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      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
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      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>TR ROSE ASSOCIATES</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>45 PATRIOTS PLACE</AddressLine1Txt>
            <CityNm>KINGSTON</CityNm>
            <StateAbbreviationCd>NY</StateAbbreviationCd>
            <ZIPCd>12401</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>RESEARCH CONSULTING SERVICES</ServicesDesc>
        <CompensationAmt>539232</CompensationAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>SCHLISSEL TECHNICAL CONSULTING</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
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        </ContractorAddress>
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        <CompensationAmt>227000</CompensationAmt>
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      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>GLENMAR PUBLIC POLICY RESEARCH ASSOCIATE</BusinessNameLine1Txt>
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        </ContractorName>
        <ContractorAddress>
          <USAddress>
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        </ContractorAddress>
        <ServicesDesc>RESEARCH CONSULTING SERVICES</ServicesDesc>
        <CompensationAmt>215724</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
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            <CountryCd>UK</CountryCd>
            <ForeignPostalCd>B93 0PU</ForeignPostalCd>
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        </ContractorAddress>
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      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
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          <USAddress>
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          </USAddress>
        </ContractorAddress>
        <ServicesDesc>RESEARCH CONSULTING SERVICES</ServicesDesc>
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      <TotalContributionsAmt>8544864</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
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        <BusinessCd>541700</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>90000</RelatedOrExemptFuncIncomeAmt>
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        <ExclusionAmt>167861</ExclusionAmt>
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      <OtherRevenueMiscGrp>
        <Desc>FOREIGN CURRENCY GAIN</Desc>
        <BusinessCd>900099</BusinessCd>
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        <ExclusionAmt>6898</ExclusionAmt>
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      <OtherRevenueMiscGrp>
        <Desc>OTHER REVENUE</Desc>
        <BusinessCd>900099</BusinessCd>
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        <ExclusionAmt>2100</ExclusionAmt>
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      <TotalRevenueGrp>
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        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>176859</ExclusionAmt>
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      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
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        <ProgramServicesAmt>1943774</ProgramServicesAmt>
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      <CompCurrentOfcrDirectorsGrp>
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        <ProgramServicesAmt>192322</ProgramServicesAmt>
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        <FundraisingAmt>20493</FundraisingAmt>
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      <FeesForServicesLegalGrp>
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        <ProgramServicesAmt>34614</ProgramServicesAmt>
        <ManagementAndGeneralAmt>84835</ManagementAndGeneralAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>145547</TotalAmt>
        <ManagementAndGeneralAmt>145547</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>2926333</TotalAmt>
        <ProgramServicesAmt>2776706</ProgramServicesAmt>
        <ManagementAndGeneralAmt>83266</ManagementAndGeneralAmt>
        <FundraisingAmt>66361</FundraisingAmt>
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      <AdvertisingGrp>
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        <ProgramServicesAmt>26984</ProgramServicesAmt>
        <ManagementAndGeneralAmt>876</ManagementAndGeneralAmt>
        <FundraisingAmt>376</FundraisingAmt>
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      <OfficeExpensesGrp>
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        <FundraisingAmt>6995</FundraisingAmt>
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      <InformationTechnologyGrp>
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        <ProgramServicesAmt>340170</ProgramServicesAmt>
        <ManagementAndGeneralAmt>47028</ManagementAndGeneralAmt>
        <FundraisingAmt>9350</FundraisingAmt>
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        <ManagementAndGeneralAmt>4280</ManagementAndGeneralAmt>
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      <TravelGrp>
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        <ProgramServicesAmt>517569</ProgramServicesAmt>
        <ManagementAndGeneralAmt>27731</ManagementAndGeneralAmt>
        <FundraisingAmt>955</FundraisingAmt>
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      <InsuranceGrp>
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        <ManagementAndGeneralAmt>28550</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
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      <OtherExpensesGrp>
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      <OtherExpensesGrp>
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      <OtherExpensesGrp>
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        <FundraisingAmt>2833</FundraisingAmt>
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        <EOYAmt>9946978</EOYAmt>
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      <DonorRestrictionNetAssetsGrp>
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      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
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        <ExplanationTxt>OTHER INCOME - 2020 AMOUNT: $ 2,053. 2021 AMOUNT: $ 500. 2022 AMOUNT: $ 600. 2023 AMOUNT: $ 2,100. CURRENCY EXCHANGE LOSS - 2020 AMOUNT: $ -4,115. 2021 AMOUNT: $ 1,046.</ExplanationTxt>
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      <FootnoteTextInd>X</FootnoteTextInd>
