UPDATE 1-Russia's Uralkali to up potash price for China by 10 pct
July 29, 2014 at 04:55 AM EDT
MOSCOW, July 29 (Reuters) - Russia's Uralkali, the world's largest potash producer, said it may increase the price for a new 2015 supply contract with China by 10 percent, pressing efforts to restore prices to levels seen before last year's slump.