Both LME and CME lock out Russian cu2 days ago the price surge for cu was caused by both London Metals Exchnage and Chicago Metals Exchange refusing to trade Fussian origin cu. The market expects Russia to cheat to avoid this ban by having new copper chopped up to look like scrap cu; and R is alreadybdoing that by using Quigar labor in the far west Muslim province of China. Stockhouse currently reports cu at $4.31 C per pound .