CERTIFICATIONS

| I, Joseph Fuda, Chief Executive Officer,    certify that: |
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| 1.                                                        |   | I have reviewed this annual report on Form    20-F of Micromem Technologies Inc. |
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| 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 annual report.       3. 
Based on my knowledge, the financial    statements, and other financial information included in this annual 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 annual 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-15(e)    and 15d-15(e))    and internal control over financial reporting (as defined in Exchange Act    Rules 13a-15(f) and 15d-15(f)) 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 annual 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     and presented in this annual    report our conclusions about the effectiveness of the disclosure controls    and procedures, during the period covered by    this annual report based on such    evaluation; and        d.
disclosed in this annual report any    change in the registrant's internal control over financial reporting that    occurred during the period covered by this 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    ofinternal control over    financial reporting,    to the registrant's auditors and the audit committee of the 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 controls over    financial reporting which are    reasonably likely to adversely affect the registrant's ability to    record, process, summarize and report financial data;        b.
any fraud,    whether or not material, that involves management or other employees who    have a significant role in the registrant's internal controls.    
Date: May 28, 2004.
 /s/ Joseph Fuda     Joseph Fuda    Chief Executive Officer |