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        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE TRUSTS ESTABLISHED UNDER THE PLAN TO HOLD THE PLAN'S ASSETS ARE INTENDED TO QUALIFY PURSUANT TO SECTION 501(C)(9) OF THE IRC, AND, ACCORDINGLY, THE TRUSTS' NET INVESTMENT INCOME IS EXEMPT FROM INCOME TAXES. THE ATK VEBA MASTER TRUST HAS OBTAINED AN EXEMPTION LETTER FROM THE INTERNAL REVENUE SERVICE DATED MARCH 19, 1992, AND THE THIOKOL CORPORATION RETIREE HEALTH BENEFIT TRUST HAS OBTAINED AN EXEMPTION LETTER FROM THE INTERNAL REVENUE SERVICE DATED JANUARY 18, 1994, STATING THAT THE TRUSTS ARE TAX EXEMPT. THE PLAN SPONSOR BELIEVES THAT THE TRUSTS, AS AMENDED, CONTINUE TO QUALIFY AND TO OPERATE IN ACCORDANCE WITH APPLICABLE PROVISIONS OF THE IRC. THEREFORE, NO PROVISIONS FOR INCOME TAXES HAS BEEN INCLUDED IN THE PLAN'S FINANCIAL STATEMENTS. GAAP REQUIRES PLAN MANAGEMENT TO EVALUATE TAX POSITIONS TAKEN BY THE PLAN AND RECOGNIZE A TAX LIABILITY IF THE PLAN HAS TAKEN AN UNCERTAIN TAX POSITION THAT MORE LIKELY THAN NOT WOULD NOT BE SUSTAINED UPON EXAMINATION BY THE FEDERAL AND STATE TAX AUTHORITIES. THE PLAN IS SUBJECT TO ROUTINE AUDITS BY TAXING JURISDICTIONS HOWEVER, THERE ARE CURRENