Exhibit 12.1

American Pacific Corporation
Computation of Consolidated Ratio of Earnings to Fixed Charges
(Dollars in thousands)

	Six Months Ended
	March 31,					Year Ended September 30,
	2006			2007		2002		2003		2004			2005			2006
Fixed Charges:
Interest Expensed and Capitalized	$	3,728		$	5,841	$	4,180	$	1,696	$	—		$	—		$	10,175
Amortized Premiums, Discounts and Capitalized Expenses Related to Indebtedness		397			619		—		—		—			—			1,256
An Estimate of the Interest within Rental Expense		134			155		157		131		190			247			327
Preference Security Dividend Requirements of Consolidated Subsidiaries		—			—		—		—		—			—			—
Total Fixed Charges	$	4,259		$	6,615	$	4,337	$	1,827	$	190		$	247		$	11,758
Earnings:
Income (Loss) from Continuing Operations before Income Tax	$	(5,378	)	$	1,525	$	12,899	$	14,509	$	(1,231	)	$	(18,910	)	$	(7,303	)
Fixed Charges		4,259			6,615		4,337		1,827		190			247			11,758
Amortization of Capitalized Interest		—			—		—		—		—			—			—
Distributed Income of Equity Investee		—			—		—		—		—			—			—
Share of Pre-Tax Losses of Equity Investee If Guarantees are in Fixed Charges		—			—		—		—		—			—			—
Interest Capitalized		—			—		—		—		—			—			—
Preference Security Dividends		—			—		—		—		—			—			—
Minority Interest		—			—		—		—		—			—			—
Total Earnings	$	(1,119	)	$	8,140	$	17,236	$	16,336	$	(1,041	)	$	(18,663	)	$	4,455
Ratio of Earnings to Fixed Charges		—			1.23x		3.97x		8.94x		—			—			0.38x
Total Insufficiency	$	5,378		$	—	$	—	$	—	$	1,231		$	18,910		$	7,303