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      <CYMinus4YrEndwmtFundGrp />
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      <OtherLiabilitiesOrgGrp>
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      <FootnoteTextInd>X</FootnoteTextInd>
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      <RevenueNotReportedFinclStmtAmt>41074</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>13504583</TotalRevenuePerForm990Amt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE D, PART XII, LINE 4B - OTHER ADJUSTMENTS:</FormAndLineReferenceDesc>
        <ExplanationTxt>Change in benefit obligations</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PLAN'S ADMINISTRATOR HAS ANALYZED THE TAX POSITIONS TAKEN BY THE PLAN AND HAS CONCLUDED THAT, AS OF DECEMBER 31, 2022, THERE ARE NO UNCERTAIN POSITIONS TAKEN OR EXPECTED TO BE TAKEN THAT WOULD REQUIRE RECOGNITION OF A LIABILITY OR DISCLOSURE IN THE FINANCIAL STATEMENTS. THE PLAN IS SUBJECT TO ROUTINE AUDITS BY THE TAXING JURISDICTIONS; HOWEVER, THERE ARE CURRENTLY NO AUDITS FOR ANY TAX PERIODS IN PROGRESS.</ExplanationTxt>
      </SupplementalInformationDetail>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PLAN CONTRACTED WITH BENESYS ADMINISTRATORS TO PROVIDE ADMINISTRATIVE SERVICES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 8B:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF TRUSTEES DOES NOT CURRENTLY HAVE ANY COMMITTEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B:</FormAndLineReferenceDesc>
        <ExplanationTxt>A COPY OF FORM 990 IS PRESENTED TO EACH OF THE VOTING MEMBERS OF THE BOARD OF TRUSTEES FOR THEIR REVIEW AND COMMENT PRIOR TO FILING THE RETURN WITH THE IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C:</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL TRUSTEES OF THE PLAN HAVE RESPONSIBILITIES TO DISCLOSE ANY CONFLICT OF INTEREST ON AN ANNUAL BASIS. THE PLAN MANAGER AND CHAIRMAN ARE RESPONSIBLE FOR MONITORING THE CONFLICT-OF-INTEREST POLICY AND RESOLUTION OF ANY CONFLICTS. IF THE PLAN MANAGER OR CHAIRMAN HAS REASONABLE CAUSE TO BELIEVE A TRUSTEE, OFFICER OR MANAGEMENT EMPLOYEE HAS FAILED TO DISCLOSE ACTUAL OR POSSIBLE CONFLICTS OF INTEREST, THE INDIVIDUAL WILL HAVE THE OPPORTUNITY TO EXPLAIN THE ALLEGED FAILURE TO DISCLOSE. IF DETERMINED THAT THE INDIVIDUAL HAS FAILED TO DISCLOSE AN ACTUAL OR POSSIBLE CONFLICT OF INTEREST, APPROPRIATE DISCIPLINARY AND CORRECTIVE ACTION WILL BE TAKEN.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT-OF-INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VII, SECTION A, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>TRUSTEES ARE NOT COMPENSATED BY THE TRUST. COMPENSATION PAID TO TRUSTEES EMPLOYED BY OTHER RELATED ORGANIZATIONS IS REPORTED ON THE FORM 990 FILED WITH THE INTERNAL REVENUE SERVICE BY THE RELATED TAX-EXEMPT ORGANIZATION. IF YOU WOULD LIKE ADDITIONAL INFORMATION, PLEASE CONTACT THE THIRD-PARTY ADMINISTRATOR, BENESYS ADMINISTRATORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION HAS A BOARD OF TRUSTEES THAT ASSUMES RESPONSIBILITY FOR OVERSIGHT OF THE AUDIT OF ITS FINANCIAL STATEMENTS AND SELECTION OF AN INDEPENDENT ACCOUNTANT. THIS PROCESS DID NOT CHANGE.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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        <DisregardedEntityName>
          <BusinessNameLine1Txt>HEAT &amp; FROST INSULATORS OF NORTHERN CA</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>7180 Koll Center Parkway 200</AddressLine1Txt>
          <CityNm>Pleasanton</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94566</ZIPCd>
        </USAddress>
        <EIN>943135861</EIN>
        <PrimaryActivitiesTxt>Preservation</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>CA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(5)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>N/A</PublicCharityStatusTxt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NA</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
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          <BusinessNameLine1Txt>Heat &amp; Frost Insulators &amp; Allied Workers</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
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          <CityNm>Benicia</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART II, IDENTIFICATION OF RELATED TAX-EXEMPT ORGANIZATIONS:</FormAndLineReferenceDesc>
        <ExplanationTxt>NAME, ADDRESS, AND EIN OF RELATED ORGANIZATION: HEAT &amp; FROST INSULATORS OF NORTHERN CA, LOCAL 16 PRESERVATION/TRUST FUND EIN: 94-3135861 7180 KOLL CENTER PARKWAY, #200 PLEASANTON, CA 94566</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE R, IDENTIFICATION OF RELATED ORGANIZATIONS:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FILING ORGANIZATION IS A TAFT-HARTLEY MULTIEMPLOYER TRUST THAT PROVIDES HEALTH AND WELFARE BENEFITS TO ELIGIBLE EMPLOYEES AND THEIR DEPENDENTS. AS OF DECEMBER 31, 2022, THERE ARE APPROXIMATELY 31 EMPLOYERS THAT CONTRIBUTE TO THE TRUST. THE ADMINISTRATIVE OFFICE MAINTAINS A DATABASE OF THESE CONTRIBUTING EMPLOYERS, INCLUDING NAMES, ADDRESSES AND OTHER CONTACT INFORMATION. THE FEDERAL TAX CLASSIFICATION (DISREGARDED ENTITY, TAX-EXEMPT ORGANIZATION, PARTNERSHIP, TAXABLE CORPORATION OR TRUST) FOR EACH CONTRIBUTING EMPLOYER IS NOT ON FILE WITH THE ADMINISTRATIVE OFFICE AND IT COULD NOT BE REASONABLY OBTAINED. AS A RESULT, THE NAMES OF THE CONTRIBUTING EMPLOYERS ARE LISTED ON PART VII BELOW AND NOT ON PARTS II THROUGH IV BY FEDERAL TAX CLASSIFICATION. ALPHA OMEGA MECHANICAL ANNING-JOHNSON COMPANY APPLIED PROCESS COOLING CORP (APPCO) CRITCHFIELD MECHANICAL INC D2 SQUARED INDUSTRIAL SERVICES, LLC DE BELLA MECHANICAL INC DKB INC ECO BAY SERVICES, INC. ENERGY MECHANICAL INSULATI016077010ON HEAT &amp; FROST INSULATORS JATC HEAT &amp; FROST INSULATORS LOC 16 INSULATION SPECIALTIES JD FIRESTOP PROS, INC. KARCHER INSULATION INC KC INSULATION L&amp;S FABCO MECHANICAL INSULATION SERVICES, INC. NORTHERN SERVICES INC. ONYX INSULATION PARC SPECIALTY CONTRACTORS PERFORMANCE CONTRACTING INC PLANT HAZARDOUS SERVICES, INC PRMNC ABTMNT SVC OF CALIFORNIA PROFESSIONAL ASBESTOS REMOVAL RESTEC CONTRACTORS INC RHODIUM INTEGRATED SERVICES, INC. SOUTHWEST SPECIALTY CONTRACTORS TEMPER INSULATION THERMOLD INSULATION TODD COMPANIES PLA WEST COAST MECHANICAL INSULATION</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleR>
  </ReturnData>
</Return>
