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<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" 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">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_ck0001540305_GeopoliticalRiskMember_label_en-US" xlink:label="lab_ck0001540305_GeopoliticalRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geopolitical Risk Member</link:label>
    <link:label id="lab_ck0001540305_GeopoliticalRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_GeopoliticalRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Geopolitical Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_GeopoliticalRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_GeopoliticalRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_GeopoliticalRiskMember" xlink:to="lab_ck0001540305_GeopoliticalRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DistributionRiskMember_label_en-US" xlink:label="lab_ck0001540305_DistributionRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Distribution Risk Member</link:label>
    <link:label id="lab_ck0001540305_DistributionRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DistributionRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Distribution Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DistributionRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_DistributionRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DistributionRiskMember" xlink:to="lab_ck0001540305_DistributionRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskSwapAgreementsRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskSwapAgreementsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Swap Agreements Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskSwapAgreementsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskSwapAgreementsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Swap Agreements Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskSwapAgreementsRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_DerivativesRiskSwapAgreementsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskSwapAgreementsRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskSwapAgreementsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskCoveredCallOptionsRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskCoveredCallOptionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Covered Call Options Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskCoveredCallOptionsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskCoveredCallOptionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Covered Call Options Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskCoveredCallOptionsRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_DerivativesRiskCoveredCallOptionsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskCoveredCallOptionsRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskCoveredCallOptionsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SingleIssuerRiskMember_label_en-US" xlink:label="lab_ck0001540305_SingleIssuerRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Single Issuer Risk Member</link:label>
    <link:label id="lab_ck0001540305_SingleIssuerRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SingleIssuerRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Single Issuer Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SingleIssuerRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_SingleIssuerRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SingleIssuerRiskMember" xlink:to="lab_ck0001540305_SingleIssuerRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_EmergingMarketsRiskMember_label_en-US" xlink:label="lab_ck0001540305_EmergingMarketsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Emerging Markets Risk Member</link:label>
    <link:label id="lab_ck0001540305_EmergingMarketsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_EmergingMarketsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Emerging Markets Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_EmergingMarketsRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_EmergingMarketsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_EmergingMarketsRiskMember" xlink:to="lab_ck0001540305_EmergingMarketsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksTradingRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksTradingRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Trading Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksTradingRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksTradingRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Trading Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksTradingRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_ETFRisksTradingRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksTradingRiskMember" xlink:to="lab_ck0001540305_ETFRisksTradingRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DepositaryReceiptsRiskMember_label_en-US" xlink:label="lab_ck0001540305_DepositaryReceiptsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depositary Receipts Risk Member</link:label>
    <link:label id="lab_ck0001540305_DepositaryReceiptsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DepositaryReceiptsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Depositary Receipts Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DepositaryReceiptsRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_DepositaryReceiptsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DepositaryReceiptsRiskMember" xlink:to="lab_ck0001540305_DepositaryReceiptsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, FLEX Options Correlation Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, FLEX Options Correlation Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskFLEXOptionsCorrelationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_CollateralSecuritiesRiskMember_label_en-US" xlink:label="lab_ck0001540305_CollateralSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Collateral Securities Risk Member</link:label>
    <link:label id="lab_ck0001540305_CollateralSecuritiesRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_CollateralSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Collateral Securities Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_CollateralSecuritiesRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_CollateralSecuritiesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_CollateralSecuritiesRiskMember" xlink:to="lab_ck0001540305_CollateralSecuritiesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_TaxRiskMember_label_en-US" xlink:label="lab_ck0001540305_TaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Risk Member</link:label>
