Real slump bites Brazil's CSN, others despite debt hedging efforts
August 26, 2015 at 14:46 PM EDT
SAO PAULO, Aug 26 (Reuters) - While many of Brazil's largest companies have grown savvy about hedging their debt against big currency swings, an increasing number could feel the heat from the real's plunge to a more than 12-year low due to poor planning and rising debt, bankers said.