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<link:definition>1001 - Document - Document And Entity Information</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</link:definition>
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<link:definition>1003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS [Parenthetical]</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF INCOME</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
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<link:definition>1006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)</link:definition>
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<link:definition>1007 - Disclosure - Principal activity</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>1008 - Disclosure - Accounting policies</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:roleType roleURI="http://www.cwco.com/role/SegmentInformation" id="SegmentInformation">
<link:definition>1009 - Disclosure - Segment information</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>1010 - Disclosure - Earnings per share</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/InvestmentInOcBvi" id="InvestmentInOcBvi">
<link:definition>1011 - Disclosure - Investment in OC-BVI</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/NscAndAdrProjectDevelopment" id="NscAndAdrProjectDevelopment">
<link:definition>1012 - Disclosure - NSC and AdR Project Development</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:roleType roleURI="http://www.cwco.com/role/FairValueMeasurements" id="FairValueMeasurements">
<link:definition>1013 - Disclosure - Fair value measurements</link:definition>
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<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:roleType roleURI="http://www.cwco.com/role/Contingencies" id="Contingencies">
<link:definition>1014 - Disclosure - Contingencies</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/ImpactOfRecentAccountingStandards" id="ImpactOfRecentAccountingStandards">
<link:definition>1015 - Disclosure - Impact of recent accounting standards</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:roleType roleURI="http://www.cwco.com/role/SubsequentEvents" id="SubsequentEvents">
<link:definition>1016 - Disclosure - Subsequent events</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:definition>1017 - Disclosure - Accounting policies (Policies)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<link:roleType roleURI="http://www.cwco.com/role/AccountingPoliciesTables" id="AccountingPoliciesTables">
<link:definition>1018 - Disclosure - Accounting policies (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/SegmentInformationTables" id="SegmentInformationTables">
<link:definition>1019 - Disclosure - Segment information (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/EarningsPerShareTables" id="EarningsPerShareTables">
<link:definition>1020 - Disclosure - Earnings per share (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/InvestmentInOcBviTables" id="InvestmentInOcBviTables">
<link:definition>1021 - Disclosure - Investment in OC-BVI (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/FairValueMeasurementsTables" id="FairValueMeasurementsTables">
<link:definition>1022 - Disclosure - Fair value measurements (Tables)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/AccountingPoliciesDetails" id="AccountingPoliciesDetails">
<link:definition>1023 - Disclosure - Accounting policies (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/AccountingPoliciesDetailsTextual" id="AccountingPoliciesDetailsTextual">
<link:definition>1024 - Disclosure - Accounting policies (Details Textual)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/SegmentInformationDetails" id="SegmentInformationDetails">
<link:definition>1025 - Disclosure - Segment information (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/SegmentInformationDetailsTextual" id="SegmentInformationDetailsTextual">
<link:definition>1026 - Disclosure - Segment information (Details Textual)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/EarningsPerShareDetails" id="EarningsPerShareDetails">
<link:definition>1027 - Disclosure - Earnings per share (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/InvestmentInOcBviDetails" id="InvestmentInOcBviDetails">
<link:definition>1028 - Disclosure - Investment in OC-BVI (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/InvestmentInOcBviDetailsTextual" id="InvestmentInOcBviDetailsTextual">
<link:definition>1029 - Disclosure - Investment in OC-BVI (Details Textual)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/NscAndAdrProjectDevelopmentDetailsTextual" id="NscAndAdrProjectDevelopmentDetailsTextual">
<link:definition>1030 - Disclosure - NSC and AdR Project Development (Details Textual)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/FairValueMeasurementsDetails" id="FairValueMeasurementsDetails">
<link:definition>1031 - Disclosure - Fair value measurements (Details)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/FairValueMeasurementsDetails1" id="FairValueMeasurementsDetails1">
<link:definition>1032 - Disclosure - Fair value measurements (Details 1)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/FairValueMeasurementsDetailsTextual" id="FairValueMeasurementsDetailsTextual">
<link:definition>1033 - Disclosure - Fair value measurements (Details Textual)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/ContingenciesDetailsTextual" id="ContingenciesDetailsTextual">
<link:definition>1034 - Disclosure - Contingencies (Details Textual)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/ImpactOfRecentAccountingStandardsDetailsTextual" id="ImpactOfRecentAccountingStandardsDetailsTextual">
<link:definition>1035 - Disclosure - Impact of recent accounting standards (Details Textual)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
</link:roleType>
<link:roleType roleURI="http://www.cwco.com/role/SubsequentEventsDetailsTextual" id="SubsequentEventsDetailsTextual">
<link:definition>1036 - Disclosure - Subsequent events (Details Textual)</link:definition>
<link:usedOn>link:presentationLink</link:usedOn>
<link:usedOn>link:definitionLink</link:usedOn>
<link:usedOn>link:calculationLink</link:usedOn>
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<element name="RefurbishProjectMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_RefurbishProjectMember" substitutionGroup="xbrli:item" />
<element name="AgreementAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_AgreementAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="AgreementDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_AgreementDomain" substitutionGroup="xbrli:item" />
<element name="ThousandNineHundredAndNinetyAgreementMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_ThousandNineHundredAndNinetyAgreementMember" substitutionGroup="xbrli:item" />
<element name="BarBayAgreementMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_BarBayAgreementMember" substitutionGroup="xbrli:item" />
<element name="PlantAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_PlantAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="PlantDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_PlantDomain" substitutionGroup="xbrli:item" />
