By Richa Naidu LONDON (Reuters) -British American Tobacco Plc is in advanced talks to transfer its Russian business to Russia’s SNS Group of Companies, its distributor, SNS said, after Moscow suggested it could nationalise assets of foreign firms that left the country. Many international firms with investments or operations in Russia have withdrawn since Moscow launched its invasion of Ukraine on Feb. 24 and the West imposed sweeping sanctions. BAT, which makes Pall Mall and Rothman’s cigarettes, controls just under 25% of the Russian tobacco market. “The process of transferring the management…