ADA-ES INC Form PRE 14A: Preliminary proxy statement
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2010-04-09: Form PRE 14A; Period of report 2010-06-16; Description PRELIMINARY PROXY STATEMENT; Document dpre14a.htm.
- 2008-10-22: Form PRE 14A; Period of report 2008-10-23; Description PRELIMINARY PROXY STATEMENT; Document dpre14a.htm.
- 2007-04-06: Form PRE 14A; Period of report 2007-06-19; Description PRELIMINARY PROXY STATEMENT; Document adaespre14a.txt.
| Filed | Form | Period of report | Description | Document |
|---|---|---|---|---|
| 2010-04-09 | PRE 14A | 2010-06-16 | PRELIMINARY PROXY STATEMENT | dpre14a.htm |
| 2008-10-22 | PRE 14A | 2008-10-23 | PRELIMINARY PROXY STATEMENT | dpre14a.htm |
| 2007-04-06 | PRE 14A | 2007-06-19 | PRELIMINARY PROXY STATEMENT | adaespre14a.txt |