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        <ManagementAndGeneralAmt>604664</ManagementAndGeneralAmt>
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      <PensionPlanContributionsGrp>
        <TotalAmt>243898</TotalAmt>
        <ManagementAndGeneralAmt>243898</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>220376</ManagementAndGeneralAmt>
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      <PayrollTaxesGrp>
        <TotalAmt>72379</TotalAmt>
        <ManagementAndGeneralAmt>72379</ManagementAndGeneralAmt>
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      <FeesForServicesManagementGrp>
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      <FeesForServicesLegalGrp>
        <TotalAmt>73434</TotalAmt>
        <ManagementAndGeneralAmt>73434</ManagementAndGeneralAmt>
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      <FeesForServicesAccountingGrp>
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        <ManagementAndGeneralAmt>35441</ManagementAndGeneralAmt>
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      <FeesForServicesLobbyingGrp>
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      <FeesForServicesProfFundraising></FeesForServicesProfFundraising>
      <FeesForSrvcInvstMgmntFeesGrp>
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        <ManagementAndGeneralAmt>513920</ManagementAndGeneralAmt>
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      <FeesForServicesOtherGrp>
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      <AdvertisingGrp>
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      <OfficeExpensesGrp>
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        <ManagementAndGeneralAmt>373285</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>244994</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>42127</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>1539</ManagementAndGeneralAmt>
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        <ManagementAndGeneralAmt>10789</ManagementAndGeneralAmt>
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        <EOYAmt>59273</EOYAmt>
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        <EOYAmt>135023453</EOYAmt>
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      <AccountsPayableAccrExpnssGrp>
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        <EOYAmt>2131320</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>2480944</BOYAmt>
        <EOYAmt>2173932</EOYAmt>
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      <OrgDoesNotFollowFASB117Ind>X</OrgDoesNotFollowFASB117Ind>
      <RtnEarnEndowmentIncmOthFndsGrp>
        <BOYAmt>139944531</BOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>139944531</BOYAmt>
        <EOYAmt>132849521</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>142425475</BOYAmt>
        <EOYAmt>135023453</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>-7056901</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>-38109</NetUnrlzdGainsLossesInvstAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
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      <InclEscrowCustodialAcctLiabInd>false</InclEscrowCustodialAcctLiabInd>
      <OtherSecuritiesGrp>
        <Desc>Financial derivatives and other financial products</Desc>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>Closely-held equity interests</Desc>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>Lord Abbett Short Duration Fund</Desc>
        <BookValueAmt>25999679</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
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      <OtherSecuritiesGrp>
        <Desc>Lord Abbett Floating Rate Fund</Desc>
        <BookValueAmt>11474790</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <OtherSecuritiesGrp>
        <Desc>Lord Abbett Bond Debenture Fund</Desc>
        <BookValueAmt>13700185</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
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      <OtherSecuritiesGrp>
        <Desc>Janus Institutional Intl Equity</Desc>
        <BookValueAmt>23358766</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
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      <OtherSecuritiesGrp>
        <Desc>BNY Mellon AFL-CIO SL Stock Index Fund</Desc>
        <BookValueAmt>27380299</BookValueAmt>
        <MethodValuationCd>F</MethodValuationCd>
      </OtherSecuritiesGrp>
      <TotalBookValueSecuritiesAmt>101913719</TotalBookValueSecuritiesAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>Federal income taxes</Desc>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Employer Security Deposit</Desc>
        <Amt>2051295</Amt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>Unapplied Employers Contributions</Desc>
        <Amt>80025</Amt>
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      <OtherLiabilitiesOrgGrp>
        <Desc>Securities Purchased</Desc>
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      <OtherLiabilitiesOrgGrp>
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      <TotalLiabilityAmt>2131320</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>83583099</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-38109</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>-38109</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>83621208</RevenueSubtotalAmt>
      <InvestmentExpensesNotIncldAmt>513920</InvestmentExpensesNotIncldAmt>
      <RevenueNotReportedFinclStmtAmt>513920</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>84135128</TotalRevenuePerForm990Amt>
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      <ExpensesSubtotalAmt>90678109</ExpensesSubtotalAmt>
      <InvestmentExpensesNotIncld2Amt>513920</InvestmentExpensesNotIncld2Amt>
      <ExpensesNotRptFinclStmtAmt>513920</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>91192029</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>X 2</FormAndLineReferenceDesc>
        <ExplanationTxt>The Trustees have evaluated the tax positions taken by the Fund and have concluded that as of December 31, 2021, there are no uncertain positions taken or expected to be taken, that would require the recognition of a liability or asset or disclosure in the financial statements. The Fund is subject to routine audits by taxing jurisdictions until the applicable statute of limitations expires however, there are currently no audits for any tax periods in progress.</ExplanationTxt>
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      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Kevin J Driscoll</PersonNm>
        <TitleTxt>Executive Administrator</TitleTxt>
