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        <RelatedOrExemptFuncIncomeAmt>679188</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Section income</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>368927</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>368927</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Annual and spring meetings</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>105075</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>105075</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>Educational workshops</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>30781</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>30781</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>1183971</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>18843</TotalRevenueColumnAmt>
        <ExclusionAmt>18843</ExclusionAmt>
      </InvestmentIncomeGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>1202814</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1183971</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>18843</ExclusionAmt>
      </TotalRevenueGrp>
      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>572194</TotalAmt>
      </CompCurrentOfcrDirectorsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>88988</TotalAmt>
      </OtherSalariesAndWagesGrp>
      <OtherEmployeeBenefitsGrp>
        <TotalAmt>1204</TotalAmt>
      </OtherEmployeeBenefitsGrp>
      <PayrollTaxesGrp>
        <TotalAmt>32298</TotalAmt>
      </PayrollTaxesGrp>
      <FeesForServicesLegalGrp>
        <TotalAmt>15432</TotalAmt>
      </FeesForServicesLegalGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>74362</TotalAmt>
      </FeesForServicesAccountingGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>407661</TotalAmt>
      </FeesForServicesOtherGrp>
      <OfficeExpensesGrp>
        <TotalAmt>22107</TotalAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>17730</TotalAmt>
      </InformationTechnologyGrp>
      <OccupancyGrp>
        <TotalAmt>61517</TotalAmt>
      </OccupancyGrp>
      <TravelGrp>
        <TotalAmt>17946</TotalAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>116176</TotalAmt>
      </ConferencesMeetingsGrp>
      <InterestGrp>
        <TotalAmt>168</TotalAmt>
      </InterestGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>28364</TotalAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>8768</TotalAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Bad debt</Desc>
        <TotalAmt>84872</TotalAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Prof. dues/coalitions</Desc>
        <TotalAmt>35537</TotalAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>1585324</TotalAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>174392</BOYAmt>
        <EOYAmt>504839</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>1151711</BOYAmt>
        <EOYAmt>461089</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <BOYAmt>86497</BOYAmt>
        <EOYAmt>99082</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>44385</BOYAmt>
        <EOYAmt>52229</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <LandBldgEquipCostOrOtherBssAmt>223116</LandBldgEquipCostOrOtherBssAmt>
      <LandBldgEquipAccumDeprecAmt>137507</LandBldgEquipAccumDeprecAmt>
      <LandBldgEquipBasisNetGrp>
        <BOYAmt>111922</BOYAmt>
        <EOYAmt>85609</EOYAmt>
      </LandBldgEquipBasisNetGrp>
      <OtherAssetsTotalGrp>
        <BOYAmt>70870</BOYAmt>
        <EOYAmt>24704</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>1639777</BOYAmt>
        <EOYAmt>1227552</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>149574</BOYAmt>
        <EOYAmt>155584</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>18290</BOYAmt>
        <EOYAmt>16951</EOYAmt>
      </DeferredRevenueGrp>
      <OtherLiabilitiesGrp>
        <BOYAmt>110112</BOYAmt>
        <EOYAmt>75351</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>277976</BOYAmt>
        <EOYAmt>247886</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>1361801</BOYAmt>
        <EOYAmt>979666</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>1361801</BOYAmt>
        <EOYAmt>979666</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>1639777</BOYAmt>
        <EOYAmt>1227552</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>-382510</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>375</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <InfoInScheduleOPartXIIInd>X</InfoInScheduleOPartXIIInd>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleC documentId="RetDoc1039700001">
      <SubstantiallyAllDuesNondedInd>0</SubstantiallyAllDuesNondedInd>
      <OnlyInHouseLobbyingInd>0</OnlyInHouseLobbyingInd>
      <AgreeCarryoverPriorYearInd>0</AgreeCarryoverPriorYearInd>
      <DuesAssessmentsAmt>679188</DuesAssessmentsAmt>
      <NonDeductibleLbbyngPltclCYAmt>110946</NonDeductibleLbbyngPltclCYAmt>
      <NonDedLbbyngPltclCyovAmt>71515</NonDedLbbyngPltclCyovAmt>
      <NonDeductibleLbbyngPltclTotAmt>182461</NonDeductibleLbbyngPltclTotAmt>
      <AggregateReportedDuesNtcAmt>332802</AggregateReportedDuesNtcAmt>
      <TaxableAmt>-150341</TaxableAmt>
    </IRS990ScheduleC>
    <IRS990ScheduleD documentId="RetDoc1040000001">
      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>173515</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>101644</DepreciationAmt>
        <BookValueAmt>71871</BookValueAmt>
      </LeaseholdImprovementsGrp>
      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>42601</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>35863</DepreciationAmt>
        <BookValueAmt>6738</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>7000</OtherCostOrOtherBasisAmt>
        <BookValueAmt>7000</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>85609</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>Deferred rent and lease incentives</Desc>
        <Amt>72570</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Capital lease obligation</Desc>
        <Amt>2781</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>75351</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>1203189</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>375</NetUnrealizedGainsInvstAmt>
      <RevenueNotReportedAmt>375</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>1202814</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>1202814</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>1585324</TotExpnsEtcAuditedFinclStmtAmt>
      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>1585324</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>1585324</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>Management has evaluated the Association's tax positions and concluded that the Association's financial statements do not include any uncertain tax positions.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <Form990OfOtherOrganizationsInd>X</Form990OfOtherOrganizationsInd>
      <WrittenEmploymentContractInd>X</WrittenEmploymentContractInd>
      <CompensationSurveyInd>X</CompensationSurveyInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Mark G Ellis</PersonNm>
        <TitleTxt>President</TitleTxt>
