8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): August 9, 2012

AMERICAN PACIFIC CORPORATION

(Exact name of registrant as specified in its charter)

Delaware	1-8137	59-6490478
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

3883 Howard Hughes Parkway, Suite 700, Las Vegas, Nevada	89169
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (702) 735-2200

N/A

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01 Other Events

On August 9, 2012, American Pacific Corporation (the “Company”) called $40 million of the outstanding principal amount of its 9% Senior Notes due 2015 (the “Notes”) for redemption with a redemption date of September 8, 2012 (the “Redemption Date”). The redemption price for the Notes is 102.25% of the principal amount of the Notes being redeemed, plus accrued and unpaid interest to the Redemption Date.

The Notes were issued pursuant to the Indenture, dated as of February 6, 2007, between the Company and Wells Fargo Bank, N.A., as trustee.

A copy of the Notice of Partial Redemption dated August 9, 2012 is attached hereto as Exhibit 99.1.

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Item 9.01 Financial Statements and Exhibits

(d) Exhibits.

Exhibit	Description
99.1	Notice of Partial Redemption dated August 9, 2012.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	AMERICAN PACIFIC CORPORATION
Dated: August 10, 2012	By:	/s/ JOSEPH CARLEONE
		Name: Joseph Carleone, PH.D.
		Title: President and Chief Executive Officer

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EX-99.1

EXHIBIT 99.1

NOTICE OF PARTIAL REDEMPTION

to the Holders of

AMERICAN PACIFIC CORPORATION

9% SENIOR NOTES DUE 2015

CUSIP NUMBER: 028740 AF5

On behalf of American Pacific Corporation, notice is hereby given that pursuant to paragraph 5(a) of the Notes and Section 3.7 of the Indenture dated as of February 6, 2007 between American Pacific Corporation (the “Company”) and Wells Fargo Bank, National Association (the “Trustee”), the Company has elected to redeem $40,000,000 of its outstanding 9% Senior Notes due 2015 on September 8, 2012 (the “Redemption Date”) at a redemption price of 102.250% plus accrued and unpaid interest to the Redemption Date (the “Redemption Price”). Terms used in this Notice of Partial Redemption and not otherwise defined shall have the meanings assigned to them in the Indenture.

The Note to be redeemed is Note No. 1 payable to Cede & Co. in the principal amount of One Hundred Ten Million Dollars ($110,000,000). On the Redemption Date, the Redemption Price shall become due and payable upon $40,000,000 of such Note. Payment of the Redemption Price shall be made, on or after the Redemption Date, at the office of the Trustee. FROM AND AFTER THE REDEMPTION DATE, INTEREST ON THE PORTION OF THE NOTE THAT IS REDEEMED SHALL CEASE TO ACCRUE. After the Redemption Date, upon surrender of the outstanding Note, a new Note in principal amount equal to the unredeemed portion shall be issued upon cancellation of the original Note.

The Trustee will act as Paying Agent with respect to the partial redemption of the Note. As required by the Indenture, the redeemed Note must be presented and surrendered to the Paying Agent in order to receive payment of the Redemption Price. Payment of the Redemption Price including the accrued interest to the Redemption Date will be made on or after the Redemption Date, upon presentation and surrender of the Note to the Trustee at one of the addresses set forth below:

Registered/Certified Mail: Wells Fargo Bank N.A. Corporate Trust Operations PO Box 1517 Minneapolis, MN 55480-1517 Air Courier: Wells Fargo Bank N.A. Corporate Trust Operations N9303-121 Sixth & Marquette Ave. Minneapolis, MN 55479 In Person: Wells Fargo Bank Northstar East Building 608 2^nd Ave So., 12^th Fl. Minneapolis, MN 55479

A $25.00 wire transfer fee will be deducted from each payment requested to be made by wire. When inquiring about this redemption, please inform the customer service representative of the CUSIP number of the affected security. Customer Service can be reached TOLL FREE at 1-800-344-5128.

Unless the Company defaults in making the Redemption Payment, interest on the portion of the Note being redeemed will cease to accrue on and after the Redemption Date, and the only remaining right that the holder of the Note will have with respect to the portion of the Note that was redeemed is to receive payment of the Redemption Price upon surrender to the Paying Agent of the Notes.

IMPORTANT TAX INFORMATION

Under the Internal Revenue Code of 1986, the Paying Agent may be obligated to withhold 28% from payments of the Redemption Price to holders who have failed to furnish the Paying Agent with a correct Taxpayer Identification Number. To avoid the application of these provisions, a holder should submit its

certified Taxpayer Identification Number on a properly completed IRS Form W-9 (available at http://www.irs.gov) when presenting its certificates (or should submit a properly completed IRS Form W-8BEN or other certification establishing an exemption from withholding, if applicable).

Dated:  August 9, 2012	American Pacific Corporation
	By:  Wells Fargo Bank, National Association, as Trustee

*This CUSIP Number has been assigned to this issue by Standard & Poor’s Corporation and is included solely for the convenience of the Note holders. None of the Company, the Trustee or the Paying Agent shall be responsible for the selection or use of this CUSIP Number and no representation is made as to the correctness or accuracy of the CUSIP number listed in any redemption notice or printed on the Notes.

Page 2 of Exhibit 99.1