United Steelworkers is the common name for the United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union. It has diversified considerably beyond the original metalworking trades, to include occupations as diverse as nurses' aides and taxi drivers, to represent 1.2 million workers. Its president is Leo Gerard.
Since 2005, it has absorbed the American Flint Glass Workers, the Industrial, Wood and Allied Workers of Canada (IWA), the Paper, Allied-Industrial, Chemical and Energy Workers International Union (PACE), the Brotherhood of Maintenance of Way Employees (Canada), and other smaller independent unions.
The union designated Carolyn Bartholomew, Chairman, U.S.-China Economic and Security Review Commission, as a director of Kaiser Aluminum.