Major automotive lighting suppliers and their customers in the United States

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In the US market, the main automotive lighting suppliers include Koito Manufacturing, Valeo, Magneti Marelli and Stanley Electric. Ford maintains close business relations with these suppliers. Since Magneti Marelli was once a subsidiary of Stellantis-FCA, Stellantis-FCA has more business dealings with Magneti Marelli. Among GM's automotive lighting suppliers, Valeo has a smaller share, while Magna Lighting Systems (formerly OLSA) has a larger share.