American Pacific Management to Present at B. Riley & Co. 9th Annual Investor Conference

LAS VEGAS, April 1, 2008 /PRNewswire-FirstCall/ -- American Pacific Corporation NASDAQ: APFC, today announced that Chairman and Chief Executive Officer, John R. Gibson, along with President and Chief Operating officer, Dr. Joseph Carleone, and Vice President and Chief Financial Officer, Dana M. Kelley, are scheduled to present at the B. Riley & Co. 9th Annual Investor Conference, April 2 - 4, 2008 in Las Vegas, Nevada. A copy of managements' presentation will be available on the Company's website.

About American Pacific Corporation

American Pacific is a leading manufacturer of specialty and fine chemicals within its focused markets, as well as propulsion products sold to defense, aerospace and pharmaceutical end markets. Our products provide access to, and movement in, space via solid fuel and propulsion thrusters and represent the key active ingredient in drug applications such as HIV, epilepsy and cancer. We also produce specialty chemicals utilized in various applications such as fire extinguishing systems, as well as manufacture water treatment equipment. Our products are designed to meet customer specifications and often must meet certain governmental and regulatory approvals. Additional information about American Pacific can be obtained by visiting the Company's web site at http://www.apfc.com.