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Exhibit 31.1

                            RULE 13a-14 CERTIFICATION

    I, Dennis J Tietz, certify that:

    1.  I have reviewed this quarterly report on Form 10-Q of The Cronos Group
(the "Registrant");

    2.  Based on my knowledge, this quarterly 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 and 15d-14) for the Registrant and we 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; and

             (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

             (c) disclosed in this report any change in the Registrant's
           internal control over financial reporting that occurred during the
           Registrant's most recent fiscal quarter (the Registrant's fourth
           fiscal quarter in the case of an 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 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 function):

             (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: November 12, 2003

/s/ DENNIS J TIETZ
Dennis J Tietz
Chief Executive Officer

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