| Company | Share | Date / Documentation |
|---|---|---|
| Ltd Energia | 20% (Former) 20% (Former) 20% (Former) 20% (Former) 20% (Former) 20% (Former) 20% (Former) October 29, 2013 July 10, 2013 August 29, 2012 July 27, 2012 July 20, 2012 July 19, 2012 November 17, 2011 | |