<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<!--Created by IRIS Business Services Ltd., Powered by IRIS Carbon, Unique Code 67ffe0934944db24b425a9ad, Generated At Wed, 16 Apr 2025 16:53:39 GMT-->
<xsd:schema xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:ifrs-full="https://xbrl.ifrs.org/taxonomy/2022-03-24/ifrs-full" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:esef_cor="https://www.esma.europa.eu/taxonomy/2022-03-24/esef_cor" xmlns:upg="http://www.unifiedpost.com/xbrl/2024" elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.unifiedpost.com/xbrl/2024">
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:type="simple" xlink:href="254900QIETDP1T932G86-2024-12-31_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="254900QIETDP1T932G86-2024-12-31_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="254900QIETDP1T932G86-2024-12-31_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="254900QIETDP1T932G86-2024-12-31_lab-fr.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="254900QIETDP1T932G86-2024-12-31_lab-en.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="https://www.esma.europa.eu/taxonomy/2022-03-24/esef_cor-lab-en.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:linkbaseRef xlink:type="simple" xlink:href="https://www.esma.europa.eu/taxonomy/2022-03-24/esef_cor-lab-fr.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
      <link:roleType roleURI="http://www.unifiedpost.com/xbrl/role/MandatoryElements" id="MandatoryElements">
        <link:definition>0000 - Document - Mandatory Elements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.unifiedpost.com/xbrl/role/Étatconsolidédesrésultatsetautresélémentsdurésultatglobal" id="Étatconsolidédesrésultatsetautresélémentsdurésultatglobal">
        <link:definition>0010 - Statement - État consolidé des résultats et autres éléments du résultat global</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.unifiedpost.com/xbrl/role/Étatconsolidédelasituationfinancière" id="Étatconsolidédelasituationfinancière">
        <link:definition>0020 - Statement - État consolidé de la situation financière</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.unifiedpost.com/xbrl/role/Étatconsolidédesvariationsdescapitauxpropres" id="Étatconsolidédesvariationsdescapitauxpropres">
        <link:definition>0030 - Statement - État consolidé des variations des capitaux propres</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.unifiedpost.com/xbrl/role/Étatconsolidédesfluxdetrésorerie" id="Étatconsolidédesfluxdetrésorerie">
        <link:definition>0040 - Statement - État consolidé des flux de trésorerie</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.unifiedpost.com/xbrl/role/Notes" id="Notes">
        <link:definition>0050 - Disclosure - Notes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.unifiedpost.com/xbrl/role/Anchoring" id="Anchoring">
        <link:definition>2000 - Anchoring - ANCHORING</link:definition>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:import namespace="https://www.esma.europa.eu/taxonomy/2022-03-24/esef_cor" schemaLocation="https://www.esma.europa.eu/taxonomy/2022-03-24/esef_cor.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/XLink" schemaLocation="http://www.xbrl.org/2003/xl-2003-12-31.xsd" />
  <xsd:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:element name="CostsRelatedToEquityIssuance" id="upg_CostsRelatedToEquityIssuance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="NonCurrentLiabilitiesAssociatedWithPuttableNonControllingInterests" id="upg_NonCurrentLiabilitiesAssociatedWithPuttableNonControllingInterests" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="CostsRelatedToEquityIssuanceMember" id="upg_CostsRelatedToEquityIssuanceMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" abstract="true" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsForDepreciationOfRightOfUseAssets" id="upg_AdjustmentsForDepreciationOfRightOfUseAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsForAmortisationAndImpairmentOfIntangibleFixedAssets" id="upg_AdjustmentsForAmortisationAndImpairmentOfIntangibleFixedAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsForDepreciationAndImpairmentOfPropertyPlantAndEquipment" id="upg_AdjustmentsForDepreciationAndImpairmentOfPropertyPlantAndEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="CurrentLiabilitiesAssociatedWithPuttableNonControllingInterests" id="upg_CurrentLiabilitiesAssociatedWithPuttableNonControllingInterests" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="IncreaseDecreaseThroughCurentYearProfitAndOtherComprehensiveIncomeOfNonControllingInterestsWithPutOption" id