Firms close to Russia's Prokhorov buy 5.34 pct of Uralkali- sources
December 20, 2013 at 02:58 AM EST
MOSCOW, Dec 20 (Reuters) - Firms close to Russian tycoon-turned-politician Mikhail Prokhorov are buying 5.34 percent of Uralkali, the world's largest potash miner, on the market, two sources familiar with the deal told Reuters on Friday.