Aluminum jumped at the open in London after Rio Tinto Group moved to halt alumina shipments to Russia, another threat to global supply of the so-called everywhere metal that will also fan global inflation.

The metal rose as much as 4.8% on the London Metal Exchange and was trading up 4.1% at $3,519 a ton as of 9:47 a.m. in Shanghai. Used in everything from cans to window frames, aluminum has risen around 25% this year.