The US has prevailed in its dispute with Mexico over genetically modified corn that threatened shipments to America's top customer of the grain.

An arbitration panel under the USMCA trade agreement issued its final ruling agreeing with the US that Mexico's efforts to halt imports of GMO corn were not based on science and violated the trade pact, according to US Trade Representative Katherine Tai. A preliminary decision had come out last month, but Friday's ruling makes it official.