﻿<?xml version="1.0" encoding="utf-8"?>
<!--XBRL document created with Toppan Merrill Bridge  9.6.8042.36810 -->
<!--Based on XBRL 2.1-->
<!--Created on: 2/25/2022 8:36:16 AM-->
<!--Modified on: 2/25/2022 8:36:16 AM-->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:hlpn="https://www.helpe.gr">
  <roleRef xlink:type="simple" xlink:href="213800YUBJMZYR1SNG35-2021-12-31.xsd#DocumentLegalEntityInformation" roleURI="https://www.helpe.gr/role/DocumentLegalEntityInformation" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="213800YUBJMZYR1SNG35-2021-12-31.xsd#StatementConsolidatedStatementOfFinancialPosition" roleURI="https://www.helpe.gr/role/StatementConsolidatedStatementOfFinancialPosition" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="213800YUBJMZYR1SNG35-2021-12-31.xsd#StatementConsolidatedStatementOfComprehensiveIncomeLoss" roleURI="https://www.helpe.gr/role/StatementConsolidatedStatementOfComprehensiveIncomeLoss" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="213800YUBJMZYR1SNG35-2021-12-31.xsd#StatementConsolidatedStatementOfChangesInEquity" roleURI="https://www.helpe.gr/role/StatementConsolidatedStatementOfChangesInEquity" xmlns="http://www.xbrl.org/2003/linkbase" />
  <roleRef xlink:type="simple" xlink:href="213800YUBJMZYR1SNG35-2021-12-31.xsd#StatementConsolidatedStatementOfCashFlows" roleURI="https://www.helpe.gr/role/StatementConsolidatedStatementOfCashFlows" xmlns="http://www.xbrl.org/2003/linkbase" />
  <presentationLink xlink:role="https://www.helpe.gr/role/DocumentLegalEntityInformation" xlink:type="extended" xlink:title="00090 - Document - Legal Entity Information" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="http://www.esma.europa.eu/taxonomy/2020-03-16/esef_cor.xsd#esef_cor_NotesAccountingPoliciesAndMandatoryTags" xlink:label="NotesAccountingPoliciesAndMandatoryTags" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification" xlink:label="ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NotesAccountingPoliciesAndMandatoryTags" xlink:to="ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification_637813749764872326" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ExplanationOfChangeInNameOfReportingEntityOrOtherMeansOfIdentificationFromEndOfPrecedingReportingPeriod" xlink:label="ifrs-full_ExplanationOfChangeInNameOfReportingEntityOrOtherMeansOfIdentificationFromEndOfPrecedingReportingPeriod_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NotesAccountingPoliciesAndMandatoryTags" xlink:to="ifrs-full_ExplanationOfChangeInNameOfReportingEntityOrOtherMeansOfIdentificationFromEndOfPrecedingReportingPeriod_637813749764872326" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DomicileOfEntity" xlink:label="ifrs-full_DomicileOfEntity_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NotesAccountingPoliciesAndMandatoryTags" xlink:to="ifrs-full_DomicileOfEntity_637813749764872326" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_LegalFormOfEntity" xlink:label="ifrs-full_LegalFormOfEntity_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NotesAccountingPoliciesAndMandatoryTags" xlink:to="ifrs-full_LegalFormOfEntity_637813749764872326" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CountryOfIncorporation" xlink:label="ifrs-full_CountryOfIncorporation_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NotesAccountingPoliciesAndMandatoryTags" xlink:to="ifrs-full_CountryOfIncorporation_637813749764872326" order="5" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AddressOfRegisteredOfficeOfEntity" xlink:label="ifrs-full_AddressOfRegisteredOfficeOfEntity_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NotesAccountingPoliciesAndMandatoryTags" xlink:to="ifrs-full_AddressOfRegisteredOfficeOfEntity_637813749764872326" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PrincipalPlaceOfBusiness" xlink:label="ifrs-full_PrincipalPlaceOfBusiness_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NotesAccountingPoliciesAndMandatoryTags" xlink:to="ifrs-full_PrincipalPlaceOfBusiness_637813749764872326" order="7" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities" xlink:label="ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NotesAccountingPoliciesAndMandatoryTags" xlink:to="ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities_637813749764872326" order="8" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NameOfParentEntity" xlink:label="ifrs-full_NameOfParentEntity_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NotesAccountingPoliciesAndMandatoryTags" xlink:to="ifrs-full_NameOfParentEntity_637813749764872326" order="9" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NameOfUltimateParentOfGroup" xlink:label="ifrs-full_NameOfUltimateParentOfGroup_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="NotesAccountingPoliciesAndMandatoryTags" xlink:to="ifrs-full_NameOfUltimateParentOfGroup_637813749764872326" order="10" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
  </presentationLink>