    <link:label id="lab_ck0001540305_TaxRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_TaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tax Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_TaxRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_TaxRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_TaxRiskMember" xlink:to="lab_ck0001540305_TaxRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_LimitedUpsideRiskMember_label_en-US" xlink:label="lab_ck0001540305_LimitedUpsideRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Limited Upside Risk Member</link:label>
    <link:label id="lab_ck0001540305_LimitedUpsideRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_LimitedUpsideRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Limited Upside Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_LimitedUpsideRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_LimitedUpsideRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_LimitedUpsideRiskMember" xlink:to="lab_ck0001540305_LimitedUpsideRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, FLEX Options Liquidity Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, FLEX Options Liquidity Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskFLEXOptionsLiquidityRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ForeignSecuritiesRiskMember_label_en-US" xlink:label="lab_ck0001540305_ForeignSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Foreign Securities Risk Member</link:label>
    <link:label id="lab_ck0001540305_ForeignSecuritiesRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ForeignSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Foreign Securities Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ForeignSecuritiesRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_ForeignSecuritiesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ForeignSecuritiesRiskMember" xlink:to="lab_ck0001540305_ForeignSecuritiesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ReturnOfCapitalRiskMember_label_en-US" xlink:label="lab_ck0001540305_ReturnOfCapitalRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Return Of Capital Risk Member</link:label>
    <link:label id="lab_ck0001540305_ReturnOfCapitalRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ReturnOfCapitalRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Return Of Capital Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ReturnOfCapitalRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_ReturnOfCapitalRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ReturnOfCapitalRiskMember" xlink:to="lab_ck0001540305_ReturnOfCapitalRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskOptionsRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskOptionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Options Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskOptionsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskOptionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Options Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskOptionsRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_DerivativesRiskOptionsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskOptionsRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskOptionsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_InvestmentCompanyRiskMember_label_en-US" xlink:label="lab_ck0001540305_InvestmentCompanyRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Company Risk Member</link:label>
    <link:label id="lab_ck0001540305_InvestmentCompanyRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_InvestmentCompanyRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investment Company Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_InvestmentCompanyRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_InvestmentCompanyRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_InvestmentCompanyRiskMember" xlink:to="lab_ck0001540305_InvestmentCompanyRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_S000096675Member_label_en-US" xlink:label="lab_ck0001540305_S000096675Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defiance DRAM Option Income ETF</link:label>
    <link:label id="lab_ck0001540305_S000096675Member_documentation_en-US" xlink:label="lab_ck0001540305_S000096675Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000096675 C000265575 Defiance DRAM Option Income ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_S000096675Member" xlink:href="ck0001540305-20260727.xsd#ck0001540305_S000096675Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_S000096675Member" xlink:to="lab_ck0001540305_S000096675Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_SectorRiskMember_label_en-US" xlink:label="lab_ck0001540305_SectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sector Risk Member</link:label>
    <link:label id="lab_ck0001540305_SectorRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_SectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sector Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_SectorRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_SectorRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_SectorRiskMember" xlink:to="lab_ck0001540305_SectorRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Shares May Trade At Prices Other Than NAV Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:to="lab_ck0001540305_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_LiquidityAndValuationRiskMember_label_en-US" xlink:label="lab_ck0001540305_LiquidityAndValuationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liquidity And Valuation Risk Member</link:label>
    <link:label id="lab_ck0001540305_LiquidityAndValuationRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_LiquidityAndValuationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Liquidity And Valuation Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_LiquidityAndValuationRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_LiquidityAndValuationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_LiquidityAndValuationRiskMember" xlink:to="lab_ck0001540305_LiquidityAndValuationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Concentration Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Authorized Participants, Market Makers, And Liquidity Providers Concentration Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:to="lab_ck0001540305_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_GeographicInvestmentRiskMember_label_en-US" xlink:label="lab_ck0001540305_GeographicInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographic Investment Risk Member</link:label>
    <link:label id="lab_ck0001540305_GeographicInvestmentRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_GeographicInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Geographic Investment Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_GeographicInvestmentRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_GeographicInvestmentRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_GeographicInvestmentRiskMember" xlink:to="lab_ck0001540305_GeographicInvestmentRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInSouthKoreaRiskMember_label_en-US" xlink:label="lab_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInSouthKoreaRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographic Investment Risk, Risks Of Investing In South Korea Risk Member</link:label>
