LONDON, April 27 (Reuters) – Europe’s leading power market Nord Pool is working to find a solution to restore access to Rusal’s Swedish aluminium smelter after it was suspended from trading in the wake of U.S. sanctions on the Russian company. Nord Pool suspended Rusal’s Kubal smelter last week from trading on its exchange. “We are now cooperating with Kubikenborg Aluminium to find a solution,” a spokeswoman told Reuters by email on Friday in a response to a query. The suspension had been due to a violation of Nord Pool’s rule book, which operates independently of any U.S. sanctions on Rusal, she added. Details of the violation could not be provided due to “the commercial nature of this relationship”, Nord Pool added. The Kubal smelter in Sweden is Rusal’s only primary metal production facility outside of Russia. It produced 123,000 tonnes of aluminium metal last year, or 3 percent of Rusal’s total.