  <presentationLink xlink:role="https://www.helpe.gr/role/StatementConsolidatedStatementOfFinancialPosition" xlink:type="extended" xlink:title="00100 - Statement - Consolidated Statement of financial position" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_StatementOfFinancialPositionAbstract" xlink:label="ifrs-full_StatementOfFinancialPositionAbstract" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AssetsAbstract" xlink:label="ifrs-full_AssetsAbstract_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_AssetsAbstract_637813749764872326" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentAssetsAbstract" xlink:label="ifrs-full_NoncurrentAssetsAbstract_637813749764872326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_AssetsAbstract_637813749764872326" xlink:to="ifrs-full_NoncurrentAssetsAbstract_637813749764872326" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PropertyPlantAndEquipment" xlink:label="ifrs-full_PropertyPlantAndEquipment_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentAssetsAbstract_637813749764872326" xlink:to="ifrs-full_PropertyPlantAndEquipment_637813749764882333" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RightofuseAssets" xlink:label="ifrs-full_RightofuseAssets_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentAssetsAbstract_637813749764872326" xlink:to="ifrs-full_RightofuseAssets_637813749764882333" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IntangibleAssetsAndGoodwill" xlink:label="ifrs-full_IntangibleAssetsAndGoodwill_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentAssetsAbstract_637813749764872326" xlink:to="ifrs-full_IntangibleAssetsAndGoodwill_637813749764882333" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_InvestmentAccountedForUsingEquityMethod" xlink:label="ifrs-full_InvestmentAccountedForUsingEquityMethod_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentAssetsAbstract_637813749764872326" xlink:to="ifrs-full_InvestmentAccountedForUsingEquityMethod_637813749764882333" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DeferredTaxAssets" xlink:label="ifrs-full_DeferredTaxAssets_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentAssetsAbstract_637813749764872326" xlink:to="ifrs-full_DeferredTaxAssets_637813749764882333" order="5" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentInvestmentsInEquityInstrumentsDesignatedAtFairValueThroughOtherComprehensiveIncome" xlink:label="ifrs-full_NoncurrentInvestmentsInEquityInstrumentsDesignatedAtFairValueThroughOtherComprehensiveIncome_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentAssetsAbstract_637813749764872326" xlink:to="ifrs-full_NoncurrentInvestmentsInEquityInstrumentsDesignatedAtFairValueThroughOtherComprehensiveIncome_637813749764882333" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentReceivables" xlink:label="ifrs-full_NoncurrentReceivables_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentAssetsAbstract_637813749764872326" xlink:to="ifrs-full_NoncurrentReceivables_637813749764882333" order="7" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentAssets" xlink:label="ifrs-full_NoncurrentAssets_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentAssetsAbstract_637813749764872326" xlink:to="ifrs-full_NoncurrentAssets_637813749764882333" order="8" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentAssetsAbstract" xlink:label="ifrs-full_CurrentAssetsAbstract_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_AssetsAbstract_637813749764872326" xlink:to="ifrs-full_CurrentAssetsAbstract_637813749764882333" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Inventories" xlink:label="ifrs-full_Inventories_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentAssetsAbstract_637813749764882333" xlink:to="ifrs-full_Inventories_637813749764882333" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_TradeAndOtherCurrentReceivables" xlink:label="ifrs-full_TradeAndOtherCurrentReceivables_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentAssetsAbstract_637813749764882333" xlink:to="ifrs-full_TradeAndOtherCurrentReceivables_637813749764882333" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentTaxAssetsCurrent" xlink:label="ifrs-full_CurrentTaxAssetsCurrent_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentAssetsAbstract_637813749764882333" xlink:to="ifrs-full_CurrentTaxAssetsCurrent_637813749764882333" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentDerivativeFinancialAssets" xlink:label="ifrs-full_CurrentDerivativeFinancialAssets_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentAssetsAbstract_637813749764882333" xlink:to="ifrs-full_CurrentDerivativeFinancialAssets_637813749764882333" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="ifrs-full_CashAndCashEquivalents_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentAssetsAbstract_637813749764882333" xlink:to="ifrs-full_CashAndCashEquivalents_637813749764882333" order="5" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" xlink:label="ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners_637813749764882333" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentAssetsAbstract_637813749764882333" xlink:to="ifrs-full_CurrentAssetsOtherThanAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners_637813749764882333" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners" xlink:label="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners_637813749764892325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_AssetsAbstract_637813749764872326" xlink:to="ifrs-full_NoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleOrAsHeldForDistributionToOwners_637813749764892325" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Assets" xlink:label="ifrs-full_Assets_637813749764892325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_AssetsAbstract_637813749764872326" xlink:to="ifrs-full_Assets_637813749764892325" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EquityAbstract" xlink:label="ifrs-full_EquityAbstract_637813749764892325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_EquityAbstract_637813749764892325" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="213800YUBJMZYR1SNG35-2021-12-31.xsd#hlpn_ShareCapitalAndSharePremium" xlink:label="