﻿<?xml version="1.0" encoding="utf-8"?>
<Return xmlns="http://www.irs.gov/efile" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" returnVersion="2024v5.0">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2025-12-09T12:39:07-05:00</ReturnTs>
    <TaxPeriodEndDt>2025-06-30</TaxPeriodEndDt>
    <PreparerFirmGrp>
      <PreparerFirmEIN>391933849</PreparerFirmEIN>
      <PreparerFirmName>
        <BusinessNameLine1Txt>SHERRY MATTSON SC</BusinessNameLine1Txt>
      </PreparerFirmName>
      <PreparerUSAddress>
        <AddressLine1Txt>1627 N 34TH ST</AddressLine1Txt>
        <CityNm>SUPERIOR</CityNm>
        <StateAbbreviationCd>WI</StateAbbreviationCd>
        <ZIPCd>54880</ZIPCd>
      </PreparerUSAddress>
    </PreparerFirmGrp>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2024-07-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>390517898</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>BOILERMAKERS- INT BROTHERHOOD LOCA</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>BOIL</BusinessNameControlTxt>
      <PhoneNum>7153956700</PhoneNum>
      <USAddress>
        <AddressLine1Txt>1213 TOWER AVE</AddressLine1Txt>
        <CityNm>SUPERIOR</CityNm>
        <StateAbbreviationCd>WI</StateAbbreviationCd>
        <ZIPCd>54880</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>CARTER HOFFMAN</PersonNm>
      <PersonTitleTxt>PRESIDENT</PersonTitleTxt>
      <PhoneNum>7153956700</PhoneNum>
      <SignatureDt>2025-11-13</SignatureDt>
    </BusinessOfficerGrp>
    <IRSResponsiblePrtyInfoCurrInd>true</IRSResponsiblePrtyInfoCurrInd>
    <PreparerPersonGrp>
      <PreparerPersonNm>TAMMY OLSON</PreparerPersonNm>
      <PTIN>P01647660</PTIN>
      <PhoneNum>7153951832</PhoneNum>
      <PreparationDt>2025-12-09</PreparationDt>
    </PreparerPersonGrp>
    <TaxYr>2024</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="RetDoc1" referenceDocumentId="RetDoc3">
      <GroupExemptionNum>1252</GroupExemptionNum>
      <MethodOfAccountingCashInd>X</MethodOfAccountingCashInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>N/A</WebsiteAddressTxt>
      <Organization501cInd organization501cTypeTxt="5">X</Organization501cInd>
      <TypeOfOrganizationOtherInd>X</TypeOfOrganizationOtherInd>
      <TypeOfOrganizationOtherDesc>LABOR UNION</TypeOfOrganizationOtherDesc>
      <GrossReceiptsAmt>57820</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <MembershipDuesAmt>57573</MembershipDuesAmt>
      <InvestmentIncomeAmt>247</InvestmentIncomeAmt>
      <TotalRevenueAmt>57820</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>23771</GrantsAndSimilarAmountsPaidAmt>
      <SalariesOtherCompEmplBnftAmt>11469</SalariesOtherCompEmplBnftAmt>
      <FeesAndOtherPymtToIndCntrctAmt>1275</FeesAndOtherPymtToIndCntrctAmt>
      <OccupancyRentUtltsAndMaintAmt>3000</OccupancyRentUtltsAndMaintAmt>
      <OtherExpensesTotalAmt>11056</OtherExpensesTotalAmt>
      <TotalExpensesAmt>50571</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>7249</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>21501</NetAssetsOrFundBalancesBOYAmt>
      <OtherChangesInNetAssetsAmt>187</OtherChangesInNetAssetsAmt>
      <NetAssetsOrFundBalancesEOYAmt>28937</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>21501</BOYAmt>
        <EOYAmt>28937</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>21501</BOYAmt>
        <EOYAmt>28937</EOYAmt>
      </Form990TotalAssetsGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>21501</BOYAmt>
        <EOYAmt>28937</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <InfoInScheduleOPartIIIInd>X</InfoInScheduleOPartIIIInd>
      <PrimaryExemptPurposeTxt>COLLECTION AND REMITENCE OF UNION DUES</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>COLLECTION AND REMITTANCE OF UNION DUES TO THE INTERNATIONAL UNION</DescriptionProgramSrvcAccomTxt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>COLLECTION AND REMITTANCE OF UNION DUES TO THE INTERNATIONAL UNION</DescriptionProgramSrvcAccomTxt>
        <ProgramServiceExpensesAmt>26800</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>26800</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <BusinessName>
          <BusinessNameLine1Txt>CARTER HOFFMAN</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>PRESIDENT</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>000.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd referenceDocumentId="RetDoc2">true</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd>false</OrganizationDissolvedEtcInd>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <BooksInCareOfDetail>
        <BusinessName>
          <BusinessNameLine1Txt>SECRETARY</BusinessNameLine1Txt>
        </BusinessName>
        <USAddress>
          <AddressLine1Txt>1213 TOWER AVENUE</AddressLine1Txt>
          <CityNm>SUPERIOR</CityNm>
          <StateAbbreviationCd>WI</StateAbbreviationCd>
          <ZIPCd>54880</ZIPCd>
        </USAddress>
        <PhoneNum>7153956700</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd referenceDocumentId="RetDoc2">false</PoliticalCampaignActyInd>
    </IRS990EZ>
    <IRS990ScheduleC documentId="RetDoc2">
      <SubstantiallyAllDuesNondedInd>false</SubstantiallyAllDuesNondedInd>
      <OnlyInHouseLobbyingInd>false</OnlyInHouseLobbyingInd>
      <AgreeCarryoverPriorYearInd>false</AgreeCarryoverPriorYearInd>
    </IRS990ScheduleC>
    <IRS990ScheduleO documentId="RetDoc3">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 16</FormAndLineReferenceDesc>
        <ExplanationTxt>EXPENSES OTHER 11,056 TOTAL 11,056</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART I, LINE 20</FormAndLineReferenceDesc>
        <ExplanationTxt>REFUND 187</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990-EZ, PART III, LINE 31</FormAndLineReferenceDesc>
        <ExplanationTxt>COLLECTION AND REMITTANCE OF UNION DUES TO THE INTERNATIONAL UNION</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>