<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:oef="http://xbrl.sec.gov/oef/2025" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dei="http://xbrl.sec.gov/dei/2025" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" xmlns:xlink="http://www.w3.org/1999/xlink" targetNamespace="http://www.MFS.com/20260228" elementFormDefault="qualified" xsi:schemaLocation="http://www.xbrl.org/2006/ref http://www.xbrl.org/2006/ref-2006-02-27.xsd" xmlns:cik0002018846="http://www.MFS.com/20260228">
	<xs:annotation>
		<xs:appinfo>
			<link:linkbaseRef xlink:type="simple" xlink:href="c485bpos-20260518_lab.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="c485bpos-20260518_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="c485bpos-20260518_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" />
			<link:roleType roleURI="http://www.MFS.com/20260228/role/DocumentAndEntityInformation1" id="DocumentAndEntityInformation1">
				<link:definition>010000 - Document - Document and Entity Information {Elements}</link:definition>
				<link:usedOn>link:presentationLink</link:usedOn>
				<link:usedOn>link:calculationLink</link:usedOn>
				<link:usedOn>link:definitionLink</link:usedOn>
			</link:roleType>
			<link:roleType roleURI="http://www.MFS.com/20260228/role/RRDetailData2" id="RRDetailData2">
				<link:definition>020102 - Disclosure - Risk/Return Detail Data (MFS Active International Value ETF) {Elements}</link:definition>
				<link:usedOn>link:presentationLink</link:usedOn>
				<link:usedOn>link:calculationLink</link:usedOn>
				<link:usedOn>link:definitionLink</link:usedOn>
			</link:roleType>
			<link:roleType roleURI="http://www.MFS.com/20260228/role/RRRiskTable3" id="RRRiskTable3">
				<link:definition>020101 - Schedule - Risk Table {Transposed}</link:definition>
				<link:usedOn>link:presentationLink</link:usedOn>
				<link:usedOn>link:calculationLink</link:usedOn>
				<link:usedOn>link:definitionLink</link:usedOn>
			</link:roleType>
			<link:roleType roleURI="http://www.MFS.com/20260228/role/RRDetailData4" id="RRDetailData4">
				<link:definition>020104 - Disclosure - Risk/Return Detail Data (MFS Blended Research Small-Mid Cap ETF) {Elements}</link:definition>
				<link:usedOn>link:presentationLink</link:usedOn>
				<link:usedOn>link:calculationLink</link:usedOn>
				<link:usedOn>link:definitionLink</link:usedOn>
			</link:roleType>
			<link:roleType roleURI="http://www.MFS.com/20260228/role/RRRiskTable5" id="RRRiskTable5">
				<link:definition>020101 - Schedule - Risk Table {Transposed}</link:definition>
				<link:usedOn>link:presentationLink</link:usedOn>
				<link:usedOn>link:calculationLink</link:usedOn>
				<link:usedOn>link:definitionLink</link:usedOn>
			</link:roleType>
			<link:roleType roleURI="http://www.MFS.com/20260228/role/RRCustomRiskRole6" id="RRCustomRiskRole6">
				<link:definition>010004 - Schedule - Investment Risks {Unlabeled}</link:definition>
				<link:usedOn>link:presentationLink</link:usedOn>
				<link:usedOn>link:calculationLink</link:usedOn>
				<link:usedOn>link:definitionLink</link:usedOn>
			</link:roleType>
		</xs:appinfo>
	</xs:annotation>
	<xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
	<xs:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd" />
	<xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
	<xs:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
	<xs:import namespace="http://xbrl.sec.gov/country-def/2025" schemaLocation="https://xbrl.sec.gov/country/2025/country-2025_def.xsd" />
	<xs:import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd" />
	<xs:import namespace="http://xbrl.sec.gov/fnd-oef/2025" schemaLocation="https://xbrl.sec.gov/fnd/2025/fnd-oef-2025.xsd" />
	<xs:element name="S000104938Summary1Member" id="cik0002018846_S000104938Summary1Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="S000104938Member" id="cik0002018846_S000104938Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="C000275596Member" id="cik0002018846_C000275596Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="PrincipalRisks2Member" id="cik0002018846_PrincipalRisks2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="InvestmentSelectionRisk2Member" id="cik0002018846_InvestmentSelectionRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="EquityMarketRiskCompanyRisk2Member" id="cik0002018846_EquityMarketRiskCompanyRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="ValueCompanyRisk2Member" id="cik0002018846_ValueCompanyRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="ForeignRisk2Member" id="cik0002018846_ForeignRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="EmergingMarketsRisk2Member" id="cik0002018846_EmergingMarketsRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="CurrencyRisk2Member" id="cik0002018846_CurrencyRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="FocusRisk2Member" id="cik0002018846_FocusRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="LiquidityRisk2Member" id="cik0002018846_LiquidityRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="FluctuationofNetAssetValueandSharePriceRisk2Member" id="cik0002018846_FluctuationofNetAssetValueandSharePriceRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="AuthorizedParticipantRisks2Member" id="cik0002018846_AuthorizedParticipantRisks2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="TradingIssuesRisk2Member" id="cik0002018846_TradingIssuesRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="CashTransactionsRisk2Member" id="cik0002018846_CashTransactionsRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="S000104939Summary2Member" id="cik0002018846_S000104939Summary2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="S000104939Member" id="cik0002018846_S000104939Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="C000275597Member" id="cik0002018846_C000275597Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="GrowthCompanyRisk2Member" id="cik0002018846_GrowthCompanyRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="SmalltoMediumCapRisk2Member" id="cik0002018846_SmalltoMediumCapRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="InvestmentStrategyRisk2Member" id="cik0002018846_InvestmentStrategyRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="REITsRisk2Member" id="cik0002018846_REITsRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="CapacityRisk2Member" id="cik0002018846_CapacityRisk2Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
	<xs:element name="CustomRisksTableTextBlock" id="cik0002018846_CustomRisksTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" />
</xs:schema>
