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      <Form990PartVIISectionAGrp>
        <PersonNm>VESNA BOSNIC</PersonNm>
        <TitleTxt>DATABASE MANAGER/SENIOR DATABASE PROGRAMMER</TitleTxt>
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        <HighestCompensatedEmployeeInd>X</HighestCompensatedEmployeeInd>
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        <OtherCompensationAmt>36185</OtherCompensationAmt>
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      <TotalReportableCompFromOrgAmt>1381240</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>353066</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>15</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>1</TotalCompGreaterThan150KInd>
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      <CntrctRcvdGreaterThan100KCnt>0</CntrctRcvdGreaterThan100KCnt>
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      <TotalContributionsAmt>40943</TotalContributionsAmt>
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        <RelatedOrExemptFuncIncomeAmt>9691761</RelatedOrExemptFuncIncomeAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>DENVER CONFERENCE INCOME</Desc>
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      <ProgramServiceRevenueGrp>
        <Desc>COURSE REVENUE</Desc>
        <BusinessCd>541700</BusinessCd>
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        <RelatedOrExemptFuncIncomeAmt>95750</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>POWDER DIFF JOURNAL</Desc>
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        <UnrelatedBusinessRevenueAmt>992</UnrelatedBusinessRevenueAmt>
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      <ProgramServiceRevenueGrp>
        <Desc>WORKSHOPS AND TRAINING</Desc>
        <BusinessCd>541700</BusinessCd>
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      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>10104974</TotalProgramServiceRevenueAmt>
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        <TotalRevenueColumnAmt>651947</TotalRevenueColumnAmt>
        <ExclusionAmt>651947</ExclusionAmt>
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      <GrossAmountSalesAssetsGrp>
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      <GainOrLossGrp>
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      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>1182863</TotalRevenueColumnAmt>
        <ExclusionAmt>1182863</ExclusionAmt>
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      <OtherRevenueMiscGrp>
        <Desc>SOLAR INCOME</Desc>
        <BusinessCd>900099</BusinessCd>
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        <ExclusionAmt>20004</ExclusionAmt>
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      <MiscellaneousRevenueGrp>
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        <ExclusionAmt>39726</ExclusionAmt>
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      <TotalRevenueGrp>
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        <ExclusionAmt>1894540</ExclusionAmt>
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      <GrantsToDomesticOrgsGrp>
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        <ProgramServicesAmt>30955</ProgramServicesAmt>
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      <GrantsToDomesticIndividualsGrp>
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        <ProgramServicesAmt>329577</ProgramServicesAmt>
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      <CompCurrentOfcrDirectorsGrp>
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        <ProgramServicesAmt>401775</ProgramServicesAmt>
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      <PayrollTaxesGrp>
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        <ManagementAndGeneralAmt>44582</ManagementAndGeneralAmt>
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        <ProgramServicesAmt>1130880</ProgramServicesAmt>
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      <TravelGrp>
