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      <RetainedEarningsEndowmentEtc>
        <BOY>65667367</BOY>
        <EOY>69267131</EOY>
      </RetainedEarningsEndowmentEtc>
      <TotalNetAssetsFundBalances>
        <BOY>65667367</BOY>
        <EOY>69267131</EOY>
      </TotalNetAssetsFundBalances>
      <TotalLiabNetAssetsFundBalances>
        <BOY>66111437</BOY>
        <EOY>77720501</EOY>
      </TotalLiabNetAssetsFundBalances>
      <InfoInScheduleOPartXI>X</InfoInScheduleOPartXI>
      <ReconcilationRevenueExpenses>1950179</ReconcilationRevenueExpenses>
      <ReconcilationOtherChanges>1649585</ReconcilationOtherChanges>
      <MethodOfAccountingAccrual>X</MethodOfAccountingAccrual>
      <AccountantCompileOrReview>0</AccountantCompileOrReview>
      <FSAudited>1</FSAudited>
      <AuditCommittee>1</AuditCommittee>
      <FinancialStatementSeparate>X</FinancialStatementSeparate>
      <FederalGrantAuditRequired>0</FederalGrantAuditRequired>
    </IRS990>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <Equipment>
        <OtherCostOrOtherBasis>596072</OtherCostOrOtherBasis>
        <Depreciation>566302</Depreciation>
        <BookValue>29770</BookValue>
      </Equipment>
      <TotalOfBookValueLandBuildings>29770</TotalOfBookValueLandBuildings>
      <OtherLiabilities>
        <Description>DEPOSITS - NON BARGAINED PLAN</Description>
        <Amount>311912</Amount>
      </OtherLiabilities>
      <OtherLiabilities>
        <Description>DUE TO BROKER</Description>
        <Amount>7943362</Amount>
      </OtherLiabilities>
      <OtherLiabilities>
        <Description>DUE TO RELATED ORGANIZATIONS</Description>
        <Amount>775</Amount>
      </OtherLiabilities>
      <TotalOfAmounts>8256049</TotalOfAmounts>
      <TotalRevenue>45462855</TotalRevenue>
      <TotalExpenses>43512676</TotalExpenses>
      <ExcessOrDeficitForYear>1950179</ExcessOrDeficitForYear>
      <NetUnrealizedGLOnInvestments>1649585</NetUnrealizedGLOnInvestments>
      <TotalAdjustments>1649585</TotalAdjustments>
      <ExcessOrDeficitPerFS>3599764</ExcessOrDeficitPerFS>
      <TotRevenueEtcAuditedFinclStmt>46144751</TotRevenueEtcAuditedFinclStmt>
      <NetUnrealizedGainsInvestments>1649585</NetUnrealizedGainsInvestments>
      <RevenueNotRptdF990>1649585</RevenueNotRptdF990>
      <RevenueSubtotal>44495166</RevenueSubtotal>
      <InvestmentExpensesNotIncluded>237930</InvestmentExpensesNotIncluded>
      <OtherRevenuesNotIncluded>729759</OtherRevenuesNotIncluded>
      <RevenueNotRptdOnFinStmt>967689</RevenueNotRptdOnFinStmt>
      <TotalRevenuePerForm990>45462855</TotalRevenuePerForm990>
      <TotExpensesEtcAuditedFinclStmt>42544987</TotExpensesEtcAuditedFinclStmt>
      <ExpensesNotRptdF990>0</ExpensesNotRptdF990>
      <ExpensesSubtotal>42544987</ExpensesSubtotal>
      <InvestmentExpensesNotIncluded2>237930</InvestmentExpensesNotIncluded2>
      <OtherExpensesNotIncluded>729759</OtherExpensesNotIncluded>
      <ExpensesNotRptdOnFinStmt>967689</ExpensesNotRptdOnFinStmt>
      <TotalExpensesPerForm990>43512676</TotalExpensesPerForm990>
      <Form990ScheduleDPartXIV>
        <Identifier>DESCRIPTION OF UNCERTAIN TAX POSITIONS UNDER FIN 48:</Identifier>
        <ReturnReference>PART X:</ReturnReference>
        <Explanation>THE PLAN FILES FORM 990, RETURN OF ORGANIZATION EXEMPT FROM INCOME TAX AND FORM 5500, ANNUAL RETURN/REPORT OF EMPLOYEE BENEFIT PLAN. THE PLAN'S RETURNS ARE SUBJECT TO EXAMINATION BY THE INTERNAL REVENUE SERVICE UNTIL THE APPLICABLE STATUTE OF LIMITATION EXPIRES</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>PART XII, LINE 4B - OTHER ADJUSTMENTS:</Identifier>
        <Explanation>REIMBURSED ADMINISTRATIVE EXPENSES 695,044. ERRP REFUND 34,715.</Explanation>
      </Form990ScheduleDPartXIV>
      <Form990ScheduleDPartXIV>
        <Identifier>PART XIII, LINE 4B - OTHER ADJUSTMENTS:</Identifier>
        <Explanation>ERRP REFUND 34,715. REIMBURSED ADMINISTRATIVE EXPENSES 695,044.</Explanation>
      </Form990ScheduleDPartXIV>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <SeverancePayment>0</SeverancePayment>
      <SupplementalNonqualRetirePlan>0</SupplementalNonqualRetirePlan>
      <EquityBasedCompArrangement>0</EquityBasedCompArrangement>
      <Form990ScheduleJPartII>
        <NamePerson>ROCCO TERRANOVA</NamePerson>
        <BaseCompensationFilingOrg>0</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>217656</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>0</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>77833</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>0</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>21293</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>0</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>316782</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>ROBERT SCHNEIDER</NamePerson>
        <BaseCompensationFilingOrg>0</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>168261</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>0</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>64346</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>0</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>21293</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>0</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>253900</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>MIKE VITTORIO</NamePerson>
        <BaseCompensationFilingOrg>0</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>158302</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>0</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>61664</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>0</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>21293</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>0</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>241259</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
      <Form990ScheduleJPartII>
        <NamePerson>JOSEPH OHM</NamePerson>
        <BaseCompensationFilingOrg>183010</BaseCompensationFilingOrg>
        <CompBasedOnRelatedOrgs>0</CompBasedOnRelatedOrgs>
        <BonusFilingOrg>0</BonusFilingOrg>
        <BonusRelatedOrgs>0</BonusRelatedOrgs>
        <OtherCompensationFilingOrg>0</OtherCompensationFilingOrg>
        <OtherCompensationRelatedOrgs>0</OtherCompensationRelatedOrgs>
        <DeferredCompFilingOrg>13294</DeferredCompFilingOrg>
        <DeferredCompRelatedOrgs>0</DeferredCompRelatedOrgs>
        <NontaxableBenefitsFilingOrg>32075</NontaxableBenefitsFilingOrg>
        <NontaxableBenefitsRelatedOrgs>0</NontaxableBenefitsRelatedOrgs>
        <TotalCompensationFilingOrg>228379</TotalCompensationFilingOrg>
        <TotalCompensationRelatedOrgs>0</TotalCompensationRelatedOrgs>
        <CompReportPrior990FilingOrg>0</CompReportPrior990FilingOrg>
        <CompReportPrior990RelatedOrgs>0</CompReportPrior990RelatedOrgs>
      </Form990ScheduleJPartII>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 8B</ReturnReference>
        <Explanation>THERE ARE NO COMMITTEES THAT HAVE AUTHORITY TO ACT ON BEHALF OF THE GOVERNING BODY.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 11</ReturnReference>
        <Explanation>THE FORM 990 IS PROVIDED TO THE ENTIRE BOARD OF TRUSTEES WHO REVIEW AND APPROVE THE RETURN BEFORE THE IT IS FILED.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 12C</ReturnReference>
        <Explanation>COMPLIANCE WITH THE POLICIES ARE REVIEWED AND MONITORED THROUGH DISCUSSION AT THE TRUSTEES' MEETINGS.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 15B</ReturnReference>
        <Explanation>THE SALARY OF THE FUND ADMINISTRATOR IS DETERMINED AND APPROVED BY THE BOARD OF TRUSTEES.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 19</ReturnReference>
        <Explanation>THE ORGANIZATION PROVIDES THE GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS TO PARTICIPANTS AT THE FUND OFFICE UPON THEIR REQUEST.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <Identifier>CHANGES IN NET ASSETS OR FUND BALANCES:</Identifier>
