Ownership History
| HYPERTHERM INC | $1,500,000 | | 3571/0035 | 99 | 12/16/2008 |
| HYPERTHERM INC | $825,000 | | 2948/0218 | 99 | 01/12/2004 |
| 20 AIRPARK LLC | $0 | | 2414/0601 | 99 | 08/04/1999 |
| WATERFORD IRISH STOVES, INC | $775,000 | | 2216/0141 | 99 | 08/29/1996 |
| WATERFORD IRISH STOVES, INC | $0 | | 2216/0138 | 99 | 08/02/1996 |