="upg_IncreaseDecreaseThroughCurentYearProfitAndOtherComprehensiveIncomeOfNonControllingInterestsWithPutOption" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseThroughChangesInCarryingValueOfLiabilitiesAssociatedWithPuttableNonControllingInterests" id="upg_IncreaseDecreaseThroughChangesInCarryingValueOfLiabilitiesAssociatedWithPuttableNonControllingInterests" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="OtherReserve" id="upg_OtherReserve" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="IncreaseDecreaseInCashClassifiedWithinCurrentAssetsHeldForSale" id="upg_IncreaseDecreaseInCashClassifiedWithinCurrentAssetsHeldForSale" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInCashAndCashEquivalentsIncludingCashClassifiedWithinCurrentAssetsHeldForSale" id="upg_IncreaseDecreaseInCashAndCashEquivalentsIncludingCashClassifiedWithinCurrentAssetsHeldForSale" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="DigitalServicesRevenues" id="upg_DigitalServicesRevenues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="DigitalServicesCostOfServices" id="upg_DigitalServicesCostOfServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="DigitalServicesGrossProfit" id="upg_DigitalServicesGrossProfit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="TraditionalCommunicationServicesRevenues" id="upg_TraditionalCommunicationServicesRevenues" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="TraditionalCommunicationServicesCostOfServices" id="upg_TraditionalCommunicationServicesCostOfServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="TraditionalCommunicationServicesGrossProfit" id="upg_TraditionalCommunicationServicesGrossProfit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="NetFinancialIncomeFromClientMoney" id="upg_NetFinancialIncomeFromClientMoney" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslationDiscontinuedOperations" id="upg_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslationDiscontinuedOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="RestrictedCashRelatedToClientMoney" id="upg_RestrictedCashRelatedToClientMoney" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element name="CurrentLiabilitiesRelatedToClientMoney" id="upg_CurrentLiabilitiesRelatedToClientMoney" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="IncreaseDecreaseThroughReleaseOfNonControllingInterestsDueToAcquisitionOfAdditionalSharesInSerbianEntity" id="upg_IncreaseDecreaseThroughReleaseOfNonControllingInterestsDueToAcquisitionOfAdditionalSharesInSerbianEntity" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsForGainLossOnRemeasurementAtFairValueLessCostsToSellForDisposalGroups" id="upg_AdjustmentsForGainLossOnRemeasurementAtFairValueLessCostsToSellForDisposalGroups" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsForDeferredIncomeTaxExpense" id="upg_AdjustmentsForDeferredIncomeTaxExpense" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="AdjustmentsForDecreaseIncreaseInTradeReceivablesAndContractAssets" id="upg_AdjustmentsForDecreaseIncreaseInTradeReceivablesAndContractAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="RepaymentsOfFranciscoPartnersLoansAndBorrowingsClassifiedAsFinancingActivities" id="upg_RepaymentsOfFranciscoPartnersLoansAndBorrowingsClassifiedAsFinancingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="RepaymentsOfOtherLoansAndBorrowingsClassifiedAsFinancingActivities" id="upg_RepaymentsOfOtherLoansAndBorrowingsClassifiedAsFinancingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="InterestReceivedClassifiedAsFinancingActivities" id="upg_InterestReceivedClassifiedAsFinancingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="InterestPaidOnFranciscoPartnersLoansAndBorrowingsClassifiedAsFinancingActivities" id="upg_InterestPaidOnFranciscoPartnersLoansAndBorrowingsClassifiedAsFinancingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="InterestPaidOnLoansBorrowingsAndLeasingsClassifiedAsFinancingActivities" id="upg_InterestPaidOnLoansBorrowingsAndLeasingsClassifiedAsFinancingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="IncreaseDecreaseInCashDueToChangeInConsolidationRange" id="upg_IncreaseDecreaseInCashDueToChangeInConsolidationRange" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslationContinuingOperations" id="upg_OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslationContinuingOperations" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOfOtherCurrentAssetsRelatedToClientMoneyExplanatory" id="upg_DisclosureOfOtherCurrentAssetsRelatedToClientMoneyExplanatory" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" abstract="false" xbrli:periodType="duration" />
</xsd:schema>