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        <ExplanationTxt>THE INSTITUTE PERFORMED AN EVALUATION OF UNCERTAINTY IN INCOME TAXES FOR THE YEAR ENDED DECEMBER 31, 2023 AND DETERMINED THAT THERE WERE NO MATTERS THAT WOULD REQUIRE RECOGNITION IN THE CONSOLIDATED FINANCIAL STATEMENTS OR THAT MAY HAVE ANY EFFECT ON ITS TAX-EXEMPT STATUS.</ExplanationTxt>
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      <AccountActivitiesOutsideUSGrp>
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        <PurposeOfGrantTxt>OPERATING SUPPORT</PurposeOfGrantTxt>
        <CashGrantAmt>1943774</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE TRANSFER</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <Total501c3OrgCnt>1</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <TransferToForeignCorpInd>0</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>0</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>IEEFA US ACTIVELY MONITORS THE USE OF GRANT FUNDS BY IEEFA AUSTRALIA. ON A MONTHLY BASIS, IEEFA AUSTRALIA PROVIDES IEEFA US WITH 1) A RECORD OF ALL EXPENDITURES INCURRED BY IEEFA AUSTRALIA; 2) A MANAGEMENT REPORT WHICH INCLUDES A BALANCE SHEET, PROFIT AND LOSS STATEMENT, AND AR/AP AGING REPORTS; AND 3) A COMPLETED BANK RECONCILIATION AND CORRESPONDING BANK STATEMENT. EACH DOCUMENT IS REVIEWED FOR ACCURACY, AND EACH EXPENDITURE IS REVIEWED PRIOR TO BE ADDED TO THE ACCOUNTING SYSTEM OF IEEFA US. IN ADDITION, IEEFA US HAS ONLINE ACCESS TO THE ACCOUNTING SYSTEM USED BY IEEFA AUSTRALIA.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 3:</FormAndLineReferenceDesc>
        <ExplanationTxt>IEEFA REPORTED THE EXPENDITURES USING ACCRUAL BASIS ACCOUNTING, THE SAME METHOD USED IN ITS AUDITED FINANCIAL STATEMENTS.</ExplanationTxt>
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    </IRS990ScheduleF>
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      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
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        <PersonNm>ALEXANDRA BUCHANAN</PersonNm>
        <TitleTxt>CEO/BOARD SECRETARY</TitleTxt>
        <BaseCompensationFilingOrgAmt>265000</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>10600</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>20280</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>295880</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SARAH WEEKS</PersonNm>
        <TitleTxt>CHIEF FINANCIAL OFFICER</TitleTxt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>SETH FEASTER</PersonNm>
        <TitleTxt>ENERGY DATA ANALYST</TitleTxt>
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        <DeferredCompensationFlngOrgAmt>5865</DeferredCompensationFlngOrgAmt>
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        <NontaxableBenefitsFilingOrgAmt>28852</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>181343</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ABHISHEK SINHA</PersonNm>
        <TitleTxt>ENERGY FINANCE ANALYST, PETCHEMS</TitleTxt>
        <BaseCompensationFilingOrgAmt>161379</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>4851</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>6649</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>1841</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>174720</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>LEA GLAZE</PersonNm>
        <TitleTxt>HR DIRECTOR</TitleTxt>
        <BaseCompensationFilingOrgAmt>132348</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>4009</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>18703</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>155060</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOLLOWING INDIVIDUALS RECEIVED DISCRETIONARY PERFORMANCE BONUSES IN 2023: - VIVIENNE HESTON - $3,600 - SAMUEL REYNOLDS - $3,500 - ABHISHEK SINHA - $4,851 THESE PAYMENTS ARE MADE AT THE DISCRETION OF THE CEO AND CFO. PER IEEFA'S CLASSIFICATION AND COMPENSATION SYSTEM, BONUSES ARE GIVEN RATHER THAN ANNUAL SALARY INCREASES IF AN INDIVIDUAL'S SALARY IS OVER THE MAXIMUM FOR THEIR SALARY RANGE.</ExplanationTxt>
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    </IRS990ScheduleJ>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FEDERAL FORM 990 IS REVIEWED BY ALL MEMBERS OF THE GOVERNING BOARD BEFORE FILING WITH THE INTERNAL REVENUE SERVICE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL OFFICERS, DIRECTORS AND KEY EMPLOYEES FILL OUT THE ANNUAL CONFLICT OF INTEREST DISCLOSURE FORM AND ARE REQUIRED TO DISCLOSE CONFLICTS AS THEY WOULD ARISE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS OF THE GOVERNING BOARD CONDUCT REVIEWS OF COMPENSATION FOR COMPARABLE POSITIONS AND MAKE INDEPENDENT DECISIONS ON COMPENSATION LEVELS. COMPENSATION MANAGEMENT SOFTWARE IS USED TO ANALYZE COMPARABLE MARKET PAY DATA WHEN DETERMINING COMPENSATION.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>FINANCIAL STATEMENTS AND FORM 990S ARE POSTED ON OUR WEBSITE. ADDITIONAL DOCUMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>RESEARCH CONSULTANTS: PROGRAM SERVICE EXPENSES 2,599,907. MANAGEMENT AND GENERAL EXPENSES 56,936. FUNDRAISING EXPENSES 60,818. TOTAL EXPENSES 2,717,661. OTHER CONSULTANTS: PROGRAM SERVICE EXPENSES 107,889. MANAGEMENT AND GENERAL EXPENSES 2,230. FUNDRAISING EXPENSES 2,383. TOTAL EXPENSES 112,502. PAYROLL PROCESSING: PROGRAM SERVICE EXPENSES 62,862. MANAGEMENT AND GENERAL EXPENSES 23,904. FUNDRAISING EXPENSES 3,076. TOTAL EXPENSES 89,842. TRANSLATORS: PROGRAM SERVICE EXPENSES 6,048. MANAGEMENT AND GENERAL EXPENSES 196. FUNDRAISING EXPENSES 84. TOTAL EXPENSES 6,328.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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          <BusinessNameLine1Txt>IEEFA AUSTRALIA LTD</BusinessNameLine1Txt>
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        <ForeignAddress>
          <AddressLine1Txt>91 PERCY STREET</AddressLine1Txt>
          <CityNm>WARWICK</CityNm>
          <ProvinceOrStateNm>QUEENSLAND</ProvinceOrStateNm>
          <CountryCd>AS</CountryCd>
          <ForeignPostalCd>4370</ForeignPostalCd>
        </ForeignAddress>
        <PrimaryActivitiesTxt>CONDUCT ANALYSIS AND PUBLISH AND RELEASE STUDIES</PrimaryActivitiesTxt>
        <LegalDomicileForeignCountryCd>AS</LegalDomicileForeignCountryCd>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>IEEFA</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>1</ControlledOrganizationInd>
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      <GiftGrntOrCapContriToOthOrgInd>1</GiftGrntOrCapContriToOthOrgInd>
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