Last month Mexico added pork to the list of U.S. products against which it is retaliating for the failure of the U.S. to live up to its obligations under the North American Free-Trade Agreement on the trucking issue. Mexico put a 5% tariff on most U.S. pork imports.
Since 1993 – the year before N.A.F.T.A. was implemented – U.S. agricultural exports to Mexico have increased by 257%, with pork exports growing by 580%, the pork groups pointed out in their letter. Mexico is the second-largest market for the U.S. pork industry, which shipped $762 million of pork south of the border in 2009.