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      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>true</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>true</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleD documentId="990D">
      <OtherAssetsOrgGrp>
        <Desc>401H ACCOUNT</Desc>
        <BookValueAmt>17638041</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>17638041</TotalBookValueOtherAssetsAmt>
      <TotalRevEtcAuditedFinclStmtAmt>12973807</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>4220613</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>4220613</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>8753194</RevenueSubtotalAmt>
      <OtherRevenuesNotIncludedAmt>66321</OtherRevenuesNotIncludedAmt>
      <RevenueNotReportedFinclStmtAmt>66321</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>8819515</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>7750696</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesSubtotalAmt>7750696</ExpensesSubtotalAmt>
      <OtherExpensesNotIncludedAmt>66321</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>66321</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>7817017</TotalExpensesPerForm990Amt>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="990J">
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Tom Walsh</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="990O">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Management duties delegation Part VI line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>The plan engages Zenith American Solutions to assist the trustees in managing the plan.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Organizational document changes Part VI line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>The plan makes various amendments and changes during the year to its benefits which are communicated to the participants.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Members or stockholder classes and rights Part VI line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>Participants in the Health and Welfare Plan</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Member election for additional members Part VI line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Participants may elect Labor Trustees</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990 governing body review Part VI line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>A draft of the form 990 was provided to the trustees prior to the filing.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Conflict of interest policy compliance Part VI line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Conflicts of interest if any are addressed by trustees at board meetings</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Governing documents etc available to public Part VI line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>All documents are available to participants of the plan. Confidential information such as medical records and personal information of the participants is not. The form 5500 and form 990 are available to the public. The form 5500 is published on EFAST the Department of Labor Website and the form 990 is published on GuideStar. Also, the form 5500 and form 990 are available by request at the office of Zenith American Solutions.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Explanation of other changes in net assets or fund balances Part XI line 9</FormAndLineReferenceDesc>
        <ExplanationTxt>Rounding</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Unable to secure related organizations compensation Part VII Col D E</FormAndLineReferenceDesc>
        <ExplanationTxt>Compensation paid by related organizations is not reported since the information was not provided to the preparer of the form 990.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>List of other fees for services expenses Part IX line 11g</FormAndLineReferenceDesc>
        <ExplanationTxt>PPO access fee 197,153, Consultants 61,940, Actuary 6,750 Pharmacy fee 264,131, Independent Medical Review 768Physical Fees 1,050</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part V response or note to any other line in Part V</FormAndLineReferenceDesc>
        <ExplanationTxt>PART V line 2aThe fund paid $ 100 gift certificate to 101 members as an incentive to get a Physical. According to the IRS, gift certificates that are redeemable for general merchandise or have a cash equivalent value are not de minimis and are taxable. These were not reported on a form W-2 however the members were informed the amounts were taxable,</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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          <BusinessNameLine1Txt>INT ASSC HEAT AND FROST INSULA</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>3325 HOLLENBERG DRIVE</AddressLine1Txt>
          <CityNm>Bridgeton</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>63044</ZIPCd>
        </USAddress>
        <EIN>430337341</EIN>
        <PrimaryActivitiesTxt>LABOR UNION</PrimaryActivitiesTxt>
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        <DirectControllingEntityName>
          <BusinessNameLine1Txt>NONE</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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        <DisregardedEntityName>
          <BusinessNameLine1Txt>INT ASS HEAT AND FROST APPR</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>3325 HOLLENBERG DRIVE</AddressLine1Txt>
          <CityNm>Bridgeton</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>63044</ZIPCd>
        </USAddress>
        <PrimaryActivitiesTxt>APPRENTICESHIP FUND</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MO</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501C5</ExemptCodeSectionTxt>
        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>Master Insulators of St Louis</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>1020 Fox Chase Industrial Driv</AddressLine1Txt>
          <CityNm>Arnold</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>630101302</ZIPCd>
        </USAddress>
        <EIN>431348081</EIN>
        <PrimaryActivitiesTxt>Association</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MO</LegalDomicileStateCd>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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        <RelatedOrganizationName>
          <BusinessNameLine1Txt>ADY INSULATION</BusinessNameLine1Txt>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
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        <RelatedOrganizationName>
          <BusinessNameLine1Txt>API</BusinessNameLine1Txt>
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      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>BI STATE INSULATION INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>FIRESTOP TECHNOLOGIES</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>INSUL &amp; SUPPLIES CORP</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>INSULATION MASTERS INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>LMB COMPANIES LLC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <LegalDomicileStateCd>AP</LegalDomicileStateCd>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>LORMAR INSULATION COMPANY</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>GRP MECHANICAL CO INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>M &amp; O INSULATION CO</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>MIDWEST MECHANICAL INSUL INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>PARAGON PIPECOVERERS INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>PREMIER INSULATION</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>PRO FIRE STOP</BusinessNameLine1Txt>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
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          <BusinessNameLine1Txt>PRO INSULATION</BusinessNameLine1Txt>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>REBEL INC</BusinessNameLine1Txt>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>SIDNEY INSULATION INC</BusinessNameLine1Txt>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>SPRINKMANN INSULATION</BusinessNameLine1Txt>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>TDK MECHANICAL SERVICES</BusinessNameLine1Txt>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>THERMAL INDUSTRIAL INSULATION</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>THORNBURGH INSULATION INC</BusinessNameLine1Txt>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>TRIANGLE ENTERPRISES INC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>WALSH INSULATION SERVICES</BusinessNameLine1Txt>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>INTEGRITY INSULATION LLC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>BUDROVICH SPECIALTY GRP LLC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>CENTRAL SERVICES</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>CLAY PIPING SYSTEMS</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>TRENHOLM MECHANICAL INSULATIO</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>UNITED MECHANICAL INSULATI</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>EDWARDS-KAMADULSKI LLC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>Allied Power</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>Apache</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>BHI Energy</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>Kaskaskia Mechanical Insulaiton Co</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>STL Direct Mechanical</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>WCM</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>WMC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>BRANDSAFWAY INDUSTRIES LLC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>GALT INDUSTRIES</BusinessNameLine1Txt>
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        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>MCNAMEE MECHANICAL INSLTN LLC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>SI THERMAL LLC</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1Txt>THERMAL SOLUTIONS</BusinessNameLine1Txt>
        </RelatedOrganizationName>
        <DirectControllingNACd>N/A</DirectControllingNACd>
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  </ReturnData>
</Return>