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<!--REG30 V1.0 (16-10-2025)-->
<xbrli:xbrl xmlns:in-capmkt="http://www.sebi.gov.in/xbrl/2025-08-31/in-capmkt" xmlns:in-capmkt-ent="http://www.sebi.gov.in/xbrl/Regulation_30_Restructuring/2025-08-31/in-capmkt/in-capmkt-ent" xmlns:in-capmkt-roles="http://www.sebi.gov.in/xbrl/Regulation_30_Restructuring/2025-08-31/in-capmkt-roles" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:net="http://www.xbrl.org/2009/role/net" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xl="http://www.xbrl.org/2003/XLink"><link:schemaRef xlink:type="simple" xlink:href="in-capmkt-ent-2025-08-31.xsd"/><xbrli:context id="OneI"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">524342</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-08-20</xbrli:instant></xbrli:period></xbrli:context><xbrli:context id="OneD"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">524342</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-20</xbrli:startDate><xbrli:endDate>2026-08-20</xbrli:endDate></xbrli:period></xbrli:context><xbrli:context id="I_FinancialYear1"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">524342</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-08-20</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-capmkt:TurnoverForLastThreeFinancialYearsAxis">in-capmkt:FinancialYear1Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context><xbrli:context id="I_FinancialYear2"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">524342</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-08-20</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-capmkt:TurnoverForLastThreeFinancialYearsAxis">in-capmkt:FinancialYear2Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context><xbrli:context id="I_FinancialYear3"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">524342</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:instant>2026-08-20</xbrli:instant></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-capmkt:TurnoverForLastThreeFinancialYearsAxis">in-capmkt:FinancialYear3Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context><xbrli:context id="D_FinancialYear1"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">524342</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-20</xbrli:startDate><xbrli:endDate>2026-08-20</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-capmkt:TurnoverForLastThreeFinancialYearsAxis">in-capmkt:FinancialYear1Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context><xbrli:context id="D_FinancialYear2"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">524342</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-20</xbrli:startDate><xbrli:endDate>2026-08-20</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-capmkt:TurnoverForLastThreeFinancialYearsAxis">in-capmkt:FinancialYear2Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context><xbrli:context id="D_FinancialYear3"><xbrli:entity><xbrli:identifier scheme="http://www.sebi.gov.in/in-capmkt/ScripCode">524342</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2026-08-20</xbrli:startDate><xbrli:endDate>2026-08-20</xbrli:endDate></xbrli:period><xbrli:scenario><xbrldi:explicitMember dimension="in-capmkt:TurnoverForLastThreeFinancialYearsAxis">in-capmkt:FinancialYear3Member</xbrldi:explicitMember></xbrli:scenario></xbrli:context><xbrli:unit id="INR"><xbrli:measure>iso4217:INR</xbrli:measure></xbrli:unit><xbrli:unit id="pure"><xbrli:measure>xbrli:pure</xbrli:measure></xbrli:unit><in-capmkt:ScripCode contextRef="OneI">524342</in-capmkt:ScripCode><in-capmkt:NameOfTheCompany contextRef="OneI">INDO BORAX &amp; CHEMICALS LIMITED</in-capmkt:NameOfTheCompany><in-capmkt:NSESymbol contextRef="OneI">INDOBORAX</in-capmkt:NSESymbol><in-capmkt:MSEISymbol contextRef="OneI">NA</in-capmkt:MSEISymbol><in-capmkt:ISIN contextRef="OneI">INE803D01021</in-capmkt:ISIN><in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneD">New</in-capmkt:TypeOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:TypeOfEventOfAnnouncementPertainingToRegulation30Restructuring contextRef="OneD">Acquisition (including agreement to acquire)</in-capmkt:TypeOfEventOfAnnouncementPertainingToRegulation30Restructuring><in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting contextRef="OneD">true</in-capmkt:WhetherEventOrInformationDisclosedIsAnOutcomeOfBoardMeeting><in-capmkt:DateOfBoardMeeting contextRef="OneI">2026-08-20</in-capmkt:DateOfBoardMeeting><in-capmkt:EndTimeOfBoardMeeting contextRef="OneD">11:30:00</in-capmkt:EndTimeOfBoardMeeting><in-capmkt:DateOfReport contextRef="OneI">2026-08-20</in-capmkt:DateOfReport><in-capmkt:NameOfAcquirer contextRef="OneI">INDO BORAX &amp; CHEMICALS LIMITED</in-capmkt:NameOfAcquirer><in-capmkt:RelationshipOfAcquirerWithTheListedEntity contextRef="OneD">Listed Entity (self)</in-capmkt:RelationshipOfAcquirerWithTheListedEntity><in-capmkt:NameOfTheTargetEntity contextRef="OneI">Kronox Lab Sciences Limited</in-capmkt:NameOfTheTargetEntity><in-capmkt:TurnoverOfTargetEntity contextRef="OneD" unitRef="INR" decimals="-5">1012200000</in-capmkt:TurnoverOfTargetEntity><in-capmkt:ProfitAfterTaxOfTargetEntity contextRef="OneD" unitRef="INR" decimals="-5">276600000</in-capmkt:ProfitAfterTaxOfTargetEntity><in-capmkt:NetWorthOfTargetEntity contextRef="OneD" unitRef="INR" decimals="-5">1161300000</in-capmkt:NetWorthOfTargetEntity><in-capmkt:WhetherTheAcquisitionWouldFallWithinRelatedPartyTransactions contextRef="OneD">false</in-capmkt:WhetherTheAcquisitionWouldFallWithinRelatedPartyTransactions><in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesIncludingAssociateOrHoldingOrSubsidiaryOrDirectorOrKMPOrSMPAndItsRelativesHaveAnyInterestInTheEntityBeingAcquired contextRef="OneD">false</in-capmkt:WhetherThePromoterOrPromoterGroupOrGroupCompaniesIncludingAssociateOrHoldingOrSubsidiaryOrDirectorOrKMPOrSMPAndItsRelativesHaveAnyInterestInTheEntityBeingAcquired><in-capmkt:WhetherAcquisitionEventIsDoneAtArmsLength contextRef="OneD">false</in-capmkt:WhetherAcquisitionEventIsDoneAtArmsLength><in-capmkt:WhetherSpecialResolutionIsPassedOrProposedForAcquisitionEvent contextRef="OneD">false</in-capmkt:WhetherSpecialResolutionIsPassedOrProposedForAcquisitionEvent><in-capmkt:IndustryToWhichTheEntityBeingAcquiredBelongs contextRef="OneI">The Target Company is engaged in the business of manufacturing high purity specialty fine chemicals for diversified end-user industries.</in-capmkt:IndustryToWhichTheEntityBeingAcquiredBelongs><in-capmkt:ObjectsAndImpactOfAcquisitionIncludingButNotLimitedToDisclosureOfReasonsForAcquisitionOfTargetEntityIfItsBusinessIsOutsideTheMainLineOfBusinessOfTheListedEntity contextRef="OneI">The acquisition is intended with a long-term strategy of diversifying the Company’s portfolio while investing in sectors that demonstrate both stability and growth potential with further intention is to nurture and expand the Target Company’s business and maximizing value creation for all stakeholders.</in-capmkt:ObjectsAndImpactOfAcquisitionIncludingButNotLimitedToDisclosureOfReasonsForAcquisitionOfTargetEntityIfItsBusinessIsOutsideTheMainLineOfBusinessOfTheListedEntity><in-capmkt:WhetherAnyGovernmentalOrRegulatoryApprovalsRequiredForTheAcquisition contextRef="OneD">No</in-capmkt:WhetherAnyGovernmentalOrRegulatoryApprovalsRequiredForTheAcquisition><in-capmkt:WhetherTheAcquisitionTransactionWillBeInTranches contextRef="OneD">false</in-capmkt:WhetherTheAcquisitionTransactionWillBeInTranches><in-capmkt:IndicativeTimePeriodForCompletionOfTheAcquisition contextRef="OneI">Within 3 (three) months of public announcement. 

The Open Offer shall be completed in accordance with the provisions of the SAST Regulations.</in-capmkt:IndicativeTimePeriodForCompletionOfTheAcquisition><in-capmkt:NatureOfConsiderationForAcquisitionEvent contextRef="OneD">Cash</in-capmkt:NatureOfConsiderationForAcquisitionEvent><in-capmkt:AmountOfCashConsiderationForAcquisitionEvent contextRef="OneD" unitRef="INR" decimals="-5">2461200000</in-capmkt:AmountOfCashConsiderationForAcquisitionEvent><in-capmkt:DetailsOfConsiderationForAcquisitionEvent contextRef="OneI">Cash Consideration</in-capmkt:DetailsOfConsiderationForAcquisitionEvent><in-capmkt:CostOfAcquisitionOrThePriceAtWhichTheSharesAreAcquired contextRef="OneD" unitRef="INR" decimals="-5">1032200000</in-capmkt:CostOfAcquisitionOrThePriceAtWhichTheSharesAreAcquired><in-capmkt:ExistingPercentageOfShareholdingHeldByAcquirer contextRef="OneI" unitRef="pure" decimals="INF">0</in-capmkt:ExistingPercentageOfShareholdingHeldByAcquirer><in-capmkt:BriefBackgroundAboutTheEntityAcquiredInTermsOfProductsLineOfBusinessAcquired contextRef="OneI">The Target Company is engaged in the business of manufacturing high purity specialty fine chemicals for diversified end-user industries.</in-capmkt:BriefBackgroundAboutTheEntityAcquiredInTermsOfProductsLineOfBusinessAcquired><in-capmkt:DescriptionOfFinancialYear contextRef="I_FinancialYear1">2025-2026</in-capmkt:DescriptionOfFinancialYear><in-capmkt:Turnover contextRef="D_FinancialYear1" unitRef="INR" decimals="-5">1012200000</in-capmkt:Turnover><in-capmkt:DescriptionOfFinancialYear contextRef="I_FinancialYear2">2024-2025</in-capmkt:DescriptionOfFinancialYear><in-capmkt:Turnover contextRef="D_FinancialYear2" unitRef="INR" decimals="-5">1001900000</in-capmkt:Turnover><in-capmkt:DescriptionOfFinancialYear contextRef="I_FinancialYear3">2023-2024</in-capmkt:DescriptionOfFinancialYear><in-capmkt:Turnover contextRef="D_FinancialYear3" unitRef="INR" decimals="-5">898600000</in-capmkt:Turnover><in-capmkt:CountryInWhichTheAcquiredEntityHasPresence contextRef="OneI">India</in-capmkt:CountryInWhichTheAcquiredEntityHasPresence></xbrli:xbrl>