        <ReturnReference>FORM 990, PART XI, LINE 5:</ReturnReference>
        <Explanation>NET UNREALIZED GAINS ON INVESTMENTS: 1,649,585.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VII, LINE 1A</ReturnReference>
        <Explanation>THE ADMINISTRATOR OF THE PLAN IS ALSO THE ADMINISTRATOR OF THE RELATED PENSION PLAN. THE REPORTING ORGANIZATION INITIALLY PAYS THE ADMINISTRATOR'S SALARY AND BENEFITS. AMOUNTS ARE REIMBURSED PERIODICALLY BASED ON AN ALLOCATION APPROVED BY THE TRUSTEES.</Explanation>
      </GeneralExplanation>
    </IRS990ScheduleO>
    <IRS990ScheduleR documentId="RetDoc1043400001">
      <Form990ScheduleRPartII>
        <NameOfDisregardedEntity>
          <BusinessNameLine1>SHEET METAL WORKERS' LOCAL 73 PENSION FUND</BusinessNameLine1>
        </NameOfDisregardedEntity>
        <AddressUS>
          <AddressLine1>4530 W ROOSEVELT ROAD</AddressLine1>
          <City>HILLSIDE</City>
          <State>IL</State>
          <ZIPCode>60162</ZIPCode>
        </AddressUS>
        <PrimaryActivities>PROVIDE PENSION BENEFITS TO MEMBERS</PrimaryActivities>
        <LegalDomicileState>IL</LegalDomicileState>
        <ExemptCodeSection>401(A)</ExemptCodeSection>
        <ControlledOrg>0</ControlledOrg>
      </Form990ScheduleRPartII>
      <Form990ScheduleRPartII>
        <NameOfDisregardedEntity>
          <BusinessNameLine1>SHEET METAL WORKERS' LOCAL UNION 73</BusinessNameLine1>
        </NameOfDisregardedEntity>
        <AddressUS>
          <AddressLine1>4550 ROOSEVELT ROAD</AddressLine1>
          <City>HILLSIDE</City>
          <State>IL</State>
          <ZIPCode>60162</ZIPCode>
        </AddressUS>
        <PrimaryActivities>ORGANIZE WORKERS FOR ECONOMIC, MORAL AND SOCIAL ADVANCEMENT</PrimaryActivities>
        <LegalDomicileState>IL</LegalDomicileState>
        <ExemptCodeSection>501(C)</ExemptCodeSection>
        <ControlledOrg>0</ControlledOrg>
      </Form990ScheduleRPartII>
      <Form990ScheduleRPartII>
        <NameOfDisregardedEntity>
          <BusinessNameLine1>SHEET METAL WORKERS' LOCAL 73 APPRENTICE FUND AND JOURNEYMEN'S TRAINING FUN</BusinessNameLine1>
        </NameOfDisregardedEntity>
        <AddressUS>
          <AddressLine1>2701 WEST VAN BUREN</AddressLine1>
          <City>BELLWOOD</City>
          <State>IL</State>
          <ZIPCode>60104</ZIPCode>
        </AddressUS>
        <PrimaryActivities>PROVIDE FOR SUPPORT, MAINTENANCE, AND ADMINISTRATION OF APPR TRAINING PROGRA</PrimaryActivities>
        <LegalDomicileState>IL</LegalDomicileState>
        <ExemptCodeSection>501(C)</ExemptCodeSection>
        <ControlledOrg>0</ControlledOrg>
      </Form990ScheduleRPartII>
      <Form990ScheduleRPartIII>
        <NameOfRelatedOrg>
          <BusinessNameLine1>AT MECHANICAL LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>9335 W BELMONT AVE</AddressLine1>
          <City>FRANKLIN PARK</City>
          <State>IL</State>
          <ZIPCode>60131</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
        <DirectControllingEntityNA>N/A</DirectControllingEntityNA>
      </Form990ScheduleRPartIII>
      <Form990ScheduleRPartIII>
        <NameOfRelatedOrg>
          <BusinessNameLine1>HAYES MECHANICAL</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>5959 S HARLEM</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60638</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
        <DirectControllingEntityNA>N/A</DirectControllingEntityNA>
      </Form990ScheduleRPartIII>
      <Form990ScheduleRPartIII>
        <NameOfRelatedOrg>
          <BusinessNameLine1>INTERACTIVE BUILDING SOLUTIONS LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1919 CHERRY HILL RD</AddressLine1>
          <City>JOLIET</City>
          <State>IL</State>
          <ZIPCode>60433</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
        <DirectControllingEntityNA>N/A</DirectControllingEntityNA>
      </Form990ScheduleRPartIII>
      <Form990ScheduleRPartIII>
        <NameOfRelatedOrg>
          <BusinessNameLine1>LUSETHERMAL TECHNOLOGIES LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3990 ENTERPRISE CT</AddressLine1>
          <City>AURORA</City>
          <State>IL</State>
          <ZIPCode>60504</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
        <DirectControllingEntityNA>N/A</DirectControllingEntityNA>
      </Form990ScheduleRPartIII>
      <Form990ScheduleRPartIII>
        <NameOfRelatedOrg>
          <BusinessNameLine1>NATIONS ROOF NORTH LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>901 SEUTRY DRIVE</AddressLine1>
          <City>WAUKESHA</City>
          <State>WI</State>
          <ZIPCode>53186</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>WI</LegalDomicileState>
        <DirectControllingEntityNA>N/A</DirectControllingEntityNA>
      </Form990ScheduleRPartIII>
      <Form990ScheduleRPartIII>
        <NameOfRelatedOrg>
          <BusinessNameLine1>POINT 1 ENGINEERING</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>600 KINGLAND DR</AddressLine1>
          <City>BATAVIA</City>
          <State>IL</State>
          <ZIPCode>60510</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
        <DirectControllingEntityNA>N/A</DirectControllingEntityNA>
      </Form990ScheduleRPartIII>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>AFFORDABLE COMFORT CONSTRUCTION HVAC INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>500 W TAFT DR</AddressLine1>
          <City>SOUTH HOLLAND</City>
          <State>IL</State>
          <ZIPCode>60473</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>AERO TESTING &amp; BALANCING SYSTEMS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>11100 W BELMONT</AddressLine1>
          <City>FRANKLIN PARK</City>
          <State>IL</State>
          <ZIPCode>60131</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ADVANCE MECHANICAL SYSTEMS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>425 E ALGONQUIN RD</AddressLine1>
          <City>ARLINGTON HEIGHTS</City>
          <State>IL</State>
          <ZIPCode>60005</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ADMIRAL MECHANICAL SERVICES INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4150 LITT DR</AddressLine1>
          <City>HILLSIDE</City>
          <State>IL</State>
          <ZIPCode>60162</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ADMIRAL HEATING &amp; VENTILATING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4150 LITT DR</AddressLine1>
          <City>HILLSIDE</City>
          <State>IL</State>
          <ZIPCode>60162</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ACTIVE GLASS CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1530 LANDMEIER RD</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>A &amp; H MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1215 EAST 79TH ST</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60619</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>AIR COMFORT CORPORATION</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2550 BRAGA DR</AddressLine1>
          <City>BROADVIEW</City>
          <State>IL</State>
          <ZIPCode>60155</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>AIR DESIGN SYSTEMS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>12011 W 91ST ST</AddressLine1>
          <City>WILLOW SPRINGS</City>
          <State>IL</State>
          <ZIPCode>60480</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>AIR FILTER HEATING &amp; COOLING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4070 ADAMS ST</AddressLine1>
          <City>GARY</City>
          <State>IN</State>
          <ZIPCode>46408</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IN</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>AIR-RITE HEATING &amp; COOLING</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>100 OVERLAND DR</AddressLine1>
          <City>NORTH AURORA</City>
