StageZero Life Sciences Ltd. — Regulatory Filings 2023

Apr 1, 2023

	theAIF(together,the"annualfilings")of StageZero Life Sciences Ltd.(the"issuer")for thefinancialyear endedDecember 31, 2022.
2.	**No misrepresentations:**Basedon myknowledge,havingexercised reasonable diligence,the
	annualfilingsdo notcontainanyuntruestatementof amaterial factoromittostateamaterial
	factrequiredto bestatedorthatisnecessarytomakeastatementnotmisleadinginlightof the
	circumstances under whichit wasmade,for theperiodcoveredby theannualfilings.
3.	**Fair presentation:**Basedon myknowledge, havingexercisedreasonablediligence,theannual
	financialstatements togetherwiththeotherfinancialinformationincludedin theannualfilings
	fairlypresentin allmaterialrespectsthefinancial condition, financial performanceandcash
	flowsof theissuer,as of thedateof and for theperiods presentedin theannualfilings.
4.	**Responsibility:**Theissuer's othercertifyingofficer(s)and I areresponsibleforestablishingand
	maintainingdisclosure controlsandprocedures (DC&P)andinternalcontrol overfinancial
	reporting(ICFR),asthose termsaredefinedinNationalInstrument52-109_Certification of_
	_Disclosure in Issuers ' Annual and Interim Filings,_for theissuer.
5.	**Design:**Subjectto thelimitations,ifany, describedinparagraphs5.2 and5.3,theissuer's other
	certifyingofficer(s)and Ihave,as at thefinancialyearend
	(a)designed DC&P,orcausedit to bedesigned underoursupervision,toprovide reasonable
	assurance that
	(i)materialinformationrelatingto theissuerismade knownto us byothers,
	particularly duringtheperiodinwhichtheannual filingsarebeing prepared;and
	(ii)information requiredto bedisclosedby theissuerin itsannualfilings,interim
	filingsorother reportsfiledorsubmittedby itunder securitieslegislationis
	recorded,processed,summarizedandreported withinthetime periods specified
	insecuritieslegislation;and
	(b)designed ICFR,orcausedit to bedesigned underoursupervision,toprovide reasonable
	assurance regardingthereliabilityoffinancialreportingand thepreparationoffinancial
	statementsforexternal purposesinaccordance withtheissuer's GAAP.
5.1	**Control framework:**Thecontrol frameworktheissuer's othercertifyingofficer(s)and Iusedto
	designtheissuer's ICFRisInternalControl-Integrated Framework issuedby theCommitteeof
	SponsoringOrganizationsof theTreadway Commission (COSO)(2013).