<DOCUMENT>
<TYPE>EX-13
<SEQUENCE>7
<FILENAME>e32100ex13.txt
<DESCRIPTION>ANNUAL CERTIFICATIONS
<TEXT>
                                                                      Exhibit 13

                              Annual Certifications

            Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

      Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a)
and (b) of Section 1350, Chapter 63 of Title 18, United States Code), each of
the undersigned officers of Grupo Simec, S.A.B. de C.V. (the "Company"), does
hereby certify, to such officer's knowledge, that:

      The Annual Report on Form 20-F for the year ended December 31, 2007 of the
Company fully complies with the requirements of Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 and the information contained in the Form 20-F
fairly presents, in all material respects, the financial condition and results
of operations of the Company.

Dated: June 30, 2008

                                                   /s/ Luis Garcia Limon
                                                   -----------------------------
                                                   Luis Garcia Limon
                                                   Chief Executive Officer

                                                   /s/ Jose Flores Flores
                                                   -----------------------------
                                                   Jose Flores Flores
                                                   Chief Financial Officer


</TEXT>
</DOCUMENT>
