The increase on some 90 percent of American products is expected to begin Thursday. Mexico plans to raise tariffs from 10 percent to 45 percent on U.S. goods going into the country such as Christmas trees, toilet paper, grapes and more.
The increase in export duties will hit makers of U.S. goods in dozens of states.
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About $2.4 billion worth of exports are expected to be affected.
As part of the fiscal year 2009 appropriations bill, Congress banned some Mexican trucks on U.S. roads.