    <link:label id="lab_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInSouthKoreaRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInSouthKoreaRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Geographic Investment Risk, Risks Of Investing In South Korea Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInSouthKoreaRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_GeographicInvestmentRiskRisksOfInvestingInSouthKoreaRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInSouthKoreaRiskMember" xlink:to="lab_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInSouthKoreaRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ConcentrationRiskSemiconductorsIndustryRiskMember_label_en-US" xlink:label="lab_ck0001540305_ConcentrationRiskSemiconductorsIndustryRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Concentration Risk, Semiconductors Industry Risk Member</link:label>
    <link:label id="lab_ck0001540305_ConcentrationRiskSemiconductorsIndustryRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ConcentrationRiskSemiconductorsIndustryRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Concentration Risk, Semiconductors Industry Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ConcentrationRiskSemiconductorsIndustryRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_ConcentrationRiskSemiconductorsIndustryRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ConcentrationRiskSemiconductorsIndustryRiskMember" xlink:to="lab_ck0001540305_ConcentrationRiskSemiconductorsIndustryRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_CybersecurityRiskMember_label_en-US" xlink:label="lab_ck0001540305_CybersecurityRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cybersecurity Risk Member</link:label>
    <link:label id="lab_ck0001540305_CybersecurityRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_CybersecurityRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cybersecurity Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_CybersecurityRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_CybersecurityRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_CybersecurityRiskMember" xlink:to="lab_ck0001540305_CybersecurityRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskDerivativesTaxRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskDerivativesTaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Derivatives Tax Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskDerivativesTaxRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskDerivativesTaxRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Derivatives Tax Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskDerivativesTaxRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_DerivativesRiskDerivativesTaxRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskDerivativesTaxRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskDerivativesTaxRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_NAVErosionRiskDueToDistributionsRiskMember_label_en-US" xlink:label="lab_ck0001540305_NAVErosionRiskDueToDistributionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">NAV Erosion Risk Due To Distributions Risk Member</link:label>
    <link:label id="lab_ck0001540305_NAVErosionRiskDueToDistributionsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_NAVErosionRiskDueToDistributionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">NAV Erosion Risk Due To Distributions Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_NAVErosionRiskDueToDistributionsRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_NAVErosionRiskDueToDistributionsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_NAVErosionRiskDueToDistributionsRiskMember" xlink:to="lab_ck0001540305_NAVErosionRiskDueToDistributionsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskCounterpartyRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskCounterpartyRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Counterparty Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskCounterpartyRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskCounterpartyRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Counterparty Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskCounterpartyRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_DerivativesRiskCounterpartyRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskCounterpartyRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskCounterpartyRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskForwardContractsRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskForwardContractsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Forward Contracts Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskForwardContractsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskForwardContractsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk, Forward Contracts Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskForwardContractsRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_DerivativesRiskForwardContractsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskForwardContractsRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskForwardContractsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_C000265575Member_label_en-US" xlink:label="lab_ck0001540305_C000265575Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defiance DRAM Option Income ETF Class</link:label>
    <link:label id="lab_ck0001540305_C000265575Member_documentation_en-US" xlink:label="lab_ck0001540305_C000265575Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">S000096675 C000265575 Defiance DRAM Option Income ETF</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_C000265575Member" xlink:href="ck0001540305-20260727.xsd#ck0001540305_C000265575Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_C000265575Member" xlink:to="lab_ck0001540305_C000265575Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksCashRedemptionRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksCashRedemptionRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Cash Redemption Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksCashRedemptionRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksCashRedemptionRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Cash Redemption Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksCashRedemptionRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_ETFRisksCashRedemptionRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksCashRedemptionRiskMember" xlink:to="lab_ck0001540305_ETFRisksCashRedemptionRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInAsiaRiskMember_label_en-US" xlink:label="lab_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInAsiaRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographic Investment Risk, Risks Of Investing In Asia Risk Member</link:label>
