<?xml version="1.0"?>
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:gen="http://xbrl.org/2008/generic" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:label="http://xbrl.org/2008/label" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <link:arcroleRef arcroleURI="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" xlink:href="http://www.xbrl.org/lrr/arcrole/esma-arcrole-2018-11-21.xsd#wider-narrower" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" xlink:type="simple" />
  <link:roleRef roleURI="http://www.esma.europa.eu/xbrl/role/all/ias_1_role-610000" xlink:type="simple" xlink:href="highco-2020-12-31.xsd#ias_1_role-610000" />
  <link:roleRef roleURI="http://www.esma.europa.eu/xbrl/role/cor/esef_role-999999" xlink:type="simple" xlink:href="http://www.esma.europa.eu/taxonomy/2019-03-27/esef_cor.xsd#esef_role-999999" />
  <link:roleRef roleURI="http://www.esef_all.com/role/Anchoring" xlink:type="simple" xlink:href="highco-2020-12-31.xsd#Anchoring" />
  <link:definitionLink xlink:role="http://www.esma.europa.eu/xbrl/role/all/ias_1_role-610000" xlink:type="extended">
    <link:loc xlink:label="loc_-610000_54_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_RestatedMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_34_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_PreviouslyStatedMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_17_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyAndCorrectionsOfPriorPeriodErrorsMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_15_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_FinancialEffectOfChangesInAccountingPolicyMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_18_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseDueToChangesInAccountingPolicyRequiredByIFRSsMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_59_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_StatementOfChangesInEquityAbstract" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_61_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_StatementOfChangesInEquityTable" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="10.0" xlink:from="loc_-610000_59_1" xlink:to="loc_-610000_61_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_8_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ComponentsOfEquityAxis" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="10.0" xlink:from="loc_-610000_61_1" xlink:to="loc_-610000_8_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_14_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_EquityMember" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="10.0" xlink:from="loc_-610000_8_1" xlink:to="loc_-610000_14_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_13_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10.0" xlink:from="loc_-610000_14_1" xlink:to="loc_-610000_13_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_28_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IssuedCapitalMember" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10.0" xlink:from="loc_-610000_13_1" xlink:to="loc_-610000_28_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_33_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherReservesMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_57_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_RevaluationSurplusMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_56_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_7_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ChangesInEquityAbstract" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_10_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ComprehensiveIncomeAbstract" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10.0" xlink:from="loc_-610000_7_1" xlink:to="loc_-610000_10_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_35_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ProfitLoss" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_60_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_StatementOfChangesInEquityLineItems" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="10.0" xlink:from="loc_-610000_60_1" xlink:to="loc_-610000_7_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_19_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseDueToVoluntaryChangesInAccountingPolicyMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_16_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_FinancialEffectOfCorrectionsOfAccountingErrorsMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_58_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_SharePremiumMember" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20.0" xlink:from="loc_-610000_13_1" xlink:to="loc_-610000_58_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_44_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfExchangeDifferencesOnTranslationMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_29_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NoncontrollingInterestsMember" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20.0" xlink:from="loc_-610000_14_1" xlink:to="loc_-610000_29_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20.0" xlink:from="loc_-610000_59_1" xlink:to="loc_-610000_60_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_31_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherComprehensiveIncome" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_27_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IssueOfEquity" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_12_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_Equity" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="20.0" xlink:from="loc_-610000_60_1" xlink:to="loc_-610000_12_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_62_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_TreasurySharesMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_38_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfCashFlowHedgesMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_9_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ComprehensiveIncome" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="30.0" xlink:from="loc_-610000_10_1" xlink:to="loc_-610000_9_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_11_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_DividendsPaid" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="30.0" xlink:from="loc_-610000_7_1" xlink:to="loc_-610000_11_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_48_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfGainsAndLossesOnHedgingInstrumentsThatHedgeInvestmentsInEquityInstrumentsMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_32_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherEquityInterestMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_22_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseThroughOtherContributionsByOwners" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_42_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfChangeInValueOfTimeValueOfOptionsMember" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="50.0" xlink:from="loc_-610000_13_1" xlink:to="loc_-610000_33_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_23_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseThroughOtherDistributionsToOwners" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_41_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfChangeInValueOfForwardElementsOfForwardContractsMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_55_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_RetainedEarningsMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_25_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="60.0" xlink:from="loc_-610000_7_1" xlink:to="loc_-610000_25_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_40_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfChangeInValueOfForeignCurrencyBasisSpreadsMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_26_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTreasuryShareTransactions" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="70.0" xlink:from="loc_-610000_7_1" xlink:to="loc_-610000_26_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_47_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfGainsAndLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_21_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_50_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfInsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedExcludedFromProfitOrLossThatWillBeReclassifiedToProfitOrLossMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_24_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="90.0" xlink:from="loc_-610000_7_1" xlink:to="loc_-610000_24_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_51_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfInsuranceFinanceIncomeExpensesFromInsuranceContractsIssuedExcludedFromProfitOrLossThatWillNotBeReclassifiedToProfitOrLossMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_2_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AmountRemovedFromReserveOfCashFlowHedgesAndIncludedInInitialCostOrOtherCarryingAmountOfNonfinancialAssetLiabilityOrFirmCommitmentForWhichFairValueHedgeAccountingIsApplied" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_45_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfFinanceIncomeExpensesFromReinsuranceContractsHeldExcludedFromProfitOrLossMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_5_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AmountRemovedFromReserveOfChangeInValueOfTimeValueOfOptionsAndIncludedInInitialCostOrOtherCarryingAmountOfNonfinancialAssetLiabilityOrFirmCommitmentForWhichFairValueHedgeAccountingIsApplied" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_49_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfGainsAndLossesOnRemeasuringAvailableforsaleFinancialAssetsMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_4_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AmountRemovedFromReserveOfChangeInValueOfForwardElementsOfForwardContractsAndIncludedInInitialCostOrOtherCarryingAmountOfNonfinancialAssetLiabilityOrFirmCommitmentForWhichFairValueHedgeAccountingIsApplied" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_53_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfSharebasedPaymentsMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_3_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AmountRemovedFromReserveOfChangeInValueOfForeignCurrencyBasisSpreadsAndIncludedInInitialCostOrOtherCarryingAmountOfNonfinancialAssetLiabilityOrFirmCommitmentForWhichFairValueHedgeAccountingIsApplied" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_52_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfRemeasurementsOfDefinedBenefitPlansMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_6_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ChangesInEquity" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_1_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AmountRecognisedInOtherComprehensiveIncomeAndAccumulatedInEquityRelatingToNoncurrentAssetsOrDisposalGroupsHeldForSaleMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_46_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfGainsAndLossesFromInvestmentsInEquityInstrumentsMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_39_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiabilityMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_36_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveForCatastropheMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_37_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveForEqualisationMember" xlink:type="locator" />
    <link:loc xlink:label="loc_-610000_43_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ReserveOfDiscretionaryParticipationFeaturesMember" xlink:type="locator" />
    <link:loc xlink:label="highco_ReservesAndRetainedEarningsMember" xlink:href="highco-2020-12-31.xsd#highco_ReservesAndRetainedEarningsMember" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="201" xlink:from="loc_-610000_33_1" xlink:to="highco_ReservesAndRetainedEarningsMember" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="201" xlink:from="loc_-610000_60_1" xlink:to="loc_-610000_9_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="201" xlink:from="loc_-610000_60_1" xlink:to="loc_-610000_11_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_20_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseThroughChangeInEquityOfSubsidiaries" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="201" xlink:from="loc_-610000_60_1" xlink:to="loc_-610000_24_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="201" xlink:from="loc_-610000_60_1" xlink:to="loc_-610000_25_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="201" xlink:from="loc_-610000_60_1" xlink:to="loc_-610000_26_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_-610000_30_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NumberOfSharesIssued" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="201" xlink:from="loc_-610000_60_1" xlink:to="loc_-610000_30_1" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.esma.europa.eu/xbrl/role/cor/esef_role-999999" xlink:type="extended">
    <link:loc xlink:label="LineItemsNotDimensionallyQualified" xlink:href="http://www.esma.europa.eu/taxonomy/2019-03-27/esef_cor.xsd#esef_cor_LineItemsNotDimensionallyQualified" xlink:type="locator" />
    <link:loc xlink:label="loc_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AddressOfRegisteredOfficeOfEntity" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_1" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_2" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AdjustmentsForDepreciationAndAmortisationExpense" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_2" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_3" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AdjustmentsForFairValueGainsLosses" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_3" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_4" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AdjustmentsForIncomeTaxExpense" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_4" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_5" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_5" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_6" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AdjustmentsForSharebasedPayments" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_6" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_7" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_AdjustmentsForUndistributedProfitsOfAssociates" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_7" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_8" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_Assets" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_8" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_9" xlink:href="highco-2020-12-31.xsd#highco_AverageNumberOfShares" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_9" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_10" xlink:href="highco-2020-12-31.xsd#highco_BasicEarningsLossAttributableToOwnersOfParentPerShare" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_10" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_11" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_BasicEarningsLossPerShare" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_11" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_12" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_BasicEarningsLossPerShareFromContinuingOperations" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_12" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_13" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CashAndCashEquivalents" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_13" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_14" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_14" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_15" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_15" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_16" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_16" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_17" xlink:href="highco-2020-12-31.xsd#highco_CashFlowsFromUsedInFinancingActivitiesDueToDiscontinuedOperations" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_17" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_18" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_18" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_19" xlink:href="highco-2020-12-31.xsd#highco_CashFlowsFromUsedInInvestingActivitiesDueToDiscontinuedOperations" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_19" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_20" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_20" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