1.
|
I have reviewed the interim
filings (as this term is defined in Multilateral Instrument 52-109
Certification of Disclosure in Issuers’ Annual and Interim Filings) of
Lorus, for the interim period ending February 29,
2008;
|
2.
|
Based on my knowledge, the interim
filings do not contain any untrue statement of a material fact or
omit to state a
material fact required to be stated or that is necessary to make a
statement not misleading in light of the circumstances under which it was
made, with respect to the period covered by the interim
filings;
|
3.
|
Based on my knowledge, the interim
financial statements together with the other financial information
included in the interim filings fairly present in all material respects
the financial condition, results of operations and cash flows of the
issuer, as of the date and for the periods presented in the interim
filings;
|
4.
|
The issuer’s other certifying
officers and I are responsible for establishing and maintaining disclosure
controls and procedures and internal control over financial reporting for
the issuer, and we
have:
|
(a)
|
designed such disclosure controls
and procedures, or caused them to be designed under our supervision, to
provide reasonable assurance that material information relating to the
issuer, including its consolidated subsidiaries, is made known to us by
others within those entities, particularly during the period in
which the interim filings are being prepared;
and
|
(b)
|
designed such internal control
over financial reporting, or caused it to be designed under our
supervision, to
provide reasonable assurance regarding the reliability of financial
reporting and the preparation of financial statements for external
purposes in accordance with the issuer’s GAAP;
and
|
5.
|
I have caused the issuer to
disclose in the interim MD&A any change in the issuer’s internal
control over financial reporting that
occurred during the issuer’s most recent interim period that has
materially affected, or is
reasonably likely to materially affect, the issuer’s internal control over
financial
reporting.
|
/s/ Aiping
Young
|
Aiping
Young
|
President and Chief Executive
Officer
|
1.
|
I have reviewed the interim
filings (as this term is defined in Multilateral Instrument 52-109
Certification of Disclosure in Issuers’ Annual and Interim Filings) of
Lorus, for the interim period ending February 29,
2008;
|
2.
|
Based on my knowledge, the interim
filings do not contain any untrue statement of a material fact or
omit to state a
material fact required to be stated or that is necessary to make a
statement not misleading in light of the circumstances under which it was
made, with respect to the period covered by the interim
filings;
|
3.
|
Based on my knowledge, the interim
financial statements together with the other financial information
included in the interim filings fairly present in all material respects
the financial condition, results of operations and cash flows of the
issuer, as of the date and for the periods presented in the interim
filings;
|
4.
|
The issuer’s other certifying
officers and I are responsible for establishing and maintaining disclosure
controls and procedures and internal control over financial reporting for
the issuer, and we
have:
|
(a)
|
designed such disclosure controls
and procedures, or caused them to be designed under our supervision, to
provide reasonable assurance that material information relating to the
issuer, including its consolidated subsidiaries, is made known to us by
others within those entities, particularly during the period in
which the interim filings are being prepared;
and
|
(b)
|
designed such internal control
over financial reporting, or caused it to be designed under our
supervision, to
provide reasonable assurance regarding the reliability of financial
reporting and the preparation of financial statements for external
purposes in accordance with the issuer’s GAAP;
and
|
5.
|
I have caused the issuer to
disclose in the interim MD&A any change in the issuer’s internal
control over financial reporting that
occurred during the issuer’s most recent interim period that has materially affected, or is
reasonably likely to materially affect, the issuer’s internal control over
financial
reporting.
|
/s/ Elizabeth
Williams
|
Elizabeth
Williams
|
Director of Finance and Acting
Chief Financial
Officer
|