    <link:label id="lab_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInAsiaRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInAsiaRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Geographic Investment Risk, Risks Of Investing In Asia Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInAsiaRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_GeographicInvestmentRiskRisksOfInvestingInAsiaRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInAsiaRiskMember" xlink:to="lab_ck0001540305_GeographicInvestmentRiskRisksOfInvestingInAsiaRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_LargeCapitalizationInvestingRiskMember_label_en-US" xlink:label="lab_ck0001540305_LargeCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Large-Capitalization Investing Risk Member</link:label>
    <link:label id="lab_ck0001540305_LargeCapitalizationInvestingRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_LargeCapitalizationInvestingRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Large-Capitalization Investing Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_LargeCapitalizationInvestingRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_LargeCapitalizationInvestingRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_LargeCapitalizationInvestingRiskMember" xlink:to="lab_ck0001540305_LargeCapitalizationInvestingRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_HighPortfolioTurnoverRiskMember_label_en-US" xlink:label="lab_ck0001540305_HighPortfolioTurnoverRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">High Portfolio Turnover Risk Member</link:label>
    <link:label id="lab_ck0001540305_HighPortfolioTurnoverRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_HighPortfolioTurnoverRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">High Portfolio Turnover Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_HighPortfolioTurnoverRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_HighPortfolioTurnoverRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_HighPortfolioTurnoverRiskMember" xlink:to="lab_ck0001540305_HighPortfolioTurnoverRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_ETFRisksMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksMember" xlink:to="lab_ck0001540305_ETFRisksMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_MarketRiskMember_label_en-US" xlink:label="lab_ck0001540305_MarketRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Market Risk Member</link:label>
    <link:label id="lab_ck0001540305_MarketRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_MarketRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Market Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_MarketRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_MarketRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_MarketRiskMember" xlink:to="lab_ck0001540305_MarketRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_InterestRateRisk1Member_label_en-US" xlink:label="lab_ck0001540305_InterestRateRisk1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Rate Risk 1 Member</link:label>
    <link:label id="lab_ck0001540305_InterestRateRisk1Member_documentation_en-US" xlink:label="lab_ck0001540305_InterestRateRisk1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest Rate Risk 1 Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_InterestRateRisk1Member" xlink:href="ck0001540305-20260727.xsd#ck0001540305_InterestRateRisk1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_InterestRateRisk1Member" xlink:to="lab_ck0001540305_InterestRateRisk1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_CapitalControlsAndSanctionsRiskMember_label_en-US" xlink:label="lab_ck0001540305_CapitalControlsAndSanctionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Controls And Sanctions Risk Member</link:label>
    <link:label id="lab_ck0001540305_CapitalControlsAndSanctionsRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_CapitalControlsAndSanctionsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Capital Controls And Sanctions Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_CapitalControlsAndSanctionsRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_CapitalControlsAndSanctionsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_CapitalControlsAndSanctionsRiskMember" xlink:to="lab_ck0001540305_CapitalControlsAndSanctionsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember_label_en-US" xlink:label="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Costs Of Buying Or Selling Shares Risk Member</link:label>
    <link:label id="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Costs Of Buying Or Selling Shares Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:to="lab_ck0001540305_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_PreferredSecuritiesRiskMember_label_en-US" xlink:label="lab_ck0001540305_PreferredSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Securities Risk Member</link:label>
    <link:label id="lab_ck0001540305_PreferredSecuritiesRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_PreferredSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Preferred Securities Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_PreferredSecuritiesRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_PreferredSecuritiesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_PreferredSecuritiesRiskMember" xlink:to="lab_ck0001540305_PreferredSecuritiesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_DerivativesRiskMember_label_en-US" xlink:label="lab_ck0001540305_DerivativesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives Risk Member</link:label>
    <link:label id="lab_ck0001540305_DerivativesRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_DerivativesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_DerivativesRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_DerivativesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001540305_DerivativesRiskMember" xlink:to="lab_ck0001540305_DerivativesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001540305_CurrencyExchangeRateRiskMember_label_en-US" xlink:label="lab_ck0001540305_CurrencyExchangeRateRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Currency Exchange Rate Risk Member</link:label>
    <link:label id="lab_ck0001540305_CurrencyExchangeRateRiskMember_documentation_en-US" xlink:label="lab_ck0001540305_CurrencyExchangeRateRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Currency Exchange Rate Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001540305_CurrencyExchangeRateRiskMember" xlink:href="ck0001540305-20260727.xsd#ck0001540305_CurrencyExchangeRateRiskMember"/>
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