<element name="BaughersBayPlantMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_BaughersBayPlantMember" substitutionGroup="xbrli:item" />
<element name="EquityMethodInvestmentsVotingSharesPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="cwco_EquityMethodInvestmentsVotingSharesPercentage" substitutionGroup="xbrli:item" />
<element name="EquityMethodInvestmentInterestInProfitPercentage" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="cwco_EquityMethodInvestmentInterestInProfitPercentage" substitutionGroup="xbrli:item" />
<element name="DeliveryTermsVolumeOfWaterPerDay" type="num:volumeItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="cwco_DeliveryTermsVolumeOfWaterPerDay" substitutionGroup="xbrli:item" />
<element name="PurchasePriceAgreedForPlantUnderAgreement" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="cwco_PurchasePriceAgreedForPlantUnderAgreement" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="CostIncurredToExpandPlantCapacity" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_CostIncurredToExpandPlantCapacity" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="PlantCapacity" type="num:volumeItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="cwco_PlantCapacity" substitutionGroup="xbrli:item" />
<element name="PlantValue" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="cwco_PlantValue" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ProceedsDamageFromBviGovernment" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_ProceedsDamageFromBviGovernment" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="PotentialProceedsToBeReceivedFromLitigationSettlement" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="cwco_PotentialProceedsToBeReceivedFromLitigationSettlement" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="ProfitSharingIncomeFromEquityMethodInvestments" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_ProfitSharingIncomeFromEquityMethodInvestments" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="OptionAgreementMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_OptionAgreementMember" substitutionGroup="xbrli:item" />
<element name="TypeOfPhasesAxis" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_TypeOfPhasesAxis" substitutionGroup="xbrldt:dimensionItem" />
<element name="TypeOfPhasesDomain" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_TypeOfPhasesDomain" substitutionGroup="xbrli:item" />
<element name="FirstPhaseMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_FirstPhaseMember" substitutionGroup="xbrli:item" />
<element name="SecondPhaseMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_SecondPhaseMember" substitutionGroup="xbrli:item" />
<element name="AguasDeRosaritoSapiDeCvMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_AguasDeRosaritoSapiDeCvMember" substitutionGroup="xbrli:item" />
<element name="TotalPercentageOfOwnershipInterestInAcquiredCompany" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="cwco_TotalPercentageOfOwnershipInterestInAcquiredCompany" substitutionGroup="xbrli:item" />
<element name="SeawaterReverseOsmosisDesalinationPlantPerDayProcessingCapacity" type="num:volumeItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_SeawaterReverseOsmosisDesalinationPlantPerDayProcessingCapacity" substitutionGroup="xbrli:item" />
<element name="RepaymentOfInterCompanyLoanPayable" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_RepaymentOfInterCompanyLoanPayable" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="LeaseTerm" type="xbrli:durationItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_LeaseTerm" substitutionGroup="xbrli:item" />
<element name="TotalVotingInterestPercentageAfterConversionOfLoan" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="cwco_TotalVotingInterestPercentageAfterConversionOfLoan" substitutionGroup="xbrli:item" />
<element name="PercentageOfVotingInterestAcquiredThroughOptionAgreement" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="cwco_PercentageOfVotingInterestAcquiredThroughOptionAgreement" substitutionGroup="xbrli:item" />
<element name="PaymentsForOptionExercised" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_PaymentsForOptionExercised" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="PaymentsToEnterOptionAgreement" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_PaymentsToEnterOptionAgreement" substitutionGroup="xbrli:item" xbrli:balance="credit" />
<element name="CounterGuarantyFixedAmount" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_CounterGuarantyFixedAmount" substitutionGroup="xbrli:item" xbrli:balance="debit" />
<element name="SubscriptionAgreementDescription" type="xbrli:stringItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_SubscriptionAgreementDescription" substitutionGroup="xbrli:item" />
<element name="OptionAgreementExpirationDate" type="xbrli:dateItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_OptionAgreementExpirationDate" substitutionGroup="xbrli:item" />
<element name="NSCAguaMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_NSCAguaMember" substitutionGroup="xbrli:item" />
<element name="CommitmentsAndContingenciesTable" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_CommitmentsAndContingenciesTable" substitutionGroup="xbrldt:hypercubeItem" />
<element name="CwBelizeMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_CwBelizeMember" substitutionGroup="xbrli:item" />
<element name="CwBaliMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_CwBaliMember" substitutionGroup="xbrli:item" />
<element name="CompensatoryDamagesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_CompensatoryDamagesMember" substitutionGroup="xbrli:item" />
<element name="PunitiveDamagesMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_PunitiveDamagesMember" substitutionGroup="xbrli:item" />
<element name="ThreePlantsMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_ThreePlantsMember" substitutionGroup="xbrli:item" />
<element name="CommitmentsAndContingenciesLineItems" type="xbrli:stringItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_CommitmentsAndContingenciesLineItems" substitutionGroup="xbrli:item" />
<element name="CaymanWaterRetailOperationsPercentageOfGrossProfit" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_CaymanWaterRetailOperationsPercentageOfGrossProfit" substitutionGroup="xbrli:item" />
<element name="CaymanWaterRetailOperationsPercentageOfRevenue" type="num:percentItemType" abstract="false" xbrli:periodType="duration" nillable="true" id="cwco_CaymanWaterRetailOperationsPercentageOfRevenue" substitutionGroup="xbrli:item" />
<element name="PerGallonPriceOfWaterSuppliedPercent" type="num:percentItemType" abstract="false" xbrli:periodType="instant" nillable="true" id="cwco_PerGallonPriceOfWaterSuppliedPercent" substitutionGroup="xbrli:item" />
<element name="WSCMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_WSCMember" substitutionGroup="xbrli:item" />
<element name="ShareholderMember" type="nonnum:domainItemType" abstract="true" xbrli:periodType="duration" nillable="true" id="cwco_ShareholderMember" substitutionGroup="xbrli:item" />
</schema>
