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        <BusinessNameLine1>EXELON CORP EES' BEN TRUST FOR UNION EES 22-10300</BusinessNameLine1>
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        <State>IL</State>
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      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION A, LINE 6</ReturnReference>
        <Explanation>MEMBERS PARTICIPATE IN THE SPONSOR HEALTH BENEFIT PLANS AND RECEIVE MEDICAL BENEFITS FROM THE FUNDED VEBA.</Explanation>
      </GeneralExplanation>
      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 11</ReturnReference>
        <Explanation>THE ORGANIZATION USES A CPA FIRM TO PREPARE FORM 990. THE RETURN IS REVIEWED BY EXELON ACCOUNTING, CORPORATE BENEFITS AND LEGAL DEPARTMENTS. THE RETURN IS REVIEWED BY THE PARTIES WHO ADMINISTER THE HEALTH AND WELFARE PLANS THAT ARE FUNDED BY THE ORGANIZATION AND MANAGE THE ASSETS OF THE ORGANIZATION. AS SUCH ALL RESPONSIBLE GOVERNING BODIES REVIEW AND APPROVE THE RETURN PRIOR TO FILING.</Explanation>
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      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION B, LINE 12C</ReturnReference>
        <Explanation>ALL PARTIES RESPONSIBLE FOR PLAN ASSETS ARE SUBJECT TO THE EXELON CORPORATION CONFLICT OF INTEREST POLICY. EXELON REGULARLY MONITORS COMPLIANCE WITH ITS CONFLICT OF INTEREST POLICY. THE ORGANIZATION DOES NOT PAY ANY COMPENSATION. CONSEQUENTLY LINES 15A AND 15B ARE NOT APPLICABLE TO THIS ORGANIZATION.</Explanation>
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      <GeneralExplanation>
        <ReturnReference>FORM 990, PART VI, SECTION C, LINE 19</ReturnReference>
        <Explanation>THE ORGANIZATION MAKES ITS FORM 1024, FORM 990, GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE UPON REQUEST.</Explanation>
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      <GeneralExplanation>
        <Explanation>THIS ORGANIZATION IS A VOLUNTARY EMPLOYEES' BENEFICIARY ASSOCIATIONS TRUST UNDER IRC 501(C)(9). THIS ORGANIZATION FUNDS HEALTHCARE BENEFITS PROVIDED UNDER CERTAIN HEALTH AND WELFARE PLANS SPONSORED BY EXELON CORPORATION FOR ITS EMPLOYEES AND THEIR ELIGIBLE DEPENDENTS. THIS ORGANIZATION FOLLOWS EXELON'S CORPORATE POLICIES WHERE APPLICABLE INCLUDING PROPER DOCUMENTATION OF ALL ACTIONS TAKEN ON BEHALF OF THE PLAN.</Explanation>
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        <Identifier>CHANGES IN NET ASSETS OR FUND BALANCES:</Identifier>
        <ReturnReference>FORM 990, PART XI, LINE 5:</ReturnReference>
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        <EIN>363978082</EIN>
        <PrimaryActivities>EMPLOYEE BENEFITS</PrimaryActivities>
        <LegalDomicileState>DE</LegalDomicileState>
        <ExemptCodeSection>501(C)(9)</ExemptCodeSection>
        <DirectControllingEntityName>
          <BusinessNameLine1>EXELON CORPORATION</BusinessNameLine1>
        </DirectControllingEntityName>
        <ControlledOrg>0</ControlledOrg>
      </Form990ScheduleRPartII>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>EXELON CORPORATION</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>10 SOUTH DEARBORN 51ST FLOOR</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60603</ZIPCode>
        </AddressUS>
        <EIN>222990190</EIN>
        <PrimaryActivity>GENERATION AND DISTRIBUTION</PrimaryActivity>
        <LegalDomicileState>DE</LegalDomicileState>
        <DirectControllingEntityNA>N/A</DirectControllingEntityNA>
        <TypeOfEntity>C</TypeOfEntity>
      </Form990ScheduleRPartIV>
      <Form990ScheduleRPartIV>
        <NameOfRelatedOrg>
          <BusinessNameLine1>COMED</BusinessNameLine1>
        </NameOfRelatedOrg>
        <AddressUS>
