Exhibit 12.1

The Mosaic Company

Computation of Ratio of Earnings to Fixed Charges

(in millions, except for ratio)

	Three Months Ended August 31, 2011			2011			2010			2009			2008			2007
Earnings:
Earnings from consolidated companies before income taxes	$	729.7		$	3,271.3		$	1,189.7		$	2,905.7		$	2,682.4		$	505.7
Add:
Total fixed charges (per below)		18.6			94.2			111.9			112.9			142.8			186.7
Amortization of capitalized interest		2.1			6.0			4.2			2.4			1.1			0.6
Distributions from 50% or less owned companies accounted for in accordance with the equity method		3.6			3.2			1.9			31.7			134.3			12.3
Less:
Capitalized interest		14.4			57.1			37.3			14.7			11.8			7.7
Noncontrolling interest in earnings from consolidated companies with no fixed charges		2.2			0.5			0.1			0.1			0.2			0.2
Total Earnings:	$	737.4		$	3,317.1		$	1,270.3		$	3,037.9		$	2,948.6		$	697.4
Fixed Charges:
Interest costs (excluding amortized interest)	$	0.8		$	25.9		$	63.8		$	89.3		$	124.7		$	194.9
Capitalized interest		14.4			57.1			37.3			14.7			11.8			7.7
Amortized capitalized debt expenses		(0.8	)		1.7			1.9			0.9			(0.7	)		(23.4	)
Estimate of interest in rent expense		2.3			9.5			8.9			8.0			7.0			7.5
Honored guarantees amount		1.9			—			—			—			—			—
Total Fixed Charges:	$	18.6		$	94.2		$	111.9		$	112.9		$	142.8		$	186.7
RATIO OF EARNINGS TO FIXED CHARGES		39.6	x		35.2	x		11.4	x		26.9	x		20.7	x		3.7	x