By Pratima Desai and Polina Devitt
LONDON, May 27 (Reuters) - Canada is pushing more of its aluminium towards Europe to make the most of higher premiums on offer, after its neighbour the United States imposed a 50% tariff on the metal last year.
A loss of Middle East volumes due to the Iran war has hit Europe hardest and intensified competition with the U.S. for low-carbon supply, driving prices to extreme levels, with policy and prices determining where scarce aluminium is shipped, analysts, traders and aluminium industry sources said.