        <BaseCompensationFilingOrgAmt>229901</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>29028</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>37981</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>4478</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>3454</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>408</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>25111</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>2754</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>22356</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>2452</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>318803</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>39120</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Christopher Greissing</PersonNm>
        <TitleTxt>Executive Vice President</TitleTxt>
        <BaseCompensationFilingOrgAmt>173945</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>1055</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>26093</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>158</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>3161</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>19</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>26553</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>275</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>23640</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>245</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>253392</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>1752</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Sch J Part II</FormAndLineReferenceDesc>
        <ExplanationTxt>International Diatomite Producers Association is an affiliated, but unrelated, organization that reimburses allocated staffing costs to IMA-NA. Two officers of the organization, Mark Ellis and Chris Greissing, allocated time to the affiliated organization in 2019. Compensation, deferred compensation, and benefits allocated to, and reimbursed from, the unrelated organizations have been disclosed on Form 990, Part VII, Line 1a, Columns (e) and (f), and on Schedule J Part II, Line (ii), based upon time allocations and actual payroll costs.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part I, Line 1, Description of Organization Mission:</FormAndLineReferenceDesc>
        <ExplanationTxt>The Industrial Minerals Association - North America (IMA-NA) is a trade association created to advance the interests of North American companies that mine or process minerals used throughout the manufacturing and agricultural industries. Examples of minerals represented by the IMA-NA include ball clay, barite, bentonite, borates, calcium carbonate, diatomite, feldspar, industrial sand, kaolin, perlite, soda ash, talc and wollastonite. The IMA-NA is open to membership of industrial minerals producers and companies that provide equipment and services to the industry. IMA-NA operates through a Board of Directors augmented by standing committees and task forces. IMA-NA meetings are held twice a year, and meetings of the committees occur throughout the year on an as-needed basis. Through its committee structure IMA-NA addresses such issues as safety and health, governmental affairs, the environment, industry operations, engineering and technology, research and transportation. The IMA-NA structure makes it possible for the industrial minerals industry to bring its unique focus and an economy of scale to those issues that affect the industry at large. At the same time, because each of the distinct industrial minerals has its own section within the Association, it can address issues particular to each industrial mineral's needs, characteristics and interests. Issues common to more than one industrial mineral are addressed by the IMA-NA committees and Board of Directors, comprised of representatives of each of the industrial mineral groups. The IMA-NA builds upon the many positive relationships that exist between the industrial minerals industry and other related industries, scientific societies, governmental agencies and international bodies.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 1</FormAndLineReferenceDesc>
        <ExplanationTxt>The Executive Committee is composed of the Chairmen of IMA-NA sections and the officers of the Association. As such, they all are elected members of the Board in addition to being members of the Executive Committee. The Executive Committee is authorized by the Board to act on behalf of the Board between board meetings.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>The Sand Section (NISA) was terminated during 2019.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>The Association has dues paying members.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Dues paying members belong to sections and elect the Chairman and Vice Chairman of their section, each of which serves on the Board of Directors and the Chairmen of the sections and officers serve on the Executive Committee.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>IMA-NA will submit its draft Form 990 to the IMA-NA Executive Committee (constituted as the IMA-NA Audit Committee) for review no less than 14 days before its intended filing date and will respond to questions, comments, and suggestions accordingly.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>Persons covered by this policy will voluntarily disclose or update to the Chairman of the Board of Directors their interests that could give rise to conflicts of interest. At least once a year, on or about January 1, IMA-NA will remind persons covered by this policy of their continuing obligation to comply with the policy. Persons covered by this policy will confirm their observance of the policy in writing. Persons covered by this policy are the Association's officers, directors and employees.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The compensation of the person is reviewed and approved by the Compensation Committee of the Association, provided that persons with conflicts of interest with respect to the compensation arrangement at issue are not involved in this review and approval.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>The organization makes its governing documents, conflict of interest policy, and financial statements available to the public upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VII, Section A, Columns (B), (E) and (F) and Schedule J:</FormAndLineReferenceDesc>
        <ExplanationTxt>International Diatomite Producers Association is an affiliated, but unrelated, organization that reimburses allocated staffing costs to IMA-NA. Two officers of the organization, Mark Ellis and Chris Greissing, allocated time to the affiliated organization in 2019. Compensation, deferred compensation, and benefits allocated to, and reimbursed from, the unrelated organizations have been disclosed on Form 990, Part VII, Line 1a, Columns (e) and (f), and on Schedule J Part II, Line (ii), based upon time allocations and actual payroll costs.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, line 11g</FormAndLineReferenceDesc>
        <ExplanationTxt>Professional services- Soda Ash Initiative 207,231. Professional services- Talc Initiative 161,696. Other consulting and professional fees 38,734.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XII, Line 2c:</FormAndLineReferenceDesc>
        <ExplanationTxt>IMA-NA's Audit Committee is responsible for oversight of the audit, including selection of the independent accountant. The process has not changed from prior years.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>