2012 Annual Meeting of Stockholders 1 Safe Harbor Statements and Reconciliations of Non-GAAP Measures Safe Harbor Statements Some of the statements in this presentation constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than those of historical facts included herein, including those related to the financial outlook, goals, business strategy, projected plans and objectives of management of American Pacific Corporation (the “Company”) for future operations and liquidity, are forward-looking statements. Such forward-looking statements involve known and unknown risks and uncertainties that may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements, expressed or implied by such forward-looking statements. Factors that could cause actual results to differ materially from such forward-looking statements include risks and uncertainties detailed in the Company’s Annual Report on Form 10-K for the fiscal year ended September 30, 2011 and the Quarterly Report on Form 10-Q for the quarter ended December 31, 2011. Reconciliation of Non-GAAP Measures Throughout this presentation we provide both GAAP and Non-GAAP financial measures. For additional information and the reconciliation of these measures to the appropriate GAAP measure, as required by Securities and Exchange Commission Regulation G, please refer to our Form 8-Ks dated March 13, 2012 and December 14, 2011, which provide definitions of these Non-GAAP measures and a reconciliation of these Non-GAAP measures to the most comparable GAAP measures. This presentation and the Form 8-Ks referred to herein are available in the “Investors” section of the Company’s website at www.apfc.com. | 
