EXHIBIT 12.1


                           CERTIFICATION PURSUANT TO
                                  SECTION 302
                        THE SARBANES-OXLEY ACT OF 2002






I, Federico Sada Gonzalez, certify that:

          1. I have reviewed this annual report on Form 20-F of Vitro, S.A. de
C.V.;

          2. Based on my knowledge, this report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to
make the statements made, in light of the circumstances under which such
statements were made, not misleading with respect to the period covered by
this report;

          3. Based on my knowledge, the financial statements, and other
financial information included in this report, fairly present in all material
respects the financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this report;

          4. The registrant's other certifying officers and I are responsible
for establishing and maintaining disclosure controls and procedures (as
defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and
have:

          (a) designed such disclosure controls and procedures, or caused such
     disclosure controls and procedures to be designed under our supervision,
     to ensure that material information relating to the registrant, including
     its consolidated subsidiaries, is made known to us by others within those
     entities, particularly during the period in which this report is being
     prepared;

          (b) evaluated the effectiveness of the registrant's disclosure
     controls and procedures and presented in this report our conclusions
     about the effectiveness of the disclosure controls and procedures, as of
     the end of the period covered by this report based on such evaluation;
     and


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          (c) disclosed in this report any change in the registrant's internal
     control over financial reporting that occurred during the period covered
     by the annual report that has materially affected, or is reasonably
     likely to materially affect, the registrant's internal control over
     financial reporting.

          5. The registrant's other certifying officers and I have disclosed,
based on our most recent evaluation of internal control over financial
reporting, to the registrant's auditors and the audit committee of the
registrant's board of directors:

          (a) all significant deficiencies and material weaknesses in the
     design or operation of internal control over financial reporting which
     are reasonably likely to adversely affect the registrant's ability to
     record, process, summarize and report financial information; and

          (b) any fraud, whether or not material, that involves management or
     other employees who have a significant role in the registrant's internal
     control over financial reporting.



 Date: June 30, 2004                             /s/ Federico Sada Gonzalez
                                               --------------------------------
                                                Name:    Federico Sada Gonzalez
                                                Title:   President and Chief
                                                         Executive Officer