I am surprised this wasn't sooner!

U.S. meat supplies to Russia have been banned. The Russian Federation and the United States differ in the assessment of the causes of the situation. Russia claims that the reason for the ban was the presence of ractopamine drug in US meat. America insists that Russia’s actions were a response to the adoption of the Magnitsky Act by the Senate and accuses Russia of violating WTO rules


China closes pig farms caught using the illegal ractopamine

Ractopamine has been banned in the European Union , Taiwan, mainland China and Russia.[1][2]