LONDON (Reuters) -The British government said on Thursday it had sanctioned steel manufacturing and mining company Evraz, whose biggest shareholder is sanctioned billionaire Roman Abramovich, in response to Russia’s invasion of Ukraine. “The steel manufacturing and mining company operates in sectors of strategic significance to the Government of Russia,” the government said in a statement. “Today’s asset freeze means no UK citizen or company can do business with them.” The government issued a separate licence which said people could continue business operations involving Evraz’s North American…