JOINT FILING AGREEMENT
| CUSIP No. 000000000 | Page 1 of 1 Page |
Exhibit 1
Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree, as of September 19, 2011, that only one statement containing the information required by Schedule 13D, and each amendment thereto, need be filed with respect to the ownership by each of the undersigned of shares of common stock of American Pacific Corporation, a Delaware corporation, and such statement to which this Joint Filing Agreement is attached as Exhibit 1 is filed on behalf of each of the undersigned.
| MILL ROAD CAPITAL, L.P. | ||
| By: | Mill Road Capital GP LLC, | |
| its General Partner | ||
| By: | /s/ Xxxxxx X. Xxxxx | |
| Xxxxxx X. Xxxxx | ||
| Management Committee Director and Chairman | ||
| MILL ROAD CAPITAL GP LLC | ||
| By: | /s/ Xxxxxx X. Xxxxx | |
| Xxxxxx X. Xxxxx | ||
| Management Committee Director and Chairman | ||
| XXXXXX X. XXXXX | ||
| /s/ Xxxxxx X. Xxxxx | ||
| Xxxxxx X. Xxxxx | ||
| XXXXX X. XXXXXXXXX | ||
| /s/ Xxxxx X. Xxxxxxxxx | ||
| Xxxxx X. Xxxxxxxxx | ||