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        <ProgramServicesAmt>25308</ProgramServicesAmt>
        <ManagementAndGeneralAmt>32812</ManagementAndGeneralAmt>
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      <ConferencesMeetingsGrp>
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        <ProgramServicesAmt>169411</ProgramServicesAmt>
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      <InsuranceGrp>
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        <ManagementAndGeneralAmt>79496</ManagementAndGeneralAmt>
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      <OtherExpensesGrp>
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        <ProgramServicesAmt>16548</ProgramServicesAmt>
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      <OtherExpensesGrp>
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      <TotalFunctionalExpensesGrp>
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        <FundraisingAmt>0</FundraisingAmt>
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      <CashNonInterestBearingGrp>
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        <EOYAmt>945</EOYAmt>
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      <SavingsAndTempCashInvstGrp>
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        <EOYAmt>3978324</EOYAmt>
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      <AccountsReceivableGrp>
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      <PrepaidExpensesDefrdChargesGrp>
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        <EOYAmt>379689</EOYAmt>
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      <LandBldgEquipCostOrOtherBssAmt>10742068</LandBldgEquipCostOrOtherBssAmt>
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      <LandBldgEquipBasisNetGrp>
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        <EOYAmt>4207049</EOYAmt>
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      <InvestmentsPubTradedSecGrp>
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        <EOYAmt>24596719</EOYAmt>
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      <IntangibleAssetsGrp>
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      <TotalAssetsGrp>
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      <AccountsPayableAccrExpnssGrp>
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      <DeferredRevenueGrp>
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      <OtherLiabilitiesGrp>
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        <EOYAmt>9047736</EOYAmt>
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      <TotalLiabilitiesGrp>
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      <DonorRestrictionNetAssetsGrp>
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      <TotLiabNetAssetsFundBalanceGrp>
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      <InvestmentIncomePYPct>0.04720</InvestmentIncomePYPct>
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      <OtherLiabilitiesOrgGrp>
        <Desc>OPERATING LEASE LIABILITIES</Desc>
        <Amt>130454</Amt>
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      <TotalLiabilityAmt>9047736</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>11626552</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-413905</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>-413905</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>12040457</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>12040457</TotalRevenuePerForm990Amt>
