Potash Corporation of Saskatchewan (POT) 10-Q/A 2005 Q2 Quarterly report (amended)

Exhibit 11

POTASH CORPORATION OF SASKATCHEWAN INC.

COMPUTATION OF PER SHARE EARNINGS⁽¹⁾

FOR THE SIX MONTHS ENDED JUNE 30

		2005			2004
A	Net income as reported, Canadian GAAP ($ millions)	$	295.5		$	123.3
B	Items adjusting net income(2) ($ millions)	$	(8.8	)	$	2.2
C	Net income, US GAAP(2) ($ millions)	$	286.7		$	125.5
D	Weighted average number of shares outstanding		110,365,000			106,866,000
E	Net additional shares issuable for diluted earnings per share calculation		3,041,000			1,364,000
	CANADIAN GAAP
	Basic earnings per share (A/D)	$	2.68		$	1.15
	Diluted earnings per share (A/(D+E))	$	2.61		$	1.14
	UNITED STATES GAAP(2)
	Basic earnings per share (C/D)	$	2.60		$	1.17
	Diluted earnings per share (C/(D+E))	$	2.53		$	1.16

⁽¹⁾   In the third quarter of 2004, the Board of Directors of PCS approved a split of the company’s outstanding common shares on a two-for-one basis in the form of a stock dividend. All comparative share and per-share data have been retroactively adjusted to reflect the stock split.

⁽²⁾   US GAAP figures restated, as described and quantified in Note 17 to the unaudited interim condensed consolidated financial statements included in this Amendment.