          <State>IL</State>
          <ZIPCode>60542</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>AIR SUPPLY AIR CONDITIONING &amp; HEATING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>81450 TAMELING CT UNIT B</AddressLine1>
          <City>BARTLETT</City>
          <State>IL</State>
          <ZIPCode>60103</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ALL CHICAGO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4100 W BELMONT AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60641</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ALL DECK ERECTORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>PO BOX 3433</AddressLine1>
          <City>BARRINGTON</City>
          <State>IL</State>
          <ZIPCode>60011</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ALLPOINTS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>909 LUNT</AddressLine1>
          <City>SCHAUMBURG</City>
          <State>IL</State>
          <ZIPCode>60193</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>AMBER MECHANICAL CONTRACTORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>11950 S CENTRAL AVE</AddressLine1>
          <City>ALSIP</City>
          <State>IL</State>
          <ZIPCode>60803</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>AMERICAN ENGINEERING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3 W COLLEGE DR</AddressLine1>
          <City>ARLINGTON HEIGHTS</City>
          <State>IL</State>
          <ZIPCode>60004</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>AMERICAN SHEET METAL FABRICATORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>525 N WILLIAMS ST</AddressLine1>
          <City>THORNTON</City>
          <State>IL</State>
          <ZIPCode>60476</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ANCHOR MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>215 S ABERDEEN</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60607</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ANTHONY ROOFING TECTA AMERICA LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2555 WHITE OAK CIRCLE</AddressLine1>
          <City>AURORA</City>
          <State>IL</State>
          <ZIPCode>60502</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ANY TEMPERATURE INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>210 EASY ST</AddressLine1>
          <City>CAROL STREAM</City>
          <State>IL</State>
          <ZIPCode>60188</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ARCHITECTURAL METAL ERECTORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>PO BOX 33</AddressLine1>
          <City>DYER</City>
          <State>IN</State>
          <ZIPCode>46311</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IN</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ARCHITECTURAL PANEL SYSTEMS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1665 QUINCY AVE SUITE 115</AddressLine1>
          <City>NAPERVILLE</City>
          <State>IL</State>
          <ZIPCode>60540</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ARNOLD HEATING CLEANING &amp; SHEETMETAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>6609 W 79TH ST</AddressLine1>
          <City>BURBANK</City>
          <State>IL</State>
          <ZIPCode>60459</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>B &amp; B SHEET METAL CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>25094 W OLD RAND RD</AddressLine1>
          <City>WAUCONDA</City>
          <State>IL</State>
          <ZIPCode>60084</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>BENNETT &amp; BROSSEAU ROOFING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>535 ANDERSON DR</AddressLine1>
          <City>ROMEOVILLE</City>
          <State>IL</State>
          <ZIPCode>60446</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>BIEDRON HEATING &amp; COOLING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1820 WALLACE AVE SUITE 102</AddressLine1>
          <City>ST CHARLES</City>
          <State>IL</State>
          <ZIPCode>60174</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>BOSWELL BUILDING CONTRACTORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3117 N LOTUS</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60641</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>BR PRODUCTIONS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>8952 S HANSLICK CT SUITE 12</AddressLine1>
          <City>NAPERVILLE</City>
          <State>IL</State>
          <ZIPCode>60564</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>RE BURKE SHEET METAL CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>7667 GROSS POINT RD</AddressLine1>
          <City>SKOKIE</City>
          <State>IL</State>
          <ZIPCode>60077</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>C A HAYES MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>15311 SOUTH 70TH CT</AddressLine1>
          <City>ORLAND PARK</City>
          <State>IL</State>
          <ZIPCode>60462</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>C ACITELLI HEATING &amp; PIPING CONTRACTORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>813 SOUTH VILLA AVE</AddressLine1>
          <City>VILLA PARK</City>
          <State>IL</State>
          <ZIPCode>60181</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CT MECHANICAL</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1070 NORTH GARFIELD</AddressLine1>
          <City>LOMBARD</City>
          <State>IL</State>
          <ZIPCode>60148</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CEMCO COMPLETE ENERGY MANAGEMENT CONTROL CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>8450 W 191ST ST SUITE 17</AddressLine1>
          <City>MOKENA</City>
          <State>IL</State>
          <ZIPCode>60448</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CHICAGO BLOW PIPE CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2710 W LAKE ST</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60612</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CHICAGO COOLING CORP</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2728 N ELSTON AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60647</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CIRCLE R MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>6620 SHEPHERD AVE</AddressLine1>
          <City>PORTAGE</City>
          <State>IN</State>
          <ZIPCode>46368</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IN</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CLIMATE MASTER MECHANICAL CONTRACTORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>19133 S 85TH CT</AddressLine1>
          <City>MOKENA</City>
          <State>IL</State>
          <ZIPCode>60448</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CLIMATE SERVICE INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>311 E ELLINOIS AVE</AddressLine1>
          <City>PALATINE</City>
          <State>IL</State>
          <ZIPCode>60067</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CLIMATEMP INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>315 N MAY ST</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60607</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CLIMATEMP SERVICE GROUP LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2315 GARDNER RD</AddressLine1>
          <City>BROADVIEW</City>
          <State>IL</State>
          <ZIPCode>60155</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>COLUMBIA SHEET METAL WORKS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>5491 N NORTHWEST HWY</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60630</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>COMBINED MECHANICAL INDUSTRIES LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>6321 W DEMPSTER SUITE 277</AddressLine1>
          <City>MORTON GROVE</City>
          <State>IL</State>
