale to large institutional buyers, including automakers and airplane manufacturers.

The sanctions had been imposed last year because the companies were owned and controlled by the influential Russian oligarch Oleg V. Deripaska, a Kremlin ally who the Treasury Department accused of aiding Russia’s “malign activity” around the world.