Gentex Corporation
Estimated Cost: $5-$8 million in 2018
Zeeland, Mich.-based Gentex manufactures automotive products, including auto-dimming rearview mirrors. The company relies on imports from China for its raw materials, so Gentex President and CEO Steven R. Downing estimated that the tariffs would cost the company between $5 million and $8 million for the second half of 2018.