OAK BROOK, Ill.--(BUSINESS WIRE)--Union Partners I LLC (“Union”) through its assignee Lee Steel Holdings LLC (d/b/a, “Lee Steel”) announces it has closed on its Asset Purchase Agreement with Lee Steel Corporation which included Lee Steel Corporation’s Wyoming, MI operations (a/k/a, Grand Rapids facility), certain working capital assets and all of its corporate operations effective September 18, 2015. “This is a new day for Lee Steel’s employees, customers and vendors and we look forward to gett