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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                     FORM 15

CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF
THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER
SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.

                        Commission File Number: 001-14568

                                   IPSCO INC.
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             (Exact name of registrant as specified in its charter)

                         650 Warrenville Road, Suite 500
                              Lisle, Illinois 60532
                            Telephone: (630) 810-4800
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    (Address, including zip code, and telephone number, including area code,
                  of registrant's principal executive offices)

                                  Common Shares
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            (Title of each class of securities covered by this Form)

                                      None
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       (Titles of all other classes of securities for which a duty to file
                  reports under Section 13(a) or 15(d) remains)

Please place an X in the box(es) to designate the appropriate rule provision(s)
relied upon to terminate or suspend the duty to file reports:

          Rule 12g-4(a)(l)(i)   [X]              Rule 12h-3(b)(l)(i)   [X]
          Rule 12g-4(a)(l)(ii)  [ ]              Rule 12h-3(b)(1)(ii)  [ ]
          Rule 12g-4(a)(2)(i)   [ ]              Rule 12h-3(b)(2)(i)   [ ]
          Rule 12g-4(a)(2)(ii)  [ ]              Rule 12h-3(b)(2)(ii)  [ ]
                                                 Rule 15d-6            [ ]

Approximate number of holders of record as of the certification or notice
date: 1

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     Pursuant to the requirements of the Securities Exchange Act of 1934, IPSCO
Inc. has caused this Certification and Notice to be signed on its behalf by the
undersigned duly authorized person.

Date: July 20, 2007

                                                    By: /s/ Michele Klebuc-Simes
                                                        ------------------------
                                                    Name:  Michele Klebuc-Simes
                                                    Title: General Counsel