hlpn_ShareCapitalAndSharePremium_637813749764892325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_EquityAbstract_637813749764892325" xlink:to="hlpn_ShareCapitalAndSharePremium_637813749764892325" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherReserves" xlink:label="ifrs-full_OtherReserves_637813749764892325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_EquityAbstract_637813749764892325" xlink:to="ifrs-full_OtherReserves_637813749764892325" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RetainedEarnings" xlink:label="ifrs-full_RetainedEarnings_637813749764892325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_EquityAbstract_637813749764892325" xlink:to="ifrs-full_RetainedEarnings_637813749764892325" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EquityAttributableToOwnersOfParent" xlink:label="ifrs-full_EquityAttributableToOwnersOfParent_637813749764892325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_EquityAbstract_637813749764892325" xlink:to="ifrs-full_EquityAttributableToOwnersOfParent_637813749764892325" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncontrollingInterests" xlink:label="ifrs-full_NoncontrollingInterests_637813749764892325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_EquityAbstract_637813749764892325" xlink:to="ifrs-full_NoncontrollingInterests_637813749764892325" order="5" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Equity" xlink:label="ifrs-full_Equity_637813749764902437" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_EquityAbstract_637813749764892325" xlink:to="ifrs-full_Equity_637813749764902437" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_LiabilitiesAbstract" xlink:label="ifrs-full_LiabilitiesAbstract_637813749764902437" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfFinancialPositionAbstract" xlink:to="ifrs-full_LiabilitiesAbstract_637813749764902437" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentLiabilitiesAbstract" xlink:label="ifrs-full_NoncurrentLiabilitiesAbstract_637813749764902437" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_LiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_NoncurrentLiabilitiesAbstract_637813749764902437" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_LongtermBorrowings" xlink:label="ifrs-full_LongtermBorrowings_637813749764902437" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_LongtermBorrowings_637813749764902437" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentLeaseLiabilities" xlink:label="ifrs-full_NoncurrentLeaseLiabilities_637813749764902437" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_NoncurrentLeaseLiabilities_637813749764902437" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DeferredTaxLiabilities" xlink:label="ifrs-full_DeferredTaxLiabilities_637813749764902437" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_DeferredTaxLiabilities_637813749764902437" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan" xlink:label="ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan_637813749764902437" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_NoncurrentRecognisedLiabilitiesDefinedBenefitPlan_637813749764902437" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentDerivativeFinancialLiabilities" xlink:label="ifrs-full_NoncurrentDerivativeFinancialLiabilities_637813749764902437" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_NoncurrentDerivativeFinancialLiabilities_637813749764902437" order="5" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherLongtermProvisions" xlink:label="ifrs-full_OtherLongtermProvisions_637813749764912330" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_OtherLongtermProvisions_637813749764912330" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherNoncurrentLiabilities" xlink:label="ifrs-full_OtherNoncurrentLiabilities_637813749764912330" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_OtherNoncurrentLiabilities_637813749764912330" order="7" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncurrentLiabilities" xlink:label="ifrs-full_NoncurrentLiabilities_637813749764912330" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_NoncurrentLiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_NoncurrentLiabilities_637813749764912330" order="8" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentLiabilitiesAbstract" xlink:label="ifrs-full_CurrentLiabilitiesAbstract_637813749764912330" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_LiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_CurrentLiabilitiesAbstract_637813749764912330" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_TradeAndOtherCurrentPayables" xlink:label="ifrs-full_TradeAndOtherCurrentPayables_637813749764912330" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentLiabilitiesAbstract_637813749764912330" xlink:to="ifrs-full_TradeAndOtherCurrentPayables_637813749764912330" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentDerivativeFinancialLiabilities" xlink:label="ifrs-full_CurrentDerivativeFinancialLiabilities_637813749764912330" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentLiabilitiesAbstract_637813749764912330" xlink:to="ifrs-full_CurrentDerivativeFinancialLiabilities_637813749764912330" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentTaxLiabilitiesCurrent" xlink:label="ifrs-full_CurrentTaxLiabilitiesCurrent_637813749764912330" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentLiabilitiesAbstract_637813749764912330" xlink:to="ifrs-full_CurrentTaxLiabilitiesCurrent_637813749764912330" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings" xlink