General Motors Co. (NYSE:GM) is said to be in negotiations with Lockheed Martin Corporation (NYSE:LMT) to manufacture parts for the defense contractor’s weaponry, according to a report published on Monday.

GM may manufacture widely used components to help Lockheed boost munitions production, though the exact parts it could produce are still being determined, the Wall Street Journal reported on Tuesday, citing sources close to the matter.

GM’s CEO, Mary Barra, has engaged in discussions with Trump administration officials about a larger military role for the automaker. GM, which re-entered the defense business nearly a decade ago with its GM Defense subsidiary, is exploring opportunities to expand its defense business and identify new revenue sources.

Ford Motor Company (NYSE:F) CEO Jim Farley has also stated that his company is in discussions with the U.S. government about military-related projects, as per the report.

General Motors and Lockheed Martin did not immediately respond to Benzinga‘s request for comments.