          <ZIPCode>60053</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>COMBINED ROOFING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>621 W WASHINGTON ST</AddressLine1>
          <City>WEST CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60185</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>COMFORT TEMP INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>7757 W 96TH PL</AddressLine1>
          <City>HICKORY HILLS</City>
          <State>IL</State>
          <ZIPCode>60457</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>COMMERCIAL HEATING &amp; AIR CONDITIONING LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2344 W HUBBARD ST</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60612</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>COMMERCIAL SPECIALTIES INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2255 LOIS DR SUITE 9</AddressLine1>
          <City>ROLLING MEADOWS</City>
          <State>IL</State>
          <ZIPCode>60008</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CONTROLLED ENRIVONMENT TESTING &amp; BALANCING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1350 REMINGTON RD SUITE U</AddressLine1>
          <City>SCHAUMBURG</City>
          <State>IL</State>
          <ZIPCode>60173</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CORRECT CONSTRUCTION INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>336 W 806 N</AddressLine1>
          <City>VALPARAISO</City>
          <State>IN</State>
          <ZIPCode>46385</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IN</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CRITICAL ENVIRONMENTS PROFESSIONALS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>103 N DONALD AVE</AddressLine1>
          <City>ARLINGTON HEIGHTS</City>
          <State>IL</State>
          <ZIPCode>60004</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>D &amp; K SHEET METAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3105 RIDGELAND AVE</AddressLine1>
          <City>BERWYN</City>
          <State>IL</State>
          <ZIPCode>60402</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>DEKALB MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>339 WURLITZER DR</AddressLine1>
          <City>DEKALB</City>
          <State>IL</State>
          <ZIPCode>60115</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>DEMCO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2975 W SOFFEL</AddressLine1>
          <City>MELROSE PARK</City>
          <State>IL</State>
          <ZIPCode>60160</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>DENNING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4N944 OLD LAFOX RD</AddressLine1>
          <City>WASCO</City>
          <State>IL</State>
          <ZIPCode>60183</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>DES PLAINES GLASS COMPANY</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>962 LEE ST</AddressLine1>
          <City>DES PLAINES</City>
          <State>IL</State>
          <ZIPCode>60016</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>DOMAIN CORPORATION</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>6238 NORTHWEST HIGHWAY</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60630</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>DOORNBOS HEATING &amp; AIR CONDITIONING</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>11310 SOUTH CICERO AVE</AddressLine1>
          <City>ALSIP</City>
          <State>IL</State>
          <ZIPCode>60803</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>EAST IOWA DECKS SUPPORT INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>13816 HIGH RD</AddressLine1>
          <City>LOCKPORT</City>
          <State>IL</State>
          <ZIPCode>60441</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>EDMAR HEATING &amp; COOLING CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>PO BOX 546</AddressLine1>
          <City>WAUCONDA</City>
          <State>IL</State>
          <ZIPCode>60084</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>EDWARDS ENGINEERING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1000 TOUHY AVE</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>EMCOR SERVICES TEAM MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>431 LEXINGTON DR</AddressLine1>
          <City>BUFFALO GROVE</City>
          <State>IL</State>
          <ZIPCode>60089</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ENVIRO MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1020 W FULLERTON AVE SUITE D</AddressLine1>
          <City>ADDISON</City>
          <State>IL</State>
          <ZIPCode>60101</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ERA GROUP INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2600 W 35TH ST</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60632</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ERICKSON ELECTRICAL EQUIPMENT CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>475 BONNIE LN</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>FE MORAN INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2265 CARLSON DR</AddressLine1>
          <City>NORTHBROOK</City>
          <State>IL</State>
          <ZIPCode>60062</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>FAB RITE SHEET METAL</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>74 BRADROCK DR</AddressLine1>
          <City>DES PLAINES</City>
          <State>IL</State>
          <ZIPCode>60018</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>FLO-TECH MECHANICAL SYSTEMS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1304 NATIONAL AVE</AddressLine1>
          <City>ADDISON</City>
          <State>IL</State>
          <ZIPCode>60101</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>FOUR SEASONS MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1580 E 90TH PL</AddressLine1>
          <City>MERRILLVILLE</City>
          <State>IL</State>
          <ZIPCode>46410</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>FRANK KREUTZER &amp; CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2646 W MADISON ST</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60612</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>GE MATHIS CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>6100 S OAK PARK AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60638</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>GT MECHANICAL PROJECTS &amp; DESIGN INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>15729 ANNICO DR</AddressLine1>
          <City>HOMER GLEN</City>
          <State>IL</State>
          <ZIPCode>60491</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>GARCO ENTERPRISES INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>9935 S 76TH AVE UNIT 0</AddressLine1>
          <City>BRIDGEVIEW</City>
          <State>IL</State>
          <ZIPCode>60544</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>GHC MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>990 PAULY DR</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>GROSSE MECHANICAL CONTRACTORS OF ILLINOIS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>360 KENT AVE</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>GUS BERTHOLD ELECTRIC CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1900 W CARROLL AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60612</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>HARTWIG PLUMBING &amp; HEATING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>20800 E BRINK ST</AddressLine1>
          <City>HARVARD</City>
          <State>IL</State>
          <ZIPCode>60033</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>HEMINGWAY INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>15300 GREENWOOD RD</AddressLine1>
          <City>SOUTH HOLLAND</City>
          <State>IL</State>
          <ZIPCode>60473</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>HENNESSY SHEET METAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3220 LEWIS AVE</AddressLine1>
          <City>STEGER</City>
          <State>IL</State>
          <ZIPCode>60475</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>HILL MECHANICAL CORP</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>11045 GAGE AVE</AddressLine1>
          <City>FRANKLIN PARK</City>
          <State>IL</State>
          <ZIPCode>60131</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ICON IDENTITY SOLUTIONS</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1418 ELMHURST RD</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>IKON SOFTWARE INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>415 W GOLF RD SUITE 27</AddressLine1>
          <City>ARLINGTON HEIGHTS</City>
          <State>IL</State>
          <ZIPCode>60005</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>INDEPENDENT MECHANICAL INDUSTRIES INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4155 N KNOX AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60641</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>INSTITUTIONAL EQUIPMENT INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>704 VETERANS PKWY UNIT B</AddressLine1>
          <City>BOLINGBROOK</City>
          <State>IL</State>
          <ZIPCode>60440</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>INTERNATIONAL CHIMNEY CORP</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>PO BOX 260</AddressLine1>
          <City>BUFFALO</City>
          <State>NY</State>
          <ZIPCode>14231</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>NY</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>INTERNATIONAL TEST &amp; BALANCE INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>380 NORTHWEST HWY</AddressLine1>
          <City>DES PLAINES</City>
          <State>IL</State>
          <ZIPCode>60016</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>J &amp; A SHEET METAL</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1800 N CAMPBELL AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60647</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>JENSEN'S PLUMBING &amp; HEATING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>670 E CALHOUN ST</AddressLine1>
          <City>WOODSTOCK</City>
          <State>IL</State>
          <ZIPCode>60098</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>JOHN J CAHILL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1515 CHURCH ST</AddressLine1>
          <City>EVANSTON</City>
          <State>IL</State>
          <ZIPCode>60201</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>JOHN J RICKHOFF SHEET METAL CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>320 EAST 152ND ST</AddressLine1>
          <City>HARVEY</City>
          <State>IL</State>
          <ZIPCode>60426</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>JOHN MAIER CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>PO BOX 763</AddressLine1>
          <City>CHICAGO HEIGHTS</City>
          <State>IL</State>
          <ZIPCode>60411</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>JOHN'S SERVICE &amp; SALES INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>117 W WALNUT ST</AddressLine1>
          <City>OGLESBY</City>
          <State>IL</State>
          <ZIPCode>61348</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>JONES &amp; CLEARY SHEET METAL CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>6838 SO SOUTH CHICAGO AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60637</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>KBS SHEET METAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>689 TANAGER LN</AddressLine1>
          <City>NEW LENOX</City>
          <State>IL</State>
          <ZIPCode>60451</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>KCW ENVIRONMENTAL CONDITIONING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>150 E ST CHARLES RD SUITE D</AddressLine1>
          <City>CAROL STREAM</City>
          <State>IL</State>
          <ZIPCode>60188</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>KEY WEST METAL INDUSTRIES INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>13831 S KOSTNER AVE</AddressLine1>
          <City>CRESTWOOD</City>
          <State>IL</State>
          <ZIPCode>60445</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>KIRBY SHEET METAL WORKS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4209 SOUTH WESTERN BLVD</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60609</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>KNICKERBOCKER SHEET METAL CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>16851 S LATHROP AVE</AddressLine1>
          <City>HARVEY</City>
          <State>IL</State>
          <ZIPCode>60426</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>KROESCHELL ENGINEERING CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3222 KENNICOTT AVE</AddressLine1>
          <City>ARLINGTON HEIGHTS</City>
          <State>IL</State>
          <ZIPCode>60004</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>L MARSHALL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2100 LEHIGH AVE</AddressLine1>
          <City>GLENVIEW</City>
          <State>IL</State>
          <ZIPCode>60026</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>LMI TEST &amp; BALANCE INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>PO BOX 191</AddressLine1>
          <City>HUNTLEY</City>
          <State>IL</State>
          <ZIPCode>60142</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>M-K SIGNS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4900 N ELSTON AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60630</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ML RONGO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4817 W LAKE ST</AddressLine1>
          <City>MELROSE PARK</City>
          <State>IL</State>
          <ZIPCode>60160</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MW POWELL CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3445 S LAWNDALE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60623</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MAGIC INSTALLATIONS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1902 WATERS EDGE LN</AddressLine1>
          <City>SEABROOK</City>
          <State>TX</State>
          <ZIPCode>77586</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MAHONEY PLUMBING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>501 BANK LN</AddressLine1>
          <City>HIGHWOOD</City>
          <State>IL</State>
          <ZIPCode>60040</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>T MAIER MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>18445 DIXIE HIGHWAY</AddressLine1>
          <City>HOMEWOOD</City>
          <State>IL</State>
          <ZIPCode>60430</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MARTIN PETERSEN CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>9800 55TH ST</AddressLine1>
          <City>KENOSHA</City>
          <State>WI</State>
          <ZIPCode>53144</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>WI</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MCCAULEY MECHANICAL CONSTRUCTION INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>8787 S 78TH AVE</AddressLine1>
          <City>BRIDGEVIEW</City>
          <State>IL</State>
          <ZIPCode>60455</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MECHANICAL CONCEPTS OF ILLINOIS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>333 S OHARE DR</AddressLine1>
          <City>ROMEOVILLE</City>
          <State>IL</State>
          <ZIPCode>60446</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2279 YELLOW CREEK RD</AddressLine1>
          <City>FREEPORT</City>
          <State>IL</State>
          <ZIPCode>61032</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MECHANICAL TEST &amp; BALANCE INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>PO BOX 1157</AddressLine1>
          <City>CROWN POINT</City>