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      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>10132293</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>10132293</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART V, LINE 4:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FUND WAS ESTABLISHED TO PROMOTE THE COLLECTION AND EVALUATION OF POWDER DIFFRACTION DATA. THE FUND SPONSORS SUITABLE RESEARCH PROJECTS FOR THE IMPROVEMENT, DEVELOPMENT, AND UTILIZATION OF DIFFRACTION DATA.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>IN ACCORDANCE WITH FINANCIAL ACCOUNTING STANDARDS BOARD ("FASB") ACCOUNTING STANDARDS CODIFICATION ("ASC") 740, ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES, MANAGEMENT EVALUATES THE TAX POSITIONS TAKEN OR EXPECTED TO BE TAKEN DURING THE PREPARATION OF THE INTERNATIONAL CENTRE'S TAX RETURNS TO DETERMINE WHETHER ITS TAX POSITIONS ARE MORE-LIKELY-THAN-NOT OF BEING SUSTAINED UPON EXAMINATION BY THE APPLICABLE TAX AUTHORITY. MANAGEMENT BELIEVES ANY SUCH POSITIONS WOULD BE IMMATERIAL TO THE FINANCIAL STATEMENTS.</ExplanationTxt>
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      <AccountActivitiesOutsideUSGrp>
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      <AccountActivitiesOutsideUSGrp>
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        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
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      <AccountActivitiesOutsideUSGrp>
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        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>13760</RegionTotalExpendituresAmt>
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      <AccountActivitiesOutsideUSGrp>
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        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
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      <AccountActivitiesOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND)</RegionTxt>
        <OfficesCnt>0</OfficesCnt>
        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>GRANTMAKING</TypeOfActivitiesConductedTxt>
        <RegionTotalExpendituresAmt>110735</RegionTotalExpendituresAmt>
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      <SubtotalSpentAmt>481704</SubtotalSpentAmt>
      <ContinuationSpentAmt>0</ContinuationSpentAmt>
      <TotalSpentAmt>481704</TotalSpentAmt>
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        <PurposeOfGrantTxt>XRD PATTERNS FOR MN/FE-BASED COMPOUNDS</PurposeOfGrantTxt>
        <CashGrantAmt>14438</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
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      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>EAST ASIA AND THE PACIFIC</RegionTxt>
        <PurposeOfGrantTxt>STANDARD X-RAY POWDER DIFFRACTION DATA OF NEW MICROWAVE DIELECTRIC CERAMICS</PurposeOfGrantTxt>
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        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
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      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND)</RegionTxt>
        <PurposeOfGrantTxt>CONTRACT FOR PDJ PUBLISHING OF PHARMA ENTRIES FOR PHARMACEUTICAL GRANT</PurposeOfGrantTxt>
        <CashGrantAmt>16236</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND)</RegionTxt>
        <PurposeOfGrantTxt>XRPD INVESTIGATIONS OF MEX2-2 (R-NH2) AND MEX2 (NH2-R-HN2) COMPLEXES PART X</PurposeOfGrantTxt>
        <CashGrantAmt>8944</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
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      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND)</RegionTxt>
        <PurposeOfGrantTxt>X-RAY POWDER DIFFRACTION PATTERNS OF NEW MATERIALS FOR STORAGE SYSTEMS</PurposeOfGrantTxt>
        <CashGrantAmt>10080</CashGrantAmt>
        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
      </GrantsToOrgOutsideUSGrp>
      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>EUROPE (INCLUDING ICELAND &amp; GREENLAND)</RegionTxt>
        <PurposeOfGrantTxt>X-RAY DIFFRACTION PATTERNS OF ELEMENTOORGANIC COMPOUNDS</PurposeOfGrantTxt>
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        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
        <NonCashAssistanceAmt>0</NonCashAssistanceAmt>
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      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>MIDDLE EAST AND NORTH AFRICA</RegionTxt>
        <PurposeOfGrantTxt>X-RAY DATA OF 18 BINARY RARE EARTH OXIDES</PurposeOfGrantTxt>
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        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
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        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
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      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>RUSSIA AND NEIGHBORING STATES</RegionTxt>
        <PurposeOfGrantTxt>NEW MIXED RARE EARTH GARNETS, OXIDES AND PHOSPHATES MATERIALS, NEW MULTIFUNCTIONAL MATERIALS BASES ON RARE EARTH ELEMENTS, INTERMETALLIC COMPOUNDS BASED ON RARE EARCH METALS, XRD PATTERNS OF THE RARE EARTH BASED INTERMETALLIC COMPOUNDS</PurposeOfGrantTxt>
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        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
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      <GrantsToOrgOutsideUSGrp>
        <RegionTxt>RUSSIA AND NEIGHBORING STATES</RegionTxt>
        <PurposeOfGrantTxt>X-RAY POWDER DIFFRACTION PATTERNS OF NEW MATERIALS FOR ENERGY STORAGE SYSTEMS</PurposeOfGrantTxt>
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        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
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        <MannerOfCashDisbursementTxt>WIRE</MannerOfCashDisbursementTxt>
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      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ICDD EXTENDS FINANCIAL SUPPORT TO QUALIFIED INVESTIGATORS, IN THE FORM OF GRANTS-IN-AID AWARDED ON A COMPETING PROPOSAL BASIS, FOR THE PREPARATION OF REFERENCE X-RAY POWDER DIFFRACTION DATA. ALL APPLICATIONS FOR GRANTS-IN-AID ARE REVIEWED BY A GRANT-IN-AID (GIA) COMMITTEE. THE GOAL OF THE GIA COMMITTEE IS TO MAXIMIZE THE NUMBER AND QUALITY OF PATTERNS THAT ARE PRODUCED THROUGH THE PROGRAM AND ACCEPTED FOR INCLUSION IN THE PDF. PRIORITY IS GIVEN TO REFERENCE PATTERNS EXPECTED TO BE OF MOST INTEREST AND VALUE TO CURRENT AND FUTURE PDF USERS. GIA PATTERNS SHOULD BE WELL-CHARACTERIZED SINGLE PHASES. INDEXING SHOULD BE A NECESSARY REQUIREMENT IN ALL BUT THE RAREST AND BEST DEFENDED CASES. LOCAL ECONOMIC CONDITIONS ARE FACTORED IN THE REASONABLENESS OF THE EXPECTED COST PER PATTERN. RENEWALS ARE CONSIDERED ONLY IF THE STATED SCIENTIFIC GOALS WERE ACHIEVED WITHIN THE STATED DEADLINES. SUBMISSIONS ARE MONITORED, IN BOTH NUMBER AND QUALITY, BY THE GRANT COORDINATOR AND ICDD EDITORS. MID-TERM AND FINAL REPORTS ARE REQUIRED AND REVIEWED BY THE EDITOR-IN-CHIEF.</ExplanationTxt>
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        <PurposeOfGrantTxt>TEMPERATURE DEPENDENT LATTICE CONSTANTS OF NEGATIVE THERMAL EXPANSION MATERIAL</PurposeOfGrantTxt>
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      <RecipientTable>
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          <CityNm>NAPERVILLE</CityNm>
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        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>1510</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>12071</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>25088</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>213572</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>VESNA BOSNIC</PersonNm>
        <TitleTxt>DATABASE MANAGER/SENIOR DATABASE PRO</TitleTxt>
        <BaseCompensationFilingOrgAmt>128871</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>7750</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>3152</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>13292</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>22893</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>175958</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DENISE FLAHERTY</PersonNm>
        <TitleTxt>CORPORATE SECRETARY</TitleTxt>
        <BaseCompensationFilingOrgAmt>81827</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>7750</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>344</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>42092</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>19297</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>151310</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 7</FormAndLineReferenceDesc>
