| Company | Share | Date / Documentation |
|---|---|---|
| Ltd Delta | 100% (Former) 15% (Former) 15% (Former) 15% (Former) 15% (Former) July 4, 2018 June 6, 2012 August 19, 2011 November 11, 2010 January 29, 2010 | |
| Ltd Delta-1 | 10% (Former) 10% (Former) 10% (Former) | |