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| 7/18/2016 | EM | Moody’s gives Duke Paranapanema debt Ba2/Aa1.br |
| 2/26/2016 | EM | Moody’s cuts Brazilian water, gas, electric, infrastructure companies |
| 2/19/2016 | EM | S&P cuts Brazilian infrastructure companies after sovereign downgrade |
| 7/29/2015 | EM | S&P lowers Brazil companies to negative view |
| 7/29/2015 | EM | S&P lowers Brazil companies to negative view |
| 12/22/2014 | EMGN | S&P affirms Duke Paranapanema |
| 4/11/2014 | EM | Moody's assigns Duke debt Baa3/Aaa.br |
| 6/10/2013 | EM | Moody's ups Duke, rates debt Baa3, Aaa.br |
| 7/24/2012 | EM | Moody's: Duke Energy unaffected |
| 12/19/2011 | EM | S&P ups Duke Energy, Brazil |
| 12/8/2011 | EM | Moody's ups Duke Energy |
| 8/27/2010 | EM | Moody's lifts Duke notes |
| 12/31/2008 | EM | Moody's rates Duke Paranapanema's floaters A1.br |
| 8/28/2008 | EM | Moody's ups Duke Paranapanema |
| 8/28/2008 | EM | S&P rates Duke Paranapanema bonds BB |
| 8/28/2008 | EM | Moody's rates Duke bonds Aa3.br, Ba2 |
| 8/11/2008 | EM | Moody's may lift 10 Brazil electric utilities |