| 1 | TM-1 | 28 May 1998 |
| 2 | Power of Attorney | 14 Aug 2002 |
| 3 | TM-16 | 14 Aug 2002 |
| 4 | TM-57 | 16 Jul 2009 |
| 5 | Correspondence | 16 Apr 2010 |
| 6 | Correspondence | 08 Dec 2010 |
| 7 | Correspondence | 28 Jul 2011 |
| 8 | Correspondence | 31 Oct 2012 |
| 9 | Correspondence | 18 Jul 2013 |
| 10 | Correspondence | 29 Aug 2013 |