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<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM 8-K</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>CURRENT REPORT<BR>
Pursuant to Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934</B>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">May&nbsp;2, 2007<BR>
(Date of earliest event reported)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 20pt; margin-top: 12pt"><B>Potash Corporation of Saskatchewan Inc.</B>
</DIV>

<DIV align="center" style="font-size: 8pt">(Exact name of registrant as specified in its charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 8pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
    <TD width="31%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="31%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="31%">&nbsp;</TD>
</TR>
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<TR valign="bottom">
    <TD align="center" valign="top"><FONT style="font-size:10pt"><B>Canada</B></FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="font-size:10pt"><B>1-1035</B></FONT>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><FONT style="font-size:10pt"><B>Not Applicable</B></FONT></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(State or other jurisdiction of incorporation)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(Commission File Number)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(IRS Employer Identification No.)</TD>
</TR>
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</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>122 &#150; 1<SUP style="font-size: 85%; vertical-align: text-top">st</SUP> Avenue South<BR>
Saskatoon, Saskatchewan, Canada S7K 7G3</B></DIV>

<DIV align="center" style="font-size: 8pt">(Address of principal executive offices, including zip code)</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>306 / 933-8500</B></DIV>

<DIV align="center" style="font-size: 8pt">(Registrant&#146;s telephone number, including area code)</DIV>



<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Not Applicable</B>
</DIV>

<DIV align="center" style="font-size: 8pt">(Former name or former address, if changed since last report)</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><DIV style="width: 100%; border-bottom: 1px solid #000000; font-size: 1px">&nbsp;</DIV>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">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 (see
General Instruction A.2.):
</DIV>


<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Pre-commencement communications pursuant to Rule&nbsp;14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left"><FONT face="Wingdings">&#111;</FONT></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Pre-commencement communications pursuant to Rule&nbsp;13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</TD>
</TR>

</TABLE>
</DIV>

<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>





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<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8.01</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Other Events</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On May&nbsp;2, 2007, Potash Corporation of Saskatchewan Inc. (the &#147;Corporation&#148;) announced that its
Board of Directors has declared a three-for-one stock split (the &#147;Stock Split&#148;) of the
Corporation&#146;s outstanding common shares. The three-for-one stock split will take the form of a
stock dividend, which will be payable on May&nbsp;29, 2007 to common shareholders of record at the close
of business on May&nbsp;22, 2007. A copy of the Corporation&#146;s news release announcing the stock split
is attached hereto as Exhibit&nbsp;99.1.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to Rule 416(b) of the Securities Act of 1933, as amended (the &#147;Securities Act&#148;), the
Corporation&#146;s Registration Statements on Form S-8 (File Nos. 33-37855, 333-19215, 333-53531,
333-75742, 333-75744, 333-113945, 333-124677) are hereby amended to provide that the number of
common shares registered thereunder are deemed to cover an indeterminate number of additional
common shares that may result from subdivisions, consolidations or reclassifications of the
Corporation&#146;s common shares, the payment of share dividends by the Corporation, or other relevant
changes in the capital of the Corporation, including the Stock Split.
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9.01</B>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Financial Statements and Exhibits</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="10%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="87%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Exhibit Number</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Exhibit Description</B></TD>
</TR>

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<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">99.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">News release, dated May&nbsp;2, 2007, issued by Potash Corporation of Saskatchewan Inc.</TD>
</TR>
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</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->&nbsp;<!-- /Folio -->
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<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><U><B>SIGNATURE</B></U>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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.
</DIV>


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left"><B>POTASH CORPORATION OF<BR>SASKATCHEWAN INC.</B><BR><BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Joseph Podwika
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top">Name:&nbsp;&nbsp;</TD>
    <TD align="left">Joseph Podwika&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top">Title:&nbsp;&nbsp;</TD>
    <TD align="left">Senior Vice President, General Counsel<BR>and Secretary&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt">Dated: May&nbsp;2, 2007
</DIV>


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<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Index to Exhibits</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="10%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="87%">&nbsp;</TD>
</TR>
<TR style="font-size: 10pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Exhibit Number</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Exhibit Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">99.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">News release, dated May&nbsp;2, 2007, issued by Potash Corporation of Saskatchewan Inc.</TD>
</TR>
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</TABLE>
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e8vk
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
May 2, 2007
(Date of earliest event reported)
Potash Corporation of Saskatchewan Inc.
(Exact name of registrant as specified in its charter)
Canada
1-1035
Not Applicable
(State or other jurisdiction of incorporation)
(Commission File Number)
(IRS Employer Identification No.)
122 – 1
st
Avenue South
Saskatoon, Saskatchewan, Canada S7K 7G3
(Address of principal executive offices, including zip code)
306 / 933-8500
(Registrant's telephone number, including area code)
Not Applicable
(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 (see
General Instruction A.2.):
o
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o
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 May 2, 2007, Potash Corporation of Saskatchewan Inc. (the "Corporation") announced that its
Board of Directors has declared a three-for-one stock split (the "Stock Split") of the
Corporation's outstanding common shares. The three-for-one stock split will take the form of a
stock dividend, which will be payable on May 29, 2007 to common shareholders of record at the close
of business on May 22, 2007. A copy of the Corporation's news release announcing the stock split
is attached hereto as Exhibit 99.1.
Pursuant to Rule 416(b) of the Securities Act of 1933, as amended (the "Securities Act"), the
Corporation's Registration Statements on Form S-8 (File Nos. 33-37855, 333-19215, 333-53531,
333-75742, 333-75744, 333-113945, 333-124677) are hereby amended to provide that the number of
common shares registered thereunder are deemed to cover an indeterminate number of additional
common shares that may result from subdivisions, consolidations or reclassifications of the
Corporation's common shares, the payment of share dividends by the Corporation, or other relevant
changes in the capital of the Corporation, including the Stock Split.
Item 9.01
Financial Statements and Exhibits
Exhibit Number
Exhibit Description
99.1
News release, dated May 2, 2007, issued by Potash Corporation of Saskatchewan Inc.
SIGNATURE
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.
POTASH CORPORATION OF
SASKATCHEWAN INC.
By:
/s/ Joseph Podwika
Name:
Joseph Podwika
Title:
Senior Vice President, General Counsel
and Secretary
Dated: May 2, 2007
Index to Exhibits
Exhibit Number
Exhibit Description
99.1
News release, dated May 2, 2007, issued by Potash Corporation of Saskatchewan Inc.