The United States and the United Kingdom will ban Russian exports of aluminum, copper, and nickel from the world’s largest metal exchanges, the governments of the U.S. and U.K. announced on April 12. Metals are Russia’s second-largest export commodity after energy products, though sanctions have decreased their value since the start of the full-scale invasion. The new action will block Russian metal producers from profits from the London Metal Exchange (LME) and the Chicago Mercantile Exchange (CME). According to a press release from the U.K. government, the move targets $40 billion in Russian…