Form 52-109FT2 – Certification of Interim Filings during Transition Period
I, Kam Shah, Chief Executive Officer of Bontan Corporation Inc., certify that:
1. I have reviewed the interim filings (as this term is defined in Multilateral Instrument 52-109Certification of Disclosure in Issuers’ Annual and Interim Filings) of Bontan Corporation Inc. (the Issuer) for the interim period ended June 30, 2005;
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; and
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.
Date: August 24, 2005
“Kam Shah”
Kam Shah
Chief Executive Officer