﻿<?xml version="1.0" encoding="utf-8"?>
<Return returnVersion="2025v4.0" xmlns="http://www.irs.gov/efile">
  <ReturnHeader binaryAttachmentCnt="0">
    <ReturnTs>2026-03-13T18:11:43Z</ReturnTs>
    <TaxPeriodEndDt>2025-12-31</TaxPeriodEndDt>
    <ReturnTypeCd>990EZ</ReturnTypeCd>
    <TaxPeriodBeginDt>2025-01-01</TaxPeriodBeginDt>
    <Filer>
      <EIN>943327383</EIN>
      <BusinessName>
        <BusinessNameLine1Txt>OCCUPATIONAL KNOWLEDGE INTERNATIONAL</BusinessNameLine1Txt>
      </BusinessName>
      <BusinessNameControlTxt>OCCU</BusinessNameControlTxt>
      <PhoneNum>4152218900</PhoneNum>
      <USAddress>
        <AddressLine1Txt>PO Box 591207</AddressLine1Txt>
        <CityNm>San Francisco</CityNm>
        <StateAbbreviationCd>CA</StateAbbreviationCd>
        <ZIPCd>94159</ZIPCd>
      </USAddress>
    </Filer>
    <BusinessOfficerGrp>
      <PersonNm>Perry Gottesfeld</PersonNm>
      <PersonTitleTxt>President</PersonTitleTxt>
      <PhoneNum>4152218900</PhoneNum>
      <SignatureDt>2026-03-13</SignatureDt>
    </BusinessOfficerGrp>
    <TaxYr>2025</TaxYr>
    <BuildTS>2025-03-06 01:10:19Z</BuildTS>
  </ReturnHeader>
  <ReturnData documentCnt="3">
    <IRS990EZ documentId="SIMPLE990" documentName="IRS990EZ" referenceDocumentName="IRS990ScheduleO ReasonableCauseExplanation TransfersPersonalBenefitsContractsDeclaration BinaryAttachment">
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <ScheduleBNotRequiredInd>X</ScheduleBNotRequiredInd>
      <WebsiteAddressTxt>www.okinternational.org</WebsiteAddressTxt>
      <Organization501c3Ind referenceDocumentId="ScheduleA" referenceDocumentName="IRS990ScheduleA">X</Organization501c3Ind>
      <TypeOfOrganizationCorpInd>X</TypeOfOrganizationCorpInd>
      <GrossReceiptsAmt>74091</GrossReceiptsAmt>
      <InfoInScheduleOPartIInd>X</InfoInScheduleOPartIInd>
      <ContributionsGiftsGrantsEtcAmt>69456</ContributionsGiftsGrantsEtcAmt>
      <SaleOfAssetsGrossAmt>4635</SaleOfAssetsGrossAmt>
      <CostOrOtherBasisExpenseSaleAmt>0</CostOrOtherBasisExpenseSaleAmt>
      <GainOrLossFromSaleOfAssetsAmt>4635</GainOrLossFromSaleOfAssetsAmt>
      <TotalRevenueAmt>74091</TotalRevenueAmt>
      <GrantsAndSimilarAmountsPaidAmt>20000</GrantsAndSimilarAmountsPaidAmt>
      <SalariesOtherCompEmplBnftAmt>19715</SalariesOtherCompEmplBnftAmt>
      <FeesAndOtherPymtToIndCntrctAmt>500</FeesAndOtherPymtToIndCntrctAmt>
      <PrintingPublicationsPostageAmt>329</PrintingPublicationsPostageAmt>
      <OtherExpensesTotalAmt>8045</OtherExpensesTotalAmt>
      <TotalExpensesAmt>48589</TotalExpensesAmt>
      <ExcessOrDeficitForYearAmt>25502</ExcessOrDeficitForYearAmt>
      <NetAssetsOrFundBalancesBOYAmt>57606</NetAssetsOrFundBalancesBOYAmt>
      <NetAssetsOrFundBalancesEOYAmt>83108</NetAssetsOrFundBalancesEOYAmt>
      <CashSavingsAndInvestmentsGrp>
        <BOYAmt>66535</BOYAmt>
        <EOYAmt>83108</EOYAmt>
      </CashSavingsAndInvestmentsGrp>
      <Form990TotalAssetsGrp>
        <BOYAmt>66535</BOYAmt>
        <EOYAmt>83108</EOYAmt>
      </Form990TotalAssetsGrp>
      <SumOfTotalLiabilitiesGrp>
        <BOYAmt>8929</BOYAmt>
        <EOYAmt>0</EOYAmt>
      </SumOfTotalLiabilitiesGrp>
      <NetAssetsOrFundBalancesGrp>
        <BOYAmt>57606</BOYAmt>
        <EOYAmt>83108</EOYAmt>
      </NetAssetsOrFundBalancesGrp>
