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          <BusinessNameLine1>KING CUT CONCRETE CUTTERS</BusinessNameLine1>
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          <BusinessNameLine1>LEE N' SONS PLUMBING INC</BusinessNameLine1>
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          <BusinessNameLine1>LOESCHER HEATING &amp; AC</BusinessNameLine1>
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          <BusinessNameLine1>MECHANICAL INC - STANDARD</BusinessNameLine1>
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          <BusinessNameLine1>MIDWEST MECHANICAL INDUST (BYRON)</BusinessNameLine1>
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          <BusinessNameLine1>MILLER ENGINEERING COMPANY</BusinessNameLine1>
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        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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          <BusinessNameLine1>MO-ST PLUMBING &amp; MECHANICAL</BusinessNameLine1>
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          <BusinessNameLine1>NELSON CARLSON MECH CONTR</BusinessNameLine1>
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          <BusinessNameLine1>NORTHERN IL SERVICE</BusinessNameLine1>
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          <BusinessNameLine1>NORTHERN MECHANICAL INC</BusinessNameLine1>
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          <BusinessNameLine1>NPL CONSTRUCTION CO</BusinessNameLine1>
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          <BusinessNameLine1>PEARSON PLUMBING &amp; HTG - H&amp;W HRA ONLY</BusinessNameLine1>
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          <BusinessNameLine1>PIPERS MECHANICAL INC</BusinessNameLine1>
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          <BusinessNameLine1>SCHMITT PLUMBING</BusinessNameLine1>
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          <BusinessNameLine1>SIEMENS WESTINGHOUSE GENE</BusinessNameLine1>
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          <BusinessNameLine1>STONE &amp; WEBSTER CONST INC</BusinessNameLine1>
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          <BusinessNameLine1>SWISSLOG TRANSLOGIC CORP</BusinessNameLine1>
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        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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      <IdRelatedOrgTxblCorpTrGrp>
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          <BusinessNameLine1>TOTAL PLUMBING &amp; HEATING</BusinessNameLine1>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1>TRANE COMPANY</BusinessNameLine1>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1>TRU-TEMP MECHANICAL INC</BusinessNameLine1>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1>WELD TECH SERVICES CORP</BusinessNameLine1>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1>ALL-FIVE CONCRETE CUTTERS</BusinessNameLine1>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1>BENNETT MECHANICAL CONTRACTORS</BusinessNameLine1>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1>BIG INCH FABRICATORS &amp; CONST INC</BusinessNameLine1>
        </RelatedOrganizationName>
        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1>C ACITELLI HEATING &amp; PIPING CONTRACTORS</BusinessNameLine1>
        </RelatedOrganizationName>
        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1>CHAPMAN'S MECHANICAL SYS INC</BusinessNameLine1>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1>CLIMATE PROS INC</BusinessNameLine1>
        </RelatedOrganizationName>
        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1>CONTI CORPORATION</BusinessNameLine1>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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        <RelatedOrganizationName>
          <BusinessNameLine1>DULUTH BUILDING TRADES</BusinessNameLine1>
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          <BusinessNameLine1>INDUSTRIAL CONTROL REPAIR</BusinessNameLine1>
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        <RelatedOrganizationName>
          <BusinessNameLine1>JL ALLEN CO</BusinessNameLine1>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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        <RelatedOrganizationName>
          <BusinessNameLine1>KELSEY EXCAVATING INC</BusinessNameLine1>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
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        <RelatedOrganizationName>
          <BusinessNameLine1>MARS PLUMBING &amp; HEATING INC</BusinessNameLine1>
        </RelatedOrganizationName>
        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedOrgTxblCorpTrGrp>
      <IdRelatedOrgTxblCorpTrGrp>
        <RelatedOrganizationName>
          <BusinessNameLine1>NORMAN MECHANICAL INC</BusinessNameLine1>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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        <RelatedOrganizationName>
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        <PrimaryActivitiesTxt>CONTRIBUTING EMPLOYER</PrimaryActivitiesTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
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        <RelatedOrganizationName>
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      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
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      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, SCHEDULE R, PART IV</FormAndLineReferenceDesc>
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    </IRS990ScheduleR>
  </ReturnData>
</Return>