A must read article from financial times.The LME and CME will not be able to trade any new Russian aluminium, copper or nickel. Russia supplies about 6% of the world’s aluminium, 5% of nickel and 4% of copper.
https://www.ft.com/content/ab9157d5-b47f-408f-b1fb-0ee9bd7a823c?sharetype=blocked