1.
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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 November 30, 2007;
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2.
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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;
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3.
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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;
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4.
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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:
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|
(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
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|
(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
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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.
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/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 November 30, 2007;
|
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 |
OfficeDirector
of Finance and Acting Chief Financial
Officer
|