EXHIBIT 31.2

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

I, Mary Sellers, Chief Financial Officer of Mammatech Corporation
certify that:

1.   I have reviewed this quarterly report Form 10-QSB of Mammatech Corporation;

2.   Based on my knowledge, this annual 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 quarterly report;

3.   Based on my knowledge, the financial statements, and other financial
     information included in this quarterly 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
     quarterly report;

4.   The registrant's other certifying officer and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Exchange Act Rules 13a-14(e) and 15d-14(e)) and internal control over
     financial reporting (as defined in Exchange Act Rules 13a-15(f) and
     15d-15(f)) 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 quarterly report is being prepared;

     b.   designed such internal control over financial reporting, or caused
          such internal control over financial reporting to be designed under my
          supervision, to provide reasonable assurance regarding the reliability
          of financial reporting and the preparation of financial statements for
          external purposes in accordance with generally accepted accounting
          principles;

     c.   evaluated the effectiveness of the registrant's disclosure controls
          and procedures as of a date within 90 days prior to the filing date of
          this quarterly report (the "Evaluation Date") and

     d.   presented in this quarterly report our conclusions about the
          effectiveness of the disclosure controls and procedures based on our
          evaluation as of the Evaluation Date;

5.   The registrant's other certifying officer 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 registrant's board of
     directors (or persons performing the equivalent functions):

     a.      all significant deficiencies and material weaknesses in the design
             or operation of internal controls which could adversely affect the
             registrant's ability to record, process, summarize and report
             financial data and have identified for the registrant's auditors
             any material weaknesses in internal controls; and

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

6.   The registrant's other certifying officer and I have indicated in this
     quarterly report whether there were significant changes in internal
     controls or in other factors that could significantly affect internal
     controls subsequent to the date of our most recent evaluation, including
     any corrective actions with regard to significant deficiencies and material
     weaknesses.

Date: July 16, 2004
                                            /s/  Mary Bailey Sellers
                                            ----------------------------------
                                                 Mary Bailey Sellers
                                                 Chief Financial Officer and
                                                 Executive Vice President