:label="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings_637813749764912330" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentLiabilitiesAbstract_637813749764912330" xlink:to="ifrs-full_CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings_637813749764912330" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentLeaseLiabilities" xlink:label="ifrs-full_CurrentLeaseLiabilities_637813749764922326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentLiabilitiesAbstract_637813749764912330" xlink:to="ifrs-full_CurrentLeaseLiabilities_637813749764922326" order="5" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentDividendPayables" xlink:label="ifrs-full_CurrentDividendPayables_637813749764922326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentLiabilitiesAbstract_637813749764912330" xlink:to="ifrs-full_CurrentDividendPayables_637813749764922326" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CurrentLiabilities" xlink:label="ifrs-full_CurrentLiabilities_637813749764922326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CurrentLiabilitiesAbstract_637813749764912330" xlink:to="ifrs-full_CurrentLiabilities_637813749764922326" order="7" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Liabilities" xlink:label="ifrs-full_Liabilities_637813749764922326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_LiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_Liabilities_637813749764922326" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EquityAndLiabilities" xlink:label="ifrs-full_EquityAndLiabilities_637813749764922326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_LiabilitiesAbstract_637813749764902437" xlink:to="ifrs-full_EquityAndLiabilities_637813749764922326" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
  </presentationLink>
  <presentationLink xlink:role="https://www.helpe.gr/role/StatementConsolidatedStatementOfComprehensiveIncomeLoss" xlink:type="extended" xlink:title="00200 - Statement - Consolidated statement of comprehensive income (loss)" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncomeStatementAbstract" xlink:label="ifrs-full_IncomeStatementAbstract" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RevenueFromContractsWithCustomers" xlink:label="ifrs-full_RevenueFromContractsWithCustomers_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_RevenueFromContractsWithCustomers_637813749764932323" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CostOfSales" xlink:label="ifrs-full_CostOfSales_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_CostOfSales_637813749764932323" order="2" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_GrossProfit" xlink:label="ifrs-full_GrossProfit_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_GrossProfit_637813749764932323" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="213800YUBJMZYR1SNG35-2021-12-31.xsd#hlpn_SellingAndDistributionExpenses" xlink:label="hlpn_SellingAndDistributionExpenses_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="hlpn_SellingAndDistributionExpenses_637813749764932323" order="4" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_AdministrativeExpense" xlink:label="ifrs-full_AdministrativeExpense_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_AdministrativeExpense_637813749764932323" order="5" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources" xlink:label="ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources_637813749764932323" order="6" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_MiscellaneousOtherOperatingIncome" xlink:label="ifrs-full_MiscellaneousOtherOperatingIncome_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_MiscellaneousOtherOperatingIncome_637813749764932323" order="7" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_MiscellaneousOtherOperatingExpense" xlink:label="ifrs-full_MiscellaneousOtherOperatingExpense_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_MiscellaneousOtherOperatingExpense_637813749764932323" order="8" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossFromOperatingActivities" xlink:label="ifrs-full_ProfitLossFromOperatingActivities_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ProfitLossFromOperatingActivities_637813749764932323" order="9" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_FinanceIncome" xlink:label="ifrs-full_FinanceIncome_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_FinanceIncome_637813749764932323" order="10" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_FinanceCosts" xlink:label="ifrs-full_FinanceCosts_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_FinanceCosts_637813749764932323" order="11" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_InterestExpenseOnLeaseLiabilities" xlink:label="ifrs-full_InterestExpenseOnLeaseLiabilities_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_InterestExpenseOnLeaseLiabilities_637813749764932323" order="12" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_637813749764932323" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss_637813749764932323" order="13" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod" xlink:label="ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_637813749764942326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod_637813749764942326" order="14" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossBeforeTax" xlink:label="ifrs-full_ProfitLossBeforeTax_637813749764942326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ProfitLossBeforeTax_637813749764942326" order="15" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncomeTaxExpenseContinuingOperations" xlink:label="ifrs-full_IncomeTaxExpenseContinuingOperations_637813749764942326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_IncomeTaxExpenseContinuingOperations_637813749764942326" order="16" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLoss" xlink:label="ifrs-full_ProfitLoss_637813749764942326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ProfitLoss_637813749764942326" order="17" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossAttributableToAbstract" xlink:label="ifrs-full_ProfitLossAttributableToAbstract_637813749764942326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ProfitLossAttributableToAbstract_637813749764942326" order="18" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossAttributableToOwnersOfParent" xlink:label="ifrs-full_ProfitLossAttributableToOwnersOfParent_637813749764942326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ProfitLossAttributableToAbstract_637813749764942326" xlink:to="ifrs-full_ProfitLossAttributableToOwnersOfParent_637813749764942326" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLossAttributableToNoncontrollingInterests" xlink:label="ifrs-full_ProfitLossAttributableToNoncontrollingInterests_637813749764942326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ProfitLossAttributableToAbstract_637813749764942326" xlink:to="ifrs-full_ProfitLossAttributableToNoncontrollingInterests_637813749764942326" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncomeAbstract" xlink:label="ifrs-full_OtherComprehensiveIncomeAbstract_637813749764942326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_OtherComprehensiveIncomeAbstract_637813749764942326" order="19" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:label="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764942326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_OtherComprehensiveIncomeAbstract_637813749764942326" xlink:to="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764942326" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_637813749764942326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764942326" xlink:to="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_637813749764942326" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments_637813749764942326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764942326" xlink:to="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments_637813749764942326" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:label="ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_637813749764952326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764942326" xlink:to="ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_637813749764952326" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_637813749764952326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764942326" xlink:to="ifrs-full_OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTax_637813749764952326" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract" xlink:label="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764952326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_OtherComprehensiveIncomeAbstract_637813749764942326" xlink:to="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764952326" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax" xlink:label="ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax_637813749764952326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764952326" xlink:to="ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax_637813749764952326" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax" xlink:label="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_637813749764952326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764952326" xlink:to="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_637813749764952326" order="2" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax_637813749764952326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764952326" xlink:to="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax_637813749764952326" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax" xlink:label="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_637813749764952326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract_637813749764952326" xlink:to="ifrs-full_OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax_637813749764952326" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncome" xlink:label="ifrs-full_OtherComprehensiveIncome_637813749764952326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_OtherComprehensiveIncomeAbstract_637813749764942326" xlink:to="ifrs-full_OtherComprehensiveIncome_637813749764952326" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComprehensiveIncome" xlink:label="ifrs-full_ComprehensiveIncome_637813749764952326" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ComprehensiveIncome_637813749764952326" order="20" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComprehensiveIncomeAttributableToAbstract" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToAbstract_637813749764962325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_ComprehensiveIncomeAttributableToAbstract_637813749764962325" order="21" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_637813749764962325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComprehensiveIncomeAttributableToAbstract_637813749764962325" xlink:to="ifrs-full_ComprehensiveIncomeAttributableToOwnersOfParent_637813749764962325" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests" xlink:label="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_637813749764962325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComprehensiveIncomeAttributableToAbstract_637813749764962325" xlink:to="ifrs-full_ComprehensiveIncomeAttributableToNoncontrollingInterests_637813749764962325" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_BasicEarningsLossPerShare" xlink:label="ifrs-full_BasicEarningsLossPerShare_637813749764962325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_IncomeStatementAbstract" xlink:to="ifrs-full_BasicEarningsLossPerShare_637813749764962325" order="22" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