          <State>IN</State>
          <ZIPCode>46308</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IN</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>METAL EDGE INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>47 E 34TH ST</AddressLine1>
          <City>SOUTH CHICAGO HEIGHTS</City>
          <State>IL</State>
          <ZIPCode>60411</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>METAL ERECTOR INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1401 GLENLAKE AVE</AddressLine1>
          <City>ITASCA</City>
          <State>IL</State>
          <ZIPCode>60143</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>METAL WORKS OF CHICAGO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2333 HAMILTON RD</AddressLine1>
          <City>ARLINGTON HEIGHTS</City>
          <State>IL</State>
          <ZIPCode>60005</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>METALMASTER SHEETMETAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4800 METALMASTER WAY</AddressLine1>
          <City>MCHENRY</City>
          <State>IL</State>
          <ZIPCode>60050</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MIDWEST M &amp; P INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>7623 PLAZA CT</AddressLine1>
          <City>WILLOWBROOK</City>
          <State>IL</State>
          <ZIPCode>60527</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MK INDUSTRIES INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>204 S SHADDLE AVE</AddressLine1>
          <City>MUNDELEIN</City>
          <State>IL</State>
          <ZIPCode>60060</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MORENO &amp; SONS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2366 PLAINFIELD RD</AddressLine1>
          <City>CREST HILL</City>
          <State>IL</State>
          <ZIPCode>60403</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MORTENSON ROOFING CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>9505 CORSAIR RD</AddressLine1>
          <City>FRANKFORT</City>
          <State>IL</State>
          <ZIPCode>60423</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>MURPHY &amp; MILLER INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>600 WEST TAYLOR ST</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60607</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>NATIONAL HEAT &amp; POWER CORP</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>7631 N AUSTIN AVE</AddressLine1>
          <City>SKOKIE</City>
          <State>IL</State>
          <ZIPCode>60077</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>NORTHERN WEATHERMAKERS HVAC INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>339 ANTHONY TRAIL</AddressLine1>
          <City>NORTHBROOK</City>
          <State>IL</State>
          <ZIPCode>60062</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>NOBLE AIR LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>6652 W 88TH STREET</AddressLine1>
          <City>OAK LAWN</City>
          <State>IL</State>
          <ZIPCode>60453</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>O'HARE ENGINEERING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>55 MESSNER DR</AddressLine1>
          <City>WHEELING</City>
          <State>IL</State>
          <ZIPCode>60090</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>O'HARE MECHANICAL CONTRACTORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>95 GAYLORD</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>OAKLEY STEEL PRODUCTS CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>650 S 28TH AVE PO BOX 428</AddressLine1>
          <City>BELLWOOD</City>
          <State>IL</State>
          <ZIPCode>60104</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>JERRY OELERICH HEATING VENT &amp; AC INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>309 N LAKE ST</AddressLine1>
          <City>MUNDELEIN</City>
          <State>IL</State>
          <ZIPCode>60060</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>PASQUESI PLUMBING CORP</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3218 SKOKIE VALLEY RD</AddressLine1>
          <City>HIGHLAND PARK</City>
          <State>IL</State>
          <ZIPCode>60035</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>PERFECT TEMPERATURE CONTROL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>74 BRADROCK DR</AddressLine1>
          <City>DES PLAINES</City>
          <State>IL</State>
          <ZIPCode>60018</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>PERFORMANCE MECHANICAL CONTRACTORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>9228 CORSAIR RD</AddressLine1>
          <City>FRANKFORT</City>
          <State>IL</State>
          <ZIPCode>60423</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>PETERSON ELECTRIC PANEL MANUFACTURING CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>5550 MCDERMOTT DR</AddressLine1>
          <City>BERKELEY</City>
          <State>IL</State>
          <ZIPCode>60163</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>PRIDE MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>384 SUNDOWN RD</AddressLine1>
          <City>SOUTH ELGINE</City>
          <State>IL</State>
          <ZIPCode>60177</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>PROGRESSIVE DYNAMICS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>399 WALL ST UNIT G</AddressLine1>
          <City>GLENDALE HTS</City>
          <State>IL</State>
          <ZIPCode>60139</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>QU-BAR INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4149 W 166TH ST</AddressLine1>
          <City>OAK FOREST</City>
          <State>IL</State>
          <ZIPCode>60452</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>QUALITY ERECTORS 1 INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>5100 BASELINE RD</AddressLine1>
          <City>OSWEGO</City>
          <State>IL</State>
          <ZIPCode>60543</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>QUALITY METAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>17600 N WILLIAMS ST SUITE 5</AddressLine1>
          <City>THORNTON</City>
          <State>IL</State>
          <ZIPCode>60476</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>QUICKSILVER MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3361 N RIDGE AVE</AddressLine1>
          <City>ARLINGTON HEIGHTS</City>
          <State>IL</State>
          <ZIPCode>60004</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>RB HAYWARD CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>9556 RIVER ST</AddressLine1>
          <City>SCHILLER PARK</City>
          <State>IL</State>
          <ZIPCode>60176</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>RJ OLMEN COMPANY</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3200 W LAKE AVE</AddressLine1>
          <City>GLENVIEW</City>
          <State>IL</State>
          <ZIPCode>60026</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>RGH HEATING &amp; COOLING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>11414 SMITH DR UNIT C</AddressLine1>
          <City>HUNTLEY</City>
          <State>IL</State>
          <ZIPCode>60142</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>RAB AIR BALANCE INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>105 E TOWNLINE RD SUITE 335</AddressLine1>
          <City>VERNON HILLS</City>
          <State>IL</State>
          <ZIPCode>60061</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>RAM MECHANICAL SERVICES INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>258 S WESTGATE DR</AddressLine1>
          <City>CAROL STREAM</City>
          <State>IL</State>
          <ZIPCode>60188</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>RAUSCH INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>360 BENNETT RD</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>RAVINIA PLUMBING &amp; HEATING CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1580 OLD SKOKIE RD</AddressLine1>
