Brazil's Schahin files for bankruptcy protection in wake of scandal
April 17, 2015 at 11:35 AM EDT
SAO PAULO, April 17 (Reuters) - Twenty-eight units of Brazilian engineering firm Grupo Schahin filed for bankruptcy protection on Friday as fallout from a corruption scandal at key client Petróleo Brasileiro SA hampered efforts to refinance up to 6.5 billion reais ($2.1 billion) in debt.