CHATTANOOGA – A new seat system supplier for the Volkswagen plant in Chattanooga will create 120 jobs. A statement Monday said the new joint-venture company, Chattanooga Seating Systems, is 51 percent owned by Hollingsworth Logistics of Dearborn, Mich., and 49 percent owned by Magna Seating, a subsidiary of Canadian auto parts maker Magna International. The Volkswagen plant at Chattanooga plans to begin production of a new midsize sedan in early 2011 and eventually hire about 2,000 VW employees. A VW spokesman in Chattanooga, Guenther Scherelis, said the Chattanooga Seating Systems jobs are separate from 500 jobs that VW executives previously announced will be created in the plant’s supplier park.