A group of United States automotive suppliers said on Monday that the Bush administration's protective tariffs on foreign steel have driven up their costs, forcing them to cut jobs and consider importing steel and other materials, Reuters reported. According to Reuters, the companies, who are some of the largest purchasers of US steel, said they may import more steel from countries that are exempt from the tariffs, such as Brazil, Argentina and Turkey. They may also import parts that use steel, they said, Reuters added.