        <BaseCompensationFilingOrgAmt>47883</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>397359</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>33589</OtherCompensationRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>46117</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>47883</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>477065</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>William J Turnbull</PersonNm>
        <TitleTxt>Executive Administrator</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>314153</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>59132</OtherCompensationRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>46655</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>19647</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>419940</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Steve Cuadra</PersonNm>
        <TitleTxt>Education Director</TitleTxt>
        <CompensationBasedOnRltdOrgsAmt>208948</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>8750</OtherCompensationRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>63975</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationRltdOrgsAmt>281673</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Peter Ruffner</PersonNm>
        <TitleTxt>Assistant Administrator</TitleTxt>
        <BaseCompensationFilingOrgAmt>90054</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>111421</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>23661</OtherCompensationRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>16773</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>90054</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>151855</TotalCompensationRltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Daniel Knights</PersonNm>
        <TitleTxt>Education Instructor</TitleTxt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Stephen Powers</PersonNm>
        <TitleTxt>Education Instructor</TitleTxt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>James Ippolito</PersonNm>
        <TitleTxt>Assistant Administrator</TitleTxt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>James C White</PersonNm>
        <TitleTxt>Assistant Administrator</TitleTxt>
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        <NontaxableBenefitsRltdOrgsAmt>35432</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>40445</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>162114</TotalCompensationRltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Sean Driscoll</PersonNm>
        <TitleTxt>IT Director</TitleTxt>
        <BaseCompensationFilingOrgAmt>42393</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>110191</CompensationBasedOnRltdOrgsAmt>
        <OtherCompensationRltdOrgsAmt>22593</OtherCompensationRltdOrgsAmt>
        <NontaxableBenefitsRltdOrgsAmt>25500</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>42393</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>158284</TotalCompensationRltdOrgsAmt>
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        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 11A</FormAndLineReferenceDesc>
        <ExplanationTxt>This tax return was prepared by staff and reviewed by the Funds Executive Administrator, who is a CPA. Then it was provided to the Funds auditors for review and approval. Lastly, it is provided to a member of the Board of Directors for review and signature.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 15AB</FormAndLineReferenceDesc>
        <ExplanationTxt>The Executive Administrator of the Trust Funds negotiates with the Chairman and Co-Chairman of each Fund and agree to an increase in wages for all staff within the parameters set by the collective bargaining agreement.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, Line 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>The Fund is subject to ERISA and the Trustees conform to its regulations. Each year, Trustees sign a statement which affirms that such person has received a copy of the Conflict of Interest Policy and has read and understands the Policy. Also, the Trustees agree to comply with the Policy and understands that the Plan is a tax-exempt organization.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, Line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>As required by ERISA, the Funds governing documents, policies, financial statements and tax returns are available upon request by writing to the Fund Office and requesting a copy. This return was not filed on time and granted an extension to acquire all the information needed to complete and file an accurate return.</ExplanationTxt>
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        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
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        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Steamfitters' Industry Security Benefit Fund</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>136149681</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501c5</ExemptCodeSectionTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Steamfitters' Industry Educational Fund</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>131919703</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Steamfitters' Industry Vacation Plan</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>136149682</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501c9</ExemptCodeSectionTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Steamfitters' Industry Supplemental Retirement Plan</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>133917806</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>401a</ExemptCodeSectionTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>The Steamfitting Industry Labor Managment Coop Comm</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
        <EIN>367498676</EIN>
        <PrimaryActivitiesTxt>ERISA Plan</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>NY</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501c5</ExemptCodeSectionTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
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        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>27-08 40th Avenue 2nd floor</AddressLine1Txt>
          <CityNm>Long Island City</CityNm>
          <StateAbbreviationCd>NY</StateAbbreviationCd>
          <ZIPCd>11101</ZIPCd>
        </USAddress>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>The Metal Trades Branch Local 638 Welfare Fund</BusinessNameLine1Txt>
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        <USAddress>
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          <CityNm>Long Island City</CityNm>
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          <ZIPCd>11101</ZIPCd>
        </USAddress>
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        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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