Marfrig Global Foods SA said sales to the U.S. account for 2 percent of beef export proceeds and less than 1 percent of revenue at Brazil's No. 2 meatpacker. 

In a Friday statement, Marfrig said the U.S. only allowed imports of Brazilian fresh beef a year ago. The U.S. Department of Agriculture decided on Thursday to impose the ban over safety concerns did not affect the bulk of Brazilian beef imports, which are frozen.