          <AddressLine1>10 SOUTH DEARBORN 51ST FLOOR</AddressLine1>
          <City>CHICAGO</City>
          <State>IL</State>
          <ZIPCode>60603</ZIPCode>
        </AddressUS>
        <EIN>360938600</EIN>
        <PrimaryActivity>ELECTRIC DISTRIBUTION UTILITY</PrimaryActivity>
        <LegalDomicileState>DE</LegalDomicileState>
        <DirectControllingEntityName>
          <BusinessNameLine1>EXELON CORPORATION</BusinessNameLine1>
        </DirectControllingEntityName>
        <TypeOfEntity>C</TypeOfEntity>
      </Form990ScheduleRPartIV>
      <ReceiptOfIntAnnRentsRoyalties>0</ReceiptOfIntAnnRentsRoyalties>
      <GiftGrantOrCapContrToOtherOrg>0</GiftGrantOrCapContrToOtherOrg>
      <GiftGrantOrCapContrFrOtherOrg>0</GiftGrantOrCapContrFrOtherOrg>
      <LoansOrGuaranteesToOtherOrg>0</LoansOrGuaranteesToOtherOrg>
      <LoansOrGuaranteesFromOtherOrg>0</LoansOrGuaranteesFromOtherOrg>
      <SaleOfAssetsToOtherOrg>0</SaleOfAssetsToOtherOrg>
      <PurchaseOfAssetsFromOtherOrg>0</PurchaseOfAssetsFromOtherOrg>
      <ExchangeOfAssets>0</ExchangeOfAssets>
      <RentalOfFacilitiesToOtherOrgs>0</RentalOfFacilitiesToOtherOrgs>
      <RentalOfFacilitiesFrOtherOrgs>0</RentalOfFacilitiesFrOtherOrgs>
      <PerformOfServicesForOtherOrgs>0</PerformOfServicesForOtherOrgs>
      <PerformOfServicesByOtherOrgs>0</PerformOfServicesByOtherOrgs>
      <SharingOfFacilities>0</SharingOfFacilities>
      <SharingOfPaidEmployees>0</SharingOfPaidEmployees>
      <ReimbursementPaidToOtherOrg>1</ReimbursementPaidToOtherOrg>
      <ReimbursementPaidByOtherOrg>0</ReimbursementPaidByOtherOrg>
      <OtherTransferToOtherOrg>0</OtherTransferToOtherOrg>
      <OtherTransferFromOtherOrg>1</OtherTransferFromOtherOrg>
      <TransactionsRelatedOrgsTable>
        <NameOfOtherOrganization>
          <BusinessNameLine1>EXELON GENERATION CO LLC</BusinessNameLine1>
        </NameOfOtherOrganization>
        <TransactionType>R</TransactionType>
        <AmountInvolved>40206407</AmountInvolved>
        <MethodOfAmtDetermination>MAINTAINED RECORDS AT FMV</MethodOfAmtDetermination>
      </TransactionsRelatedOrgsTable>
      <TransactionsRelatedOrgsTable>
        <NameOfOtherOrganization>
          <BusinessNameLine1>EXELON BUSINESS SERVCS CO LLC</BusinessNameLine1>
        </NameOfOtherOrganization>
        <TransactionType>R</TransactionType>
        <AmountInvolved>7778083</AmountInvolved>
        <MethodOfAmtDetermination>MAINTAINED RECORDS AT FMV</MethodOfAmtDetermination>
      </TransactionsRelatedOrgsTable>
      <TransactionsRelatedOrgsTable>
        <NameOfOtherOrganization>
          <BusinessNameLine1>COMED</BusinessNameLine1>
        </NameOfOtherOrganization>
        <TransactionType>R</TransactionType>
        <AmountInvolved>52807397</AmountInvolved>
        <MethodOfAmtDetermination>MAINTAINED RECORDS AT FMV</MethodOfAmtDetermination>
      </TransactionsRelatedOrgsTable>
      <TransactionsRelatedOrgsTable>
        <NameOfOtherOrganization>
          <BusinessNameLine1>EXELON CORPORATION EMPLOYEES' BENEFIT TRUST</BusinessNameLine1>
        </NameOfOtherOrganization>
        <TransactionType>O</TransactionType>
        <AmountInvolved>58754131</AmountInvolved>
        <MethodOfAmtDetermination>MAINTAINED RECORDS AT FMV</MethodOfAmtDetermination>
      </TransactionsRelatedOrgsTable>
      <Form990ScheduleRPartVII>
        <ReturnReference>PART V, LINE 2(1)(D), TRANSACTION TYPE R</ReturnReference>
        <Explanation>TOTAL COST OF MEDICAL COVERAGE IS ACTUARIALLY DETERMINED. BOTH EMPLOYEES AND EXELON CONTRIBUTE TO THE COST OF MEDICAL COVERAGE. THE COST OF MEDICAL COVERAGE DEPENDS ON COVERAGE CATEGORY AND MEDICAL PLAN OPTION CHOSEN.</Explanation>
      </Form990ScheduleRPartVII>
    </IRS990ScheduleR>
  </ReturnData>
</Return>