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      <CYMinus4YrEndwmtFundGrp />
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      <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, 2024 and 2023, 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>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B:</FormAndLineReferenceDesc>
        <ExplanationTxt>A COPY OF THE FORM 990 WAS PROVIDED TO THE BOARD OF TRUSTEES FOR REVIEW BEFORE IT WAS FILED.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION DOES NOT MAKE ITS GOVERNING DOCUMENTS OR FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC. UPON REQUEST, THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS AND FINANCIAL INFORMATION AVAILABLE TO THE PARTICIPANTS OF THE ORGANIZATION.</ExplanationTxt>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
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        <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 HAS NOT CHANGED.</ExplanationTxt>
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      <SupplementalInformationDetail>
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      <SupplementalInformationDetail>
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      <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, 2024, THERE ARE APPROXIMATELY 143 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. A P I INC A1 INSULATION MECHANICAL, LLC AARC-WEST MECHANICAL INSULATION (USA), LLC AECOM AIS, INC. ALBUQUERQUE INSULATION ANNING-JOHNSON COMPANY APACHE INDUSTRIAL APACHE INDUSTRIAL UNITED, INC APPLIED PROCESS COOLING CORP (APPCO) ARGUS CONTRACTING Arizona Heat &amp; Frost Apprenticeship Training Trust Ark Premium Construction LLC ASBESTOS LOCAL 7 ASBESTOS LOCAL 82 ASBESTOS LOCAL 82 JATC ASBESTOS WORKERS #5 APPRENTICE FUND ATS WELDING BARRACUDA INSULATION BARRE INSULATION BAYSIDE INSULATION CONTRACTORS INC BHI Energy Specialty Services BOMBARD MECHANICAL BOYTER BROTHERS, LLC BRAND ENERGY SERVICE OF CALIFORNIA BRAND SCAFFOLD SERVICES, INC. BRANDSAFWAY C &amp; P CONSTRUCTION DEVELOPMENT CALIFORNIA DEPT OF CORRECTION CALIFORNIA FIRE STOP CRITCHFIELD MECHANICAL INC D &amp; G MECHANICAL INSUL INC D2 INDUSTRIAL SERVICES, LLC D2 SERVICES INC D2 SQUARED INDUSTRIAL SERVICES, LLC DAHL AIR CONDITIONING DAY &amp; ZIMMERMAN NPS DE BELLA MECHANICAL INC DEPT OF WATER &amp; POWER DKB INC Earp Insulation ECCO INSULATION ECO BAY SERVICES, INC. ENERGY MECHANICAL INSULATION ESW PACIFIC MECHANICAL INSUL. EXCEL PACIFIC MECHANICAL INSUL. FARWEST INSULATION CONTRACTING FIBRECO FOREMAC FRONTIER INC. GLOBAL PACIFIC ENVIRONMENTAL INC GLOBAL SCAFFOLD CONSTRUCTION SERVICES HEAT &amp; FROST INSUL APPRENTICE HEAT &amp; FROST INSULATORS HEAT &amp; FROST INSULATORS JATC HEAT &amp; FROST INSULATORS LOC 16 HEAT &amp; FROST INSULATORS LOCAL 135 HEAT &amp; FROST INSULATORS LOCAL 28 HEAT &amp; FROST INSULATORS LOCAL 36 HEAT &amp; FROST INSULATORS LOCAL 5 HEAT &amp; FROST INSULATORS LOCAL 69 HEAT &amp; FROST INSULATORS LOCAL 73 HEAT &amp; FROST INSULATORS LOCAL 76 HECKMAN INC. HOLADAY-PARKS, INC. HUDSON BAY INSULATION IDAHO ENVIRONMENTAL COALITION LLC IMPERIAL SPECIALTY CONTRACTING INDUSTRIAL INSULATION INSULATION CONTRACTING &amp; SUPPLY INSULATION SPECIALTIES INSULATION TECH INC INSUL-TECH INTERMOUNTAIN SPECIALTY CONTRACTING J &amp; J MECHANICAL INSULATION JD FIRESTOP PROS, INC. JEWEL MECHANICAL INSULATION JKAY, INC K FOX INSULATION INC KARBER MECHANICAL INSULATION KARCHER FIRESTOPPING, INC KARCHER INSULATION INC KARCHER INTERIOR SYSTEMS, INC. KC INSULATION KENNER MECHANICAL INSULATION L &amp; L MECHANICAL, INC L &amp; S FABCO LIFE SAFETY SOLUTIONS LOS ALAMOS NATIONAL SECURITY LOS ANGELES COUNTY SHERIFF'S DEPT. LOUIS A ROSER COMPANY M &amp; M MECHANICAL MECHANICAL ENERGY SOLUTION MECHANICAL INSULATING INC MECHANICAL INSULATION SERVICES, INC. MID-VALLEY INSULATING, INC. MISSION SUPPORT TEST SERVICES NAES POWER CONTRACTORS NELSON INSULATION COMPANY-COLORADO OCEAN PARK MECHANICAL P &amp; E INSULATION, INC. PCN3 PERFORMANCE ABATEMENT SVCS PERFORMANCE CONTRACTING PERFORMANCE CONTRACTING GROUP PERFORMANCE CONTRACTING INC PRMNC ABTMNT SVC OF CALIFORNIA PSP GROUP INC PUGET SOUND MECHANICAL INSULATION R D CONWEST CONTRACTORS INC ROGUE MECHANICAL INSULATION RYAN MECHANICAL SAFWAY SERVICES SAFWAY SERVICES INC SAFWAY SERVICES, LLC SCOT-THERM INSULATION SEATTLE ASB WKRS JATC SEATTLE BUILDING &amp; CONSTR SHACK PLUMBING SILVER FALLS INSULATION,LLC SO-CAL INSULATION, INC SOUTH COAST MECHANICAL INSULATION SOUTHWEST SPECIALTY CONTRACTORS SOUTHWEST SPECIALTY CONTRACTORS LLC SUMMIT CONTRACTING, LLC TEMPER INSULATION THE JAMAR COMPANY THERMAL AIR CONDITIONING THERMAX INSULATION, LLC THERMOLD INSULATION TIMISCO MECHANICAL INSULATION LLC TOVIN INSULATION CONCEPTS TRI COUNTY INSULATION CO TRUELINE US INSULATION GROUP VALLEY MECHANICAL INSULATION VITAL BARRIER SERVICES VMI-VALLEY MECHANICAL INSUL. INC WASTE TREATMENT COMPLETION WEST COAST FIRESTOPPING WEST COAST MECHANICAL INSULATION YEAROUT SUPPORT SERVICES, LLC ZOLNAY INSULATION INC*PRE APPRENTICE</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleR>
  </ReturnData>
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