This award recognizes the supply chain, quality and development performance of the three sites that go beyond General Motors' expectations in terms of innovation policy and industrial excellence. Mellrichstadt , Heidelberg and Lake Zurich plants are specialized in the manufacture of metal, plastic and metallo-plastic solutions for interior and exterior trim applications, as well as clipping solutions, cage nuts and rivets. These products are exported around the world and provides the brands of the American giant: Chevrolet, Buick, GMC and Cadillac.