"Russia's state energy holding company, Inter RAO, has started restricting electricity supplies to China after Vladimir Putin's key ally and trading partner rejected a price hike. "The dispute stems from China facing severe electricity problems due to droughts and limits on increasing domestic coal production, while Russia is trying to offset the slump in its currency, which has hurt export revenues. "One expert told Newsweek that China is displaying a "hard-nosed" negotiating approach over Russia's demand and that it's in a strong bargaining position.... ... ... "...Chinese energy firms and the state have always been famously hard-nosed and very patient...