  </presentationLink>
  <presentationLink xlink:role="https://www.helpe.gr/role/StatementConsolidatedStatementOfChangesInEquity" xlink:type="extended" xlink:title="00300 - Statement - Consolidated statement of changes in equity" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_StatementOfChangesInEquityAbstract" xlink:label="ifrs-full_StatementOfChangesInEquityAbstract" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_StatementOfChangesInEquityTable" xlink:label="ifrs-full_StatementOfChangesInEquityTable_637813749764962325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityAbstract" xlink:to="ifrs-full_StatementOfChangesInEquityTable_637813749764962325" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComponentsOfEquityAxis" xlink:label="ifrs-full_ComponentsOfEquityAxis_637813749764962325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityTable_637813749764962325" xlink:to="ifrs-full_ComponentsOfEquityAxis_637813749764962325" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IssuedCapitalMember" xlink:label="ifrs-full_IssuedCapitalMember_637813749764962325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfEquityAxis_637813749764962325" xlink:to="ifrs-full_IssuedCapitalMember_637813749764962325" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherReservesMember" xlink:label="ifrs-full_OtherReservesMember_637813749764962325" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfEquityAxis_637813749764962325" xlink:to="ifrs-full_OtherReservesMember_637813749764962325" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RetainedEarningsMember" xlink:label="ifrs-full_RetainedEarningsMember_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfEquityAxis_637813749764962325" xlink:to="ifrs-full_RetainedEarningsMember_637813749764972327" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EquityAttributableToOwnersOfParentMember" xlink:label="ifrs-full_EquityAttributableToOwnersOfParentMember_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfEquityAxis_637813749764962325" xlink:to="ifrs-full_EquityAttributableToOwnersOfParentMember_637813749764972327" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_NoncontrollingInterestsMember" xlink:label="ifrs-full_NoncontrollingInterestsMember_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfEquityAxis_637813749764962325" xlink:to="ifrs-full_NoncontrollingInterestsMember_637813749764972327" order="5" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EquityMember" xlink:label="ifrs-full_EquityMember_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_ComponentsOfEquityAxis_637813749764962325" xlink:to="ifrs-full_EquityMember_637813749764972327" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis" xlink:label="ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityTable_637813749764962325" xlink:to="ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_637813749764972327" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_FinancialEffectOfChangesInAccountingPolicyMember" xlink:label="ifrs-full_FinancialEffectOfChangesInAccountingPolicyMember_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_637813749764972327" xlink:to="ifrs-full_FinancialEffectOfChangesInAccountingPolicyMember_637813749764972327" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="213800YUBJMZYR1SNG35-2021-12-31.xsd#hlpn_CumulativeEffectAfterAdjustmentMember" xlink:label="hlpn_CumulativeEffectAfterAdjustmentMember_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_637813749764972327" xlink:to="hlpn_CumulativeEffectAfterAdjustmentMember_637813749764972327" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RestatedMember" xlink:label="ifrs-full_RestatedMember_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis_637813749764972327" xlink:to="ifrs-full_RestatedMember_637813749764972327" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_StatementOfChangesInEquityLineItems" xlink:label="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityTable_637813749764962325" xlink:to="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/label" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Equity" xlink:label="ifrs-full_Equity_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_Equity_637813749764972327" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments_637813749764972327" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax" xlink:label="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax_637813749764972327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationNetOfTax_637813749764972327" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans" xlink:label="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_637813749764982331" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans_637813749764982331" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax" xlink:label="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_637813749764982331" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_ReclassificationAdjustmentsOnCashFlowHedgesNetOfTax_637813749764982331" order="5" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" priority="2" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax" xlink:label="ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax_637813749764982331" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_GainsLossesOnCashFlowHedgesNetOfTax_637813749764982331" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax" xlink:label="ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_637813749764982331" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillNotBeReclassifiedToProfitOrLossNetOfTax_637813749764982331" order="7" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_OtherComprehensiveIncome" xlink:label="ifrs-full_OtherComprehensiveIncome_637813749764982331" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_OtherComprehensiveIncome_637813749764982331" order="8" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProfitLoss" xlink:label="ifrs-full_ProfitLoss_637813749764982331" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_ProfitLoss_637813749764982331" order="9" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ComprehensiveIncome" xlink:label="ifrs-full_ComprehensiveIncome_637813749764982331" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_ComprehensiveIncome_637813749764982331" order="10" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl" xlink:label="ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_637813749764982331" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl_637813749764982331" order="11" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests" xlink:label="ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests_637813749764982331" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_DividendsRecognisedAsDistributionsToNoncontrollingInterests_637813749764982331" order="12" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent" xlink:label="ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent_637813749764982331" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_DividendsRecognisedAsDistributionsToOwnersOfParent_637813749764982331" order="13" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity" xlink:label="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_637813749764992382" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_IncreaseDecreaseThroughTransfersAndOtherChangesEquity_637813749764992382" order="14" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_Equity" xlink:label="ifrs-full_Equity_637813749764992382" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfChangesInEquityLineItems_637813749764972327" xlink:to="ifrs-full_Equity_637813749764992382" order="15" use="optional" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="1" />
  </presentationLink>
  <presentationLink xlink:role="https://www.helpe.gr/role/StatementConsolidatedStatementOfCashFlows" xlink:type="extended" xlink:title="00400 - Statement - Consolidated statement of cash flows" xmlns="http://www.xbrl.org/2003/linkbase">
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_StatementOfCashFlowsAbstract" xlink:label="ifrs-full_StatementOfCashFlowsAbstract" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_637813749764992382" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_637813749764992382" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInOperations" xlink:label="ifrs-full_CashFlowsFromUsedInOperations_637813749764992382" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_CashFlowsFromUsedInOperations_637813749764992382" order="1" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities" xlink:label="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_637813749764992382" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_IncomeTaxesPaidRefundClassifiedAsOperatingActivities_637813749764992382" order="2" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInOperatingActivities_637813749764992382" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInOperatingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_CashFlowsFromUsedInOperatingActivities_637813749764992382" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:label="ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_637813749764992382" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_637813749764992382" order="1" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets" xlink:label="ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets_637813749765002440" order="2" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod" xlink:label="ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod_637813749765002440" order="3" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013" xlink:label="ifrs-full_CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013_637813749765002440" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PaymentsForShareIssueCosts" xlink:label="ifrs-full_PaymentsForShareIssueCosts_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_PaymentsForShareIssueCosts_637813749765002440" order="5" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities" xlink:label="ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_ProceedsFromGovernmentGrantsClassifiedAsInvestingActivities_637813749765002440" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_InterestReceivedClassifiedAsInvestingActivities" xlink:label="ifrs-full_InterestReceivedClassifiedAsInvestingActivities_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_InterestReceivedClassifiedAsInvestingActivities_637813749765002440" order="7" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="213800YUBJMZYR1SNG35-2021-12-31.xsd#hlpn_PrepaymentsForRightOfUseAssets" xlink:label="hlpn_PrepaymentsForRightOfUseAssets_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" xlink:to="hlpn_PrepaymentsForRightOfUseAssets_637813749765002440" order="8" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DividendsReceivedClassifiedAsInvestingActivities" xlink:label="ifrs-full_DividendsReceivedClassifiedAsInvestingActivities_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_DividendsReceivedClassifiedAsInvestingActivities_637813749765002440" order="9" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations" xlink:label="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_ProceedsFromDisposalOfNoncurrentAssetsOrDisposalGroupsClassifiedAsHeldForSaleAndDiscontinuedOperations_637813749765002440" order="10" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInInvestingActivities_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInInvestingActivitiesAbstract_637813749764992382" xlink:to="ifrs-full_CashFlowsFromUsedInInvestingActivities_637813749765002440" order="11" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_637813749765002440" order="3" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_InterestPaidClassifiedAsFinancingActivities" xlink:label="ifrs-full_InterestPaidClassifiedAsFinancingActivities_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_637813749765002440" xlink:to="ifrs-full_InterestPaidClassifiedAsFinancingActivities_637813749765002440" order="1" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities" xlink:label="ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities_637813749765002440" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_637813749765002440" xlink:to="ifrs-full_DividendsPaidToEquityHoldersOfParentClassifiedAsFinancingActivities_637813749765002440" order="2" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities" xlink:label="ifrs-full_DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities_637813749765012327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_637813749765002440" xlink:to="ifrs-full_DividendsPaidToNoncontrollingInterestsClassifiedAsFinancingActivities_637813749765012327" order="3" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProceedsFromContributionsOfNoncontrollingInterests" xlink:label="ifrs-full_ProceedsFromContributionsOfNoncontrollingInterests_637813749765012327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_637813749765002440" xlink:to="ifrs-full_ProceedsFromContributionsOfNoncontrollingInterests_637813749765012327" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities" xlink:label="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_637813749765012327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_637813749765002440" xlink:to="ifrs-full_ProceedsFromBorrowingsClassifiedAsFinancingActivities_637813749765012327" order="5" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities" xlink:label="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_637813749765012327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_637813749765002440" xlink:to="ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities_637813749765012327" order="6" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities" xlink:label="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_637813749765012327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_637813749765002440" xlink:to="ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities_637813749765012327" order="7" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="213800YUBJMZYR1SNG35-2021-12-31.xsd#hlpn_PaymentsOfLeaseLiabilitiesInterestClassifiedAsFinancingActivities" xlink:label="hlpn_PaymentsOfLeaseLiabilitiesInterestClassifiedAsFinancingActivities_637813749765012327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_637813749765002440" xlink:to="hlpn_PaymentsOfLeaseLiabilitiesInterestClassifiedAsFinancingActivities_637813749765012327" order="8" use="optional" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:label="ifrs-full_CashFlowsFromUsedInFinancingActivities_637813749765012327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_CashFlowsFromUsedInFinancingActivitiesAbstract_637813749765002440" xlink:to="ifrs-full_CashFlowsFromUsedInFinancingActivities_637813749765012327" order="9" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges" xlink:label="ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_637813749765012327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges_637813749765012327" order="4" use="optional" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="ifrs-full_CashAndCashEquivalents_637813749765012327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_CashAndCashEquivalents_637813749765012327" order="5" use="optional" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents" xlink:label="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_637813749765012327" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents_637813749765012327" order="6" use="optional" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" priority="1" />
    <loc xlink:type="locator" xlink:href="http://xbrl.ifrs.org/taxonomy/2020-03-16/full_ifrs/full_ifrs-cor_2020-03-16.xsd#ifrs-full_CashAndCashEquivalents" xlink:label="ifrs-full_CashAndCashEquivalents_6378137497650123271" />
    <presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ifrs-full_StatementOfCashFlowsAbstract" xlink:to="ifrs-full_CashAndCashEquivalents_6378137497650123271" order="7" use="optional" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" priority="2" />
  </presentationLink>
</link:linkbase>