It was formally filed on September 4, 1987. It is used to assemble Oldsmobile and Buick automobiles, employing 6,350 workers.
Most components used at the plant are of domestic origin.
Some 2 percent are sourced aboard, including radios, radio-cassettes, wire harnesses, instrument panel pads and steering wheels. Zone procedures will exempt GM from duty payments on the foreign parts it uses in its exports. On domestic sales, the company will be able to defer duty and to take advantage of the same duty rate available to importers of finished autos. Overall, the average duty rate on the foreign components used by GM is 4.3 percent compared with the rate for finished autos of 2.5 percent. The savings from subzone status will contribute to the company's overall cost reduction program, helping its U.S. plants become more competitive with auto production plants offshore.