Forty-nine members of Congress have written to U.S. Trade Representative (USTR) Ron Kirk saying the anti-dumping duties Mexico is set to place on U.S. poultry would have “devastating economic impact” if finalized.

Mexico will make a final decision by mid-August on antidumping duties against U.S. imports of chicken leg quarters. The duties proposed range from 64% to 129%. The letter states that Mexico is using a calculation “that is unacceptable to the World Trade Organization (WTO). Using the average cost of production assumes that every part of the chicken should be paid at least at this cost. This assumption is flawed, discriminates against U.S. producers and concerns us members.”

The members reminded USTR that this accelerated cost of production approach could encourage Mexico and other countries to institute “frivolous anti-dumping actions” against U.S. beef, pork and dairy sectors.