      <PrimaryExemptPurposeTxt>Occupational Knowledge is dedicated to improving public health through innovative strategies to reduce exposures to protect public health. We seek to address inequities in environmental standards between developed and developing countries by working in partnership with industry, government and non-governmental organizations (NGOs). Our work is intended to build capacity to address occupational and environmental health in project countries.</PrimaryExemptPurposeTxt>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>In India we provided a grant to our partners to test for lead contamination in soils around industrial sites. The soil samples were tested for lead content. This information will be used to inform regulators and the public about hazardous levels of lead in soil.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>8000</GrantsAndAllocationsAmt>
        <ForeignGrantsInd>X</ForeignGrantsInd>
        <ProgramServiceExpensesAmt>8000</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <ProgramSrvcAccomplishmentGrp>
        <DescriptionProgramSrvcAccomTxt>In Mexico we provided a grant to our partners to purchase paints from retail outlets and test paint samples for lead and chromium content. The project was successful in identifying that more than half of the 213 products tested contained lead in excess of the internationally accepted standard of 90 parts per million. This information was useful to inform ongoing efforts in Mexico to finalize the first ever lead paint standard restricting the lead content of paints.</DescriptionProgramSrvcAccomTxt>
        <GrantsAndAllocationsAmt>12000</GrantsAndAllocationsAmt>
        <ForeignGrantsInd>X</ForeignGrantsInd>
        <ProgramServiceExpensesAmt>14195</ProgramServiceExpensesAmt>
      </ProgramSrvcAccomplishmentGrp>
      <TotalProgramServiceExpensesAmt>22195</TotalProgramServiceExpensesAmt>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Perry Gottesfeld</PersonNm>
        <TitleTxt>President/ Treasurer</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>40.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>19002</CompensationAmt>
        <EmployeeBenefitProgramAmt>1000</EmployeeBenefitProgramAmt>
        <ExpenseAccountOtherAllwncAmt>0</ExpenseAccountOtherAllwncAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Sophia Kisting</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Roberto Lucchini</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Richard Rinehart</PersonNm>
        <TitleTxt>Secretary</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Mark Nicas</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Faridah Were</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Andrea Bosch</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <OfficerDirectorTrusteeEmplGrp>
        <PersonNm referenceDocumentName="CompensationExplanation">Jeffrey Weidenhamer</PersonNm>
        <TitleTxt>Director</TitleTxt>
        <AverageHrsPerWkDevotedToPosRt>1.00</AverageHrsPerWkDevotedToPosRt>
        <CompensationAmt>0</CompensationAmt>
      </OfficerDirectorTrusteeEmplGrp>
      <ActivitiesNotPreviouslyRptInd>false</ActivitiesNotPreviouslyRptInd>
      <ChgMadeToOrgnzngDocNotRptInd>false</ChgMadeToOrgnzngDocNotRptInd>
      <OrganizationHadUBIInd>false</OrganizationHadUBIInd>
      <SubjectToProxyTaxInd referenceDocumentName="IRS990ScheduleC">false</SubjectToProxyTaxInd>
      <OrganizationDissolvedEtcInd referenceDocumentName="IRS990ScheduleN BinaryAttachment">false</OrganizationDissolvedEtcInd>
      <DirectIndirectPltclExpendAmt>0</DirectIndirectPltclExpendAmt>
      <Form1120PolFiledInd>false</Form1120PolFiledInd>
      <MadeLoansToFromOfficersInd>false</MadeLoansToFromOfficersInd>
      <TaxImposedUnderIRC4911Amt>0</TaxImposedUnderIRC4911Amt>
      <TaxImposedUnderIRC4912Amt>0</TaxImposedUnderIRC4912Amt>
      <TaxImposedUnderIRC4955Amt>0</TaxImposedUnderIRC4955Amt>
      <EngagedInExcessBenefitTransInd referenceDocumentName="IRS990ScheduleL">false</EngagedInExcessBenefitTransInd>