          <City>HIGHLAND PARK</City>
          <State>IL</State>
          <ZIPCode>60035</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>REPAIR SERVICE CORP</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>PO BOX 818</AddressLine1>
          <City>LAKE ZURICH</City>
          <State>IL</State>
          <ZIPCode>60047</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>RICE MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>809 W ESTES AVE</AddressLine1>
          <City>SCHAUMBURG</City>
          <State>IL</State>
          <ZIPCode>60193</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>REM INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>8156 WEST FOREST PRESERVE DR</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60634</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ROBERTS ENVIRONMENTAL CONTROL CORP</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>8500 W 185TH ST SUITE B</AddressLine1>
          <City>TINLEY PARK</City>
          <State>IL</State>
          <ZIPCode>60487</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>ROOFS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>8722 W 47TH ST PO BOX 285</AddressLine1>
          <City>LYONS</City>
          <State>IL</State>
          <ZIPCode>60534</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>RUSH MECHANICAL CONTRACTORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>15806 ANNICO DR</AddressLine1>
          <City>HOMER GLEN</City>
          <State>IL</State>
          <ZIPCode>60491</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>S MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>16420 S KILBOURNE AVE</AddressLine1>
          <City>OAK FOREST</City>
          <State>IL</State>
          <ZIPCode>60452</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SCHMIDT STEEL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>847 S RANDALL RD SUITE 278</AddressLine1>
          <City>ELGIN</City>
          <State>IL</State>
          <ZIPCode>60123</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SEAL TIGHT EXTERIORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3239 LOVEROCK AVE</AddressLine1>
          <City>STEGER</City>
          <State>IL</State>
          <ZIPCode>60475</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SERVICE MECHANICAL INDUSTRIES INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>50 E COMMERCE DR SUITE 100</AddressLine1>
          <City>SCHAUMBURG</City>
          <State>IL</State>
          <ZIPCode>60173</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SHERMAN MECHANICAL</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1075 ALEXANDER CT</AddressLine1>
          <City>CARY</City>
          <State>IL</State>
          <ZIPCode>60013</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SOUTH CHICAGO HEATING &amp; AIR CONDITIONING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>PO BOX 466</AddressLine1>
          <City>NEW LENOX</City>
          <State>IL</State>
          <ZIPCode>60457</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SOUTH SUBURBAN HEATING &amp; AIR CONDITINOING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2914 BERNICE AVE</AddressLine1>
          <City>LANSING</City>
          <State>IL</State>
          <ZIPCode>60438</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>STANTON MECHANICAL</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>170 GAYLORD</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>STERN CORPORATION</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>16912 S LATHROP</AddressLine1>
          <City>HARVEY</City>
          <State>IL</State>
          <ZIPCode>60426</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>STORAGE &amp; DESIGN GROUP INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>5600 METRO EAST DR</AddressLine1>
          <City>PLEASANT HILL</City>
          <State>IA</State>
          <ZIPCode>50327</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IA</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SUMMIT SHEET METAL SPECIALISTS</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>7325 W 59TH ST</AddressLine1>
          <City>SUMMIT</City>
          <State>IL</State>
          <ZIPCode>60501</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SUN MECHANICAL SYSTEMS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1900 TYLER RD SUITE 100</AddressLine1>
          <City>ST CHARLES</City>
          <State>IL</State>
          <ZIPCode>60174</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SUN RAY HEATING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>21740 MAIN ST</AddressLine1>
          <City>MATTESON</City>
          <State>IL</State>
          <ZIPCode>60443</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SUPERIOR SHEET METAL &amp; HEATING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>28814 N NAGEL CT</AddressLine1>
          <City>LAKE BLUFF</City>
          <State>IL</State>
          <ZIPCode>60044</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SUPERIOR TEST &amp; BALANCE INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>PO BOX 689</AddressLine1>
          <City>ALGONQUIN</City>
          <State>IL</State>
          <ZIPCode>60102</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SYNERGY MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>9835 DERBY LN</AddressLine1>
          <City>WESTCHESTER</City>
          <State>IL</State>
          <ZIPCode>60154</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>TAL-MAR CUSTOM METAL FABRICATORS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4632 W 138TH ST</AddressLine1>
          <City>CRESTWOOD</City>
          <State>IL</State>
          <ZIPCode>60445</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>TEMPCO HEATING &amp; AIR CONDITIONING CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3050 N KENNICOTT AVE</AddressLine1>
          <City>ARLINGTON HEIGHTS</City>
          <State>IL</State>
          <ZIPCode>60004</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>TEMPERATURE SERVICE COMPANY INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>360 BONNIE LN</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>THE HEAT ENGINEERING CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>6500 JOLIET RD</AddressLine1>
          <City>COUNTRYSIDE</City>
          <State>IL</State>
          <ZIPCode>60525</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>THERM FLO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>251 HOLBROOK DR</AddressLine1>
          <City>WHEELING</City>
          <State>IL</State>
          <ZIPCode>60090</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>TISC INDUSTRIAL SALES CORP</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>23W500 PINE DR</AddressLine1>
          <City>CAROL STREAM</City>
          <State>IL</State>
          <ZIPCode>60188</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>TRI STAR MECHANICAL SERVICES INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>114 JOEY DR</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>TRICO MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1980 W US HWY 30 SUITE 11</AddressLine1>
          <City>SUGAR GROVE</City>
          <State>IL</State>
          <ZIPCode>60554</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>TRINITY ROOFING SERVICE INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>C/O CRONIN GREEN CPHS</AddressLine1>
          <City>LAGRANGE PARK</City>
          <State>IL</State>
          <ZIPCode>60526</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>TUSCHALL ENGINEERING CO INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>15W700 79TH ST</AddressLine1>
          <City>BURR RIDGE</City>
          <State>IL</State>
          <ZIPCode>60527</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>UNIFIED BUILDING SYSTEMS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>738 WATER ST</AddressLine1>
          <City>SAUK CITY</City>
          <State>WI</State>
          <ZIPCode>53583</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>WI</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>VJ KILLIAN CO</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>933 GREEN BAY RD</AddressLine1>
          <City>WINNETKA</City>
          <State>IL</State>
          <ZIPCode>60093</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>VALADE HEATING &amp; COOLING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>17406 BURNHAM AVE</AddressLine1>
          <City>LANSING</City>
          <State>IL</State>
          <ZIPCode>60438</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>VALUE PRO MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1760 BRITANNIA DR SUITE 2</AddressLine1>
          <City>ELGIN</City>
          <State>IL</State>
          <ZIPCode>60124</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>VAN'S INDUSTRIAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>231 CONDIT ST</AddressLine1>
          <City>HAMMOND</City>
          <State>IN</State>
          <ZIPCode>46320</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IN</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>VELOCITY MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>517B MORSE AVE</AddressLine1>
          <City>SCHAUMBURG</City>
          <State>IL</State>
          <ZIPCode>60193</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>VIDIMOS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>3858 INDIANA HARBER DR PO BOX 480</AddressLine1>
          <City>EAST CHICAGO</City>
          <State>IN</State>
          <ZIPCode>46312</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IN</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>WANTUCK HEATING &amp; AC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>4801 S KNOX AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60632</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>WESTSIDE MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>2007 CORPORATE LN</AddressLine1>
          <City>NAPERVILLE</City>
          <State>IL</State>
          <ZIPCode>60563</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>WHITED BROTHERS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>215 WEST 155TH ST</AddressLine1>
          <City>SOUTH HOLLAND</City>
          <State>IL</State>
          <ZIPCode>60473</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>WIESBROOK SHEET METAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>25502 RUFF ST</AddressLine1>
          <City>PLAINFIELD</City>
          <State>IL</State>
          <ZIPCode>60585</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>WINDY CITY KITCHEN INSTALLATIONS INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>PO BOX 3</AddressLine1>
          <City>MIKENA</City>
          <State>IL</State>
          <ZIPCode>60448</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>WINDY CITY STEEL CONSTRUCTION INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1833 E CREE LN</AddressLine1>
          <City>MT PROSPECT</City>
          <State>IL</State>
          <ZIPCode>60056</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>WOLF MECHANICAL INDUSTRIES INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1192 HEATHER DR</AddressLine1>
          <City>LAKE ZURICH</City>
          <State>IL</State>
          <ZIPCode>60047</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>YOUNA MECHANICAL INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>837 OAKTON ST SUITE F</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>DELTA HEATING &amp; AIR CONDITIONING INC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>139 CROSSEN AVE</AddressLine1>
          <City>ELK GROVE VILLAGE</City>
          <State>IL</State>
          <ZIPCode>60007</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>GARSH MECHANICAL LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1530 N MANHEIM SUITE B</AddressLine1>
          <City>STONE PARK</City>
          <State>IL</State>
          <ZIPCode>60165</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>SPECIALTY CONSTRUCTION LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>270 EISENHOWER LN NORTH SUITE 6</AddressLine1>
          <City>LOMBARD</City>
          <State>IL</State>
          <ZIPCode>60148</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>CANNON MANAGEMENT GROUP</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>1151 N CAMBRIDGE AVE</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60610</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>COTTAGE SHEET METAL LLC</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>6646 W 99TH ST</AddressLine1>
          <City>CHICAGO RIDGE</City>
          <State>IL</State>
          <ZIPCode>60415</ZIPCode>
        </AddressUS>
        <PrimaryActivity>CONTRIBUTING EMPLOYER</PrimaryActivity>
        <LegalDomicileState>IL</LegalDomicileState>
      </Form990ScheduleRPartIV>
      <ReceiptOfIntAnnRentsRoyalties>0</ReceiptOfIntAnnRentsRoyalties>
      <GiftGrantOrCapContrToOtherOrg>0</GiftGrantOrCapContrToOtherOrg>
      <GiftGrantOrCapContrFrOtherOrg>0</GiftGrantOrCapContrFrOtherOrg>
      <LoansOrGuaranteesToOtherOrg>0</LoansOrGuaranteesToOtherOrg>
      <LoansOrGuaranteesFromOtherOrg>0</LoansOrGuaranteesFromOtherOrg>
      <SaleOfAssetsToOtherOrg>0</SaleOfAssetsToOtherOrg>
      <PurchaseOfAssetsFromOtherOrg>0</PurchaseOfAssetsFromOtherOrg>
      <ExchangeOfAssets>0</ExchangeOfAssets>
      <RentalOfFacilitiesToOtherOrgs>0</RentalOfFacilitiesToOtherOrgs>
      <RentalOfFacilitiesFrOtherOrgs>1</RentalOfFacilitiesFrOtherOrgs>
      <PerformOfServicesForOtherOrgs>0</PerformOfServicesForOtherOrgs>
      <PerformOfServicesByOtherOrgs>0</PerformOfServicesByOtherOrgs>
      <SharingOfFacilities>1</SharingOfFacilities>
      <SharingOfPaidEmployees>1</SharingOfPaidEmployees>
      <ReimbursementPaidToOtherOrg>0</ReimbursementPaidToOtherOrg>
      <ReimbursementPaidByOtherOrg>1</ReimbursementPaidByOtherOrg>
      <OtherTransferToOtherOrg>0</OtherTransferToOtherOrg>
      <OtherTransferFromOtherOrg>1</OtherTransferFromOtherOrg>
      <TransactionsRelatedOrgsTable>
        <NameOfOtherOrganization>
          <BusinessNameLine1>SHEET METAL WORKERS 73 PENSION FUND</BusinessNameLine1>
        </NameOfOtherOrganization>
        <TransactionType>N</TransactionType>
        <AmountInvolved>443734</AmountInvolved>
      </TransactionsRelatedOrgsTable>
      <TransactionsRelatedOrgsTable>
        <NameOfOtherOrganization>
          <BusinessNameLine1>SHEET METAL WORKERS 73 PENSION FUND</BusinessNameLine1>
        </NameOfOtherOrganization>
        <TransactionType>P</TransactionType>
        <AmountInvolved>576557</AmountInvolved>
      </TransactionsRelatedOrgsTable>
      <TransactionsRelatedOrgsTable>
        <NameOfOtherOrganization>
          <BusinessNameLine1>SHEET METAL WORKERS 73 PENSION FUND</BusinessNameLine1>
        </NameOfOtherOrganization>
        <TransactionType>M</TransactionType>
        <AmountInvolved>132823</AmountInvolved>
      </TransactionsRelatedOrgsTable>
      <TransactionsRelatedOrgsTable>
        <NameOfOtherOrganization>
          <BusinessNameLine1>SHEET METAL WORKERS LOCAL UNION 73</BusinessNameLine1>
        </NameOfOtherOrganization>
        <TransactionType>J</TransactionType>
        <AmountInvolved>181248</AmountInvolved>
      </TransactionsRelatedOrgsTable>
      <Form990ScheduleRPartVII>
        <ReturnReference>FORM 990, SCH R, PART IV, SECTION A:</ReturnReference>
        <Explanation>THE ORGANIZATION DID NOT REPORT THE EMPLOYER IDENTIFICATION NUMBERS OF ITS CONTRIBUTING EMPLOYERS ON SCHEDULE R, PART IV DUE TO THE SENSITIVE NATURE OF THE INFORMATION. THIS INFORMATION MAY BE AVAILABLE AT THE FUND OFFICE.</Explanation>
      </Form990ScheduleRPartVII>
    </IRS990ScheduleR>
  </ReturnData>
</Return>