        <ExplanationTxt>BONUSES WERE AWARDED TO EMPLOYEES DURING THE YEAR. A SET AMOUNT WAS ALLOCATED FOR EACH EMPLOYEE, WHICH WAS PRORATED FOR EMPLOYEES AT ICDD FOR LESS THAN ONE YEAR AND PART-TIME. IN ADDITION, A DISCRETIONARY TOTAL WAS GIVEN TO THE EXECUTIVE DIRECTOR, WHICH WAS DISTRIBUTED BY ALLOCATING A PORTION TO EACH MANAGER AS A DISCRETIONARY BONUS AND ALLOCATING A TOTAL TO EACH MANAGER TO DO THE SAME FOR THE EMPLOYEES IN THEIR DEPARTMENT. THE BOARD OF DIRECTORS, AT THEIR ANNUAL MEETING, SET THE BONUS FOR THE EXECUTIVE DIRECTOR.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleL documentId="RetDoc1042800001">
      <GrntAsstBnftInterestedPrsnGrp>
        <PersonNm>POLY CRYSTALLOGRAPHY INC</PersonNm>
        <RelationshipWithOrgTxt>OWNED BY BOARD TREASURER</RelationshipWithOrgTxt>
        <CashGrantAmt>25375</CashGrantAmt>
        <TypeOfAssistanceTxt>GRANT</TypeOfAssistanceTxt>
        <AssistancePurposeTxt>RESEARCH &amp; SPECIAL PROJECTS</AssistancePurposeTxt>
      </GrntAsstBnftInterestedPrsnGrp>
    </IRS990ScheduleL>
    <IRS990ScheduleM documentId="RetDoc1042900001">
      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>EQUIPMENT</Desc>
        <ContributionCnt>1</ContributionCnt>
        <NoncashContributionsRptF990Amt>29523</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>FMV</MethodOfDeterminingRevenuesTxt>
      </OtherNonCashContriTableGrp>
      <Form8283ReceivedCnt>0</Form8283ReceivedCnt>
      <AnyPropertyThatMustBeHeldInd>0</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>0</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>0</ThirdPartiesUsedInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, COLUMN (B):</FormAndLineReferenceDesc>
        <ExplanationTxt>THE AMOUNT REPORTED IN COLUMN BE IS THE NUMBER OF CONTRIBUTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleM>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 1A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE EXECUTIVE COMMITTEE SHALL CONSIST OF THE CHAIRMAN, THE VICE CHAIRMAN, THE TREASURER (IF AN INDIVIDUAL) AND ONE-DIRECTOR-AT-LARGE TO BE CHOSEN BY THE FIVE DIRECTORS-AT-LARGE. THE EXECUTIVE DIRECTOR, THE CORPORATE SECRETARY AND THE TREASURER (IF NOT AN INDIVIDUAL) SHALL BE NON VOTING MEMBERS OF THE EXECUTIVE COMMITTEE. THE EXECUTIVE COMMITTEE SHALL EXERCISE ALL THE GENERAL POWERS OF THE BOARD OF DIRECTORS BETWEEN MEETINGS OF THE BOARD EXCEPT AS OTHERWISE PROVIDED BY THE BOARD OF DIRECTORS OR BY LAW.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERSHIP OF INTERNATIONAL CENTRE FOR DIFFRACTION DATA ("ICDD") SHALL CONSIST OF TWO CLASSES: ACTIVE MEMBERS AND ASSOCIATE MEMBERS. ACTIVE MEMBERSHIP SHALL BE OPEN TO APPLICANTS PROFESSIONALLY INVOLVED WITH MATERIALS CHARACTERIZATION. APPLICANTS SHALL BE ELECTED BY THE ICDD BOARD OF DIRECTORS UPON NOMINATION FOR ACTIVE MEMBERSHIP BY THE MEMBERSHIP COMMITTEE, SUBJECT TO THE BOARD'S REVIEW AND APPROVAL OF THE APPLICANTS' QUALIFICATIONS. ASSOCIATE MEMBERS SHALL CONSIST OF ACTIVE MEMBERS RECLASSIFIED AS ASSOCIATE MEMBERS IN CERTAIN CIRCUMSTANCES. ASSOCIATE MEMBERS ARE NOT ELIGIBLE TO VOTE. A MEMBERSHIP CLASSIFICATION ENTITLED AFFILIATES SHALL BE OPEN TO STUDENTS STUDYING MATERIALS CHARACTERIZATION METHODS. APPLICANTS SHALL BE ELECTED BY THE BOARD UPON NOMINATION FOR AFFILIATE BY THE MEMBERSHIP COMMITTEE, SUBJECT TO THE BOARD'S REVIEW AND APPROVAL OF THE APPLICANTS' QUALIFICATIONS. AFFILIATES ARE NOT ELIGIBLE TO VOTE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ELECTION OF THE CHAIRMAN, VICE CHAIRMAN, CHAIRMAN OF THE TECHNICAL COMMITTEE AND DIRECTORS-AT-LARGE SHALL BE HELD IN CONJUNCTION WITH THE ANNUAL MEETING OF MEMBERS IN THE EVEN-NUMBERED YEARS IN ACCORDANCE WITH THE PROCEDURES SET FORTH IN THE ORGANIZATION'S BYLAWS. AT ANY DULY ORGANIZED MEETING OF MEMBERS CALLED FOR THAT PURPOSE, THE ACTIVE MEMBERS MAY, BY THE VOTE OF THE MEMBERS PRESENT, IN PERSON OR BY PROXY, ENTITLED TO CAST AT LEAST THREE-FIFTHS OF THE VOTES WHICH ALL MEMBERS PRESENT AND VOTING ARE ENTITLED TO CAST, REMOVE FROM OFFICE ANY DIRECTOR SUBJECT TO ELECTION BY THE MEMBERS, WITH OR WITHOUT CAUSE, AND MAY, IN THE CASE OF THE REMOVAL OF ANY SUCH DIRECTOR, ELECT A REPLACEMENT AT THE SAME MEETING TO SERVE IN THE OFFICE AND FOR THE REMAINDER OF THE TERM OF THE REMOVED DIRECTOR.