EXHIBIT 99.1


                        CERTIFICATION OF PERIODIC REPORT


I, Michael J. Smith, Principal Executive Officer and Principal Financial Officer
of DTA Holding Aktiengesellschaft (the "Company"), certify pursuant to Section
906 of the SARBANES-OXLEY ACT OF 2002, 18 U.S.C. Section 1350, that:

     (1)  the Annual Report on Form 20-F of the Company for the year ended
          December 31, 2002 (the "Report") fully complies with the requirements
          of Section 13(a) of the SECURITIES EXCHANGE ACT OF 1934 (15 U.S.C. 78m
          or 78o(d)); and

     (2)  the information contained in the Report fairly presents, in all
          material respects, the financial condition and results of operations
          of the Company.

Dated: July 15, 2003


                                        /s/ Michael J. Smith
                                        -----------------------------------
                                        Michael J. Smith
                                        Principal Executive Officer and
                                        Principal Financial Officer


                          _____________________________

A signed original of this written statement required by Section 906 has been
provided to DTA Holding Aktiengesellschaft and will be retained by DTA Holding
Aktiengesellschaft and furnished to the Securities and Exchange Commission or
its staff upon request.