Flat Rock Assembly Plant, formerly known as Ford's Michigan Casting Center (MCC) (1972–81), Mazda Motor Manufacturing USA (1987–92) and AutoAlliance International (1992–2012), is a Ford Motor Company assembly plant located at 1 International Drive in Flat Rock, Michigan in Metro Detroit. The plant currently consists of 2,900,000 square feet of production space and employs 1,685 hourly workers represented by the United Auto Workers Local 3000, as well as 140 salaried workers.