_21" xlink:href="highco-2020-12-31.xsd#highco_CashFlowsFromUsedInOperatingActivitiesDueToDiscontinuedOperations" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_21" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_22" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_22" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_23" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_23" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_24" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ComprehensiveIncome" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_24" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_25" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_25" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_26" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_26" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_27" xlink:href="highco-2020-12-31.xsd#highco_CostGainOfNetDebt" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_27" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_28" xlink:href="highco-2020-12-31.xsd#highco_CostOfDebt" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_28" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_29" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CountryOfIncorporation" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_29" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_30" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CurrentAdvancesToSuppliers" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_30" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_31" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CurrentAssets" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_31" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_32" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CurrentLeaseLiabilities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_32" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_33" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CurrentLiabilities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_33" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_34" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CurrentLoansAndReceivables" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_34" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_35" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CurrentTaxAssetsCurrent" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_35" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_36" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_36" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_37" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CurrentValueAddedTaxPayables" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_37" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_38" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CurrentValueAddedTaxReceivables" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_38" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_39" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_DeferredTaxAssets" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_39" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_40" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_DepreciationAndAmortisationExpense" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_40" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_41" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_41" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_42" xlink:href="highco-2020-12-31.xsd#highco_DilutedEarningsLossAttributableToOwnersOfParentPerShare" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_42" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_43" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_DilutedEarningsLossPerShare" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_43" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_44" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_DilutedEarningsLossPerShareFromContinuingOperations" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_44" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_45" xlink:href="highco-2020-12-31.xsd#highco_DilutedNumberOfSharesIssued" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_45" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_46" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_DividendsPaid" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_46" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_47" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_DividendsPaidClassifiedAsFinancingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_47" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_48" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_DividendsReceivedClassifiedAsOperatingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_48" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_49" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_DomicileOfEntity" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_49" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_50" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_50" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_51" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_EmployeeBenefitsExpense" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_51" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_52" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_Equity" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_52" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_53" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_EquityAndLiabilities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_53" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_54" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_EquityAttributableToOwnersOfParent" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_54" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_55" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ExplanationOfChangeInNameOfReportingEntityOrOtherMeansOfIdentificationFromEndOfPrecedingReportingPeriod" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_55" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_56" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_Goodwill" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_56" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_57" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_57" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_58" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLoss" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_58" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_59" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalents" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_59" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_60" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_60" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_61" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseThroughSharebasedPaymentTransactions" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_61" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_62" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_62" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_63" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IncreaseDecreaseThroughTreasuryShareTransactions" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_63" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_64" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IntangibleAssetsOtherThanGoodwill" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_64" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_65" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_InterestIncomeOnCashAndCashEquivalents" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_65" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_66" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_Inventories" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_66" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_67" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_67" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_68" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_IssuedCapital" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_68" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_69" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_LegalFormOfEntity" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_69" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_70" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_Liabilities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_70" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_71" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_LiabilitiesIncludedInDisposalGroupsClassifiedAsHeldForSale" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_71" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_72" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_LongtermBorrowings" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_72" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_73" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NameOfParentEntity" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_73" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_74" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_74" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_75" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NameOfUltimateParentOfGroup" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_75" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_76" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NoncontrollingInterests" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_76" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_77" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NoncurrentAssets" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_77" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_78" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_78" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_79" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NoncurrentLeaseLiabilities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_79" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_80" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NoncurrentLiabilities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_80" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_81" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NoncurrentLiabilitiesRecognisedAsOfAcquisitionDate" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_81" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_82" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_82" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_83" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NumberOfSharesIssued" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_83" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_84" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherComprehensiveIncome" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_84" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_85" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxExchangeDifferencesOnTranslation" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_85" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_86" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_86" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_87" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherCurrentLiabilities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_87" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_88" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherFinanceCost" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_88" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_89" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherFinanceIncome" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_89" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_90" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherNoncurrentAssets" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_90" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_91" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherNoncurrentFinancialAssets" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_91" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_92" xlink:href="highco-2020-12-31.xsd#highco_OtherOperatingExpenses" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_92" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_93" xlink:href="highco-2020-12-31.xsd#highco_OtherOperatingIncome" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_93" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_94" xlink:href="highco-2020-12-31.xsd#highco_OtherOperatingIncomeFromNonOrdinaryActivitiesAndOtherOperatingExpensesFromNonOrdinaryActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_94" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_95" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherShorttermProvisions" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_95" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_96" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_96" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_97" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_PaymentsToAcquireOrRedeemEntitysShares" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_97" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_98" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_PrincipalPlaceOfBusiness" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_98" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_99" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_99" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_100" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ProceedsFromIssuingShares" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_100" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_101" xlink:href="highco-2020-12-31.xsd#highco_ProceedsOfPropertyPlantEquipmentAndIntangibleAssetsOtherThanGoodwill" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_101" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_102" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ProfitLoss" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_102" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_103" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_103" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_104" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_104" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_105" xlink:href="highco-2020-12-31.xsd#highco_ProfitLossForThePeriod" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_105" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_106" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ProfitLossFromContinuingOperations" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_106" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_107" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ProfitLossFromDiscontinuedOperations" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_107" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_108" xlink:href="highco-2020-12-31.xsd#highco_ProfitLossFromDiscontinuedOperationsRestated" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_108" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_109" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_109" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_110" xlink:href="highco-2020-12-31.xsd#highco_ProfitLossFromOrdinaryOperatingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_110" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_111" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_PropertyPlantAndEquipment" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_111" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_112" xlink:href="highco-2020-12-31.xsd#highco_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivitiesNet" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_112" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_113" xlink:href="highco-2020-12-31.xsd#highco_PurchaseOfPropertyPlantEquipmentAndIntangibleAssetsOtherThanGoodwill" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_113" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_114" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_RawMaterialsAndConsumablesUsed" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_114" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_115" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_115" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_116" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_RetainedEarnings" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_116" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_117" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_Revenue" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_117" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_118" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_RightofuseAssets" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_118" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_119" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_119" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_120" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_SharePremium" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_120" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_121" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ShorttermBorrowings" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_121" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_122" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_TaxExpenseOtherThanIncomeTaxExpense" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_122" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_123" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_123" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_124" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_TradeAndOtherCurrentReceivables" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1.0" xlink:from="loc_124" xlink:to="LineItemsNotDimensionallyQualified" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.esef_all.com/role/Anchoring" xlink:type="extended">
    <link:loc xlink:label="loc_choring_1_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_BasicEarningsLossPerShare" xlink:type="locator" />
    <link:loc xlink:label="highco_BasicEarningsLossAttributableToOwnersOfParentPerShare" xlink:href="highco-2020-12-31.xsd#highco_BasicEarningsLossAttributableToOwnersOfParentPerShare" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_1_1" xlink:to="highco_BasicEarningsLossAttributableToOwnersOfParentPerShare" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_choring_2_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:type="locator" />
    <link:loc xlink:label="highco_CashFlowsFromUsedInFinancingActivitiesDueToDiscontinuedOperations" xlink:href="highco-2020-12-31.xsd#highco_CashFlowsFromUsedInFinancingActivitiesDueToDiscontinuedOperations" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_2_1" xlink:to="highco_CashFlowsFromUsedInFinancingActivitiesDueToDiscontinuedOperations" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="highco_CashFlowsFromUsedInInvestingActivitiesDueToDiscontinuedOperations" xlink:href="highco-2020-12-31.xsd#highco_CashFlowsFromUsedInInvestingActivitiesDueToDiscontinuedOperations" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_2_1" xlink:to="highco_CashFlowsFromUsedInInvestingActivitiesDueToDiscontinuedOperations" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="highco_CashFlowsFromUsedInOperatingActivitiesDueToDiscontinuedOperations" xlink:href="highco-2020-12-31.xsd#highco_CashFlowsFromUsedInOperatingActivitiesDueToDiscontinuedOperations" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_2_1" xlink:to="highco_CashFlowsFromUsedInOperatingActivitiesDueToDiscontinuedOperations" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_choring_3_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_DilutedEarningsLossPerShare" xlink:type="locator" />
    <link:loc xlink:label="highco_DilutedEarningsLossAttributableToOwnersOfParentPerShare" xlink:href="highco-2020-12-31.xsd#highco_DilutedEarningsLossAttributableToOwnersOfParentPerShare" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_3_1" xlink:to="highco_DilutedEarningsLossAttributableToOwnersOfParentPerShare" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_choring_4_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_FinanceCosts" xlink:type="locator" />
    <link:loc xlink:label="highco_CostOfDebt" xlink:href="highco-2020-12-31.xsd#highco_CostOfDebt" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_4_1" xlink:to="highco_CostOfDebt" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_choring_5_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_NumberOfSharesIssued" xlink:type="locator" />
    <link:loc xlink:label="highco_AverageNumberOfShares" xlink:href="highco-2020-12-31.xsd#highco_AverageNumberOfShares" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_5_1" xlink:to="highco_AverageNumberOfShares" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="highco_DilutedNumberOfSharesIssued" xlink:href="highco-2020-12-31.xsd#highco_DilutedNumberOfSharesIssued" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_5_1" xlink:to="highco_DilutedNumberOfSharesIssued" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_choring_6_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherExpenseByNature" xlink:type="locator" />
    <link:loc xlink:label="highco_OtherOperatingExpenses" xlink:href="highco-2020-12-31.xsd#highco_OtherOperatingExpenses" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_6_1" xlink:to="highco_OtherOperatingExpenses" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_choring_7_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_OtherIncome" xlink:type="locator" />
    <link:loc xlink:label="highco_OtherOperatingIncome" xlink:href="highco-2020-12-31.xsd#highco_OtherOperatingIncome" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_7_1" xlink:to="highco_OtherOperatingIncome" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="highco_OtherOperatingIncomeFromNonOrdinaryActivitiesAndOtherOperatingExpensesFromNonOrdinaryActivities" xlink:href="highco-2020-12-31.xsd#highco_OtherOperatingIncomeFromNonOrdinaryActivitiesAndOtherOperatingExpensesFromNonOrdinaryActivities" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_7_1" xlink:to="highco_OtherOperatingIncomeFromNonOrdinaryActivitiesAndOtherOperatingExpensesFromNonOrdinaryActivities" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_choring_8_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:type="locator" />
    <link:loc xlink:label="highco_ProceedsOfPropertyPlantEquipmentAndIntangibleAssetsOtherThanGoodwill" xlink:href="highco-2020-12-31.xsd#highco_ProceedsOfPropertyPlantEquipmentAndIntangibleAssetsOtherThanGoodwill" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_8_1" xlink:to="highco_ProceedsOfPropertyPlantEquipmentAndIntangibleAssetsOtherThanGoodwill" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_choring_9_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_ProfitLossFromDiscontinuedOperations" xlink:type="locator" />
    <link:loc xlink:label="highco_ProfitLossFromDiscontinuedOperationsRestated" xlink:href="highco-2020-12-31.xsd#highco_ProfitLossFromDiscontinuedOperationsRestated" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_9_1" xlink:to="highco_ProfitLossFromDiscontinuedOperationsRestated" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_choring_10_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivities" xlink:type="locator" />
    <link:loc xlink:label="highco_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivitiesNet" xlink:href="highco-2020-12-31.xsd#highco_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivitiesNet" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_10_1" xlink:to="highco_PurchaseOfFinancialInstrumentsClassifiedAsInvestingActivitiesNet" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_choring_11_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:type="locator" />
    <link:loc xlink:label="highco_PurchaseOfPropertyPlantEquipmentAndIntangibleAssetsOtherThanGoodwill" xlink:href="highco-2020-12-31.xsd#highco_PurchaseOfPropertyPlantEquipmentAndIntangibleAssetsOtherThanGoodwill" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_11_1" xlink:to="highco_PurchaseOfPropertyPlantEquipmentAndIntangibleAssetsOtherThanGoodwill" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
    <link:loc xlink:label="loc_choring_12_1" xlink:href="http://xbrl.ifrs.org/taxonomy/2019-03-27/full_ifrs/full_ifrs-cor_2019-03-27.xsd#ifrs-full_RetainedEarnings" xlink:type="locator" />
    <link:loc xlink:label="highco_ProfitLossForThePeriod" xlink:href="highco-2020-12-31.xsd#highco_ProfitLossForThePeriod" xlink:type="locator" />
    <link:definitionArc xlink:arcrole="http://www.esma.europa.eu/xbrl/esef/arcrole/wider-narrower" order="1" xlink:from="loc_choring_12_1" xlink:to="highco_ProfitLossForThePeriod" xlink:type="arc" xbrldt:contextElement="scenario" xbrldt:closed="true" />
  </link:definitionLink>
</link:linkbase>