U.S. watchdog casts cloud over Alpha Natural Resource's restructuring
May 05, 2016 at 18:07 PM EDT
CHICAGO, May 5 (Reuters) - The restructuring plan of bankrupt Alpha Natural Resources could be held up because a unit of consulting firm McKinsey & Co. failed to fully disclose connections with potential buyers of the coal miner's assets, a U.S bankruptcy watchdog warned this week.