Apple-supplier Foxconn will announce a plant in Wisconsin on Wednesday evening, accompanied by President Donald Trump and Wisconsin Gov. Scott Walker, a source with knowledge of the announcement told CNBC.

U.S. House Speaker Paul Ryan, R-Wis., will also be present at the announcement in Washington, a source said. No exact location for the plant has been chosen — but the area of southeast Wisconsin between Milwaukee and Chicago is under consideration, according to a source.

A source said that seven states were considered for the expansion, but Wisconsin appears to be a preliminary winner, and Ohio is a contender. About 10,000 jobs could be created.

The Wall Street Journal reported that Foxconn may be eyeing a new U.S. plant for display panels.