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>EXCEPT AS OTHERWISE PROVIDED BY LAW, AMENDMENTS TO THE ORGANIZATION'S BYLAWS MAY BE MADE BY THE BOARD OF DIRECTORS OR BY THE ACTIVE MEMBERS AT ANY MEETING DULY CONVENED AFTER NOTICE OF THAT PURPOSE. THE PENNSYLVANIA NONPROFIT CORPORATION LAW PROHIBITS THE BOARD OF DIRECTORS FROM AMENDING PROVISIONS OF THE BYLAWS THAT RELATE TO SEVERAL AREAS, SUCH AS THE SELECTION OF DIRECTORS, REMOVAL OF DIRECTORS, VOTING RIGHTS OF DIRECTORS, CLASSIFICATION OF MEMBERS, QUORUM AND VOTING REQUIREMENTS FOR MEMBERS AND VOTING BY PROXY. ONLY THE MEMBERS MAY AMEND THESE PROVISIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>DRAFT COPIES OF THE 990 AND 990T ARE SENT ELECTRONICALLY TO THE BOARD APPROVED COMMITTEE (AUDIT REVIEW COMMITTEE) TO REVIEW PRIOR TO FILING. THE COMMITTEE IS MADE OF UP OF THREE MEMBERS OF THE BOARD OF DIRECTORS: CHAIRMAN OF THE BOARD, CHAIRMAN OF THE TECHNICAL COMMITTEE AND TREASURER.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION'S CONFLICT OF INTEREST POLICY APPLIES TO ALL EMPLOYEES AND THE MEMBERS OF THE BOARD OF DIRECTORS. IN ADDITION, THE POLICY IS INTENDED TO BE A GENERAL GUIDELINE FOR ANY MEMBER, COMMITTEE, OR SUBCOMMITTEE THAT MAKES FINANCIAL RECOMMENDATIONS TO THE BOARD. IF EMPLOYEES AND BOARD MEMBERS HAVE AN INFLUENCE ON TRANSACTIONS INVOLVING PURCHASES, CONTRACTS OR LEASES IT IS IMPERATIVE THAT THEY DISCLOSE TO AN OFFICER OF THE ORGANIZATION, AS SOON AS POSSIBLE, THE EXISTENCE OF ANY ACTUAL OR POTENTIAL CONFLICT OF INTEREST SO THAT SAFEGUARDS CAN BE ESTABLISHED TO PROTECT ALL PARTIES. EMPLOYEES ARE REQUIRED TO SIGN A DECLARATION OF CONFLICTS OF INTERESTS AS A REQUIREMENT FOR EMPLOYMENT. MEMBERS OF THE BOARD OF DIRECTORS ARE REQUIRED TO SUBMIT A DECLARATION AS PART OF THE NOMINATION PROCESS AND BIENNIALLY WITH THE INDUCTION OF THE NEW DIRECTORS. BOTH PARTIES ARE OBLIGATED TO REPORT IN WRITING TO THE OFFICERS OF THE ORGANIZATION, ANY CONFLICT OF INTEREST WHEN THEY BECOME AWARE OF THEM. A CONFLICTS DISCLOSURE STATEMENT IS PROVIDED FOR THIS PURPOSE. FOR EMPLOYEES, FAILURE TO DISCLOSE WILL BE SUBJECT TO ACTION UP TO AND INCLUDING TERMINATION. FOR DIRECTORS, FAILURE TO DISCLOSE WILL BE SUBJECT TO ACTION UP TO AND INCLUDING REMOVAL FROM OFFICE, FOLLOWING PROCEDURES DESCRIBED IN THE ORGANIZATION'S BYLAWS. A DIRECTOR OR EMPLOYEE SHALL ABSTAIN FROM VOTING UPON ANY MATTER IN WHICH THAT PERSON HAS A POTENTIAL CONFLICT OF INTEREST. ABSTENTIONS SHALL BE DECLARED TO THE SECRETARY OF THE APPLICABLE MEETING AND DULY RECORDED IN THE MINUTES THEREOF.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15</FormAndLineReferenceDesc>
        <ExplanationTxt>TO MONITOR COMPENSATION FOR ALL EMPLOYEES AS WELL AS THE EXECUTIVE DIRECTOR, ICDD PARTICIPATES AND RECEIVES SEVERAL SURVEYS THROUGHOUT THE YEAR. THE GROUPS THAT SPONSOR THESE SURVEYS ARE COLLECTING INFORMATION FROM OTHER ORGANIZATIONS RELATED TO ICDD IN TERMS OF TYPE (NON-PROFIT), SIZE AND SCIENTIFIC ORGANIZATION. TO ENSURE THAT THE SALARIES ARE COMPARED EQUALLY, ICDD MAINTAINS JOB DESCRIPTIONS AND SALARY SCALES FOR EACH POSITION OFFERED. THIS INFORMATION IS VERIFIED ANNUALLY TO ENSURE WE ARE KEEPING UP WITH CURRENT TRENDS AND BENCHMARKS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL CONFLICT OF INTEREST DOCUMENTS AND FINANCIAL REPORTS ARE MAINTAINED AT THE ICDD HEADQUARTERS. THEY ARE AVAILABLE FOR THE MEMBERS AND THE GENERAL PUBLIC TO REVIEW AT ANYTIME DURING ICDD BUSINESS HOURS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>PENSION AND POST-RETIREMENT-RELATED CHANGES -47,574.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>