      <ProhibitedTaxShelterTransInd>false</ProhibitedTaxShelterTransInd>
      <StatesWhereCopyOfReturnIsFldCd>CA</StatesWhereCopyOfReturnIsFldCd>
      <BooksInCareOfDetail>
        <PersonNm>Perry Gottesfeld</PersonNm>
        <USAddress>
          <AddressLine1Txt>PO Box 591207</AddressLine1Txt>
          <CityNm>San Francisco</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>94118</ZIPCd>
        </USAddress>
        <PhoneNum>4152218900</PhoneNum>
      </BooksInCareOfDetail>
      <ForeignFinancialAccountInd>false</ForeignFinancialAccountInd>
      <ForeignOfficeInd>false</ForeignOfficeInd>
      <DonorAdvisedFndsInd>false</DonorAdvisedFndsInd>
      <OperateHospitalInd>false</OperateHospitalInd>
      <TanningServicesProvidedInd>false</TanningServicesProvidedInd>
      <RelatedOrganizationCtrlEntInd>false</RelatedOrganizationCtrlEntInd>
      <TransactionWithControlEntInd>false</TransactionWithControlEntInd>
      <PoliticalCampaignActyInd referenceDocumentName="IRS990ScheduleC">false</PoliticalCampaignActyInd>
      <LobbyingActivitiesInd referenceDocumentName="IRS990ScheduleC">false</LobbyingActivitiesInd>
      <SchoolOperatingInd referenceDocumentName="IRS990ScheduleE">false</SchoolOperatingInd>
      <TrnsfrExmptNonChrtblRltdOrgInd>false</TrnsfrExmptNonChrtblRltdOrgInd>
      <PartVIOfCompOfHghstPdEmplTxt>NONE</PartVIOfCompOfHghstPdEmplTxt>
      <OtherEmployeePaidOver100kCnt>0</OtherEmployeePaidOver100kCnt>
      <PartVIHghstPdCntrctProfSrvcTxt>NONE</PartVIHghstPdCntrctProfSrvcTxt>
      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
      <FiledScheduleAInd>true</FiledScheduleAInd>
    </IRS990EZ>
    <IRS990ScheduleA documentId="ScheduleA" documentName="IRS990ScheduleA">
      <PublicOrganization170Ind>X</PublicOrganization170Ind>
      <SupportedOrganizationsCnt>0</SupportedOrganizationsCnt>
      <GiftsGrantsContriRcvd170Grp>
        <CurrentTaxYearMinus4YearsAmt>116845</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>23605</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>48525</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>59334</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>74091</CurrentTaxYearAmt>
        <TotalAmt>322400</TotalAmt>
      </GiftsGrantsContriRcvd170Grp>
      <TotalCalendarYear170Grp>
        <CurrentTaxYearMinus4YearsAmt>116845</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>23605</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>48525</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>59334</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>74091</CurrentTaxYearAmt>
        <TotalAmt>322400</TotalAmt>
      </TotalCalendarYear170Grp>
      <PublicSupportTotal170Amt>322400</PublicSupportTotal170Amt>
      <TotalSupportAmt>322400</TotalSupportAmt>
      <PublicSupportCY170Pct>1.00000</PublicSupportCY170Pct>
      <PublicSupportPY170Pct>1.00000</PublicSupportPY170Pct>
      <ThirtyThrPctSuprtTestsCY170Ind>X</ThirtyThrPctSuprtTestsCY170Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleO documentId="ScheduleO" documentName="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 10</FormAndLineReferenceDesc>
        <ExplanationTxt>Grant to Casa Cem $12,000 for testing for lead in paints in Mexico to encourage reformulation and regulation. Grant to Toxics Link $8,000 for testing for lead in soil in India.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part I, Line 16</FormAndLineReferenceDesc>
        <ExplanationTxt>Office supplies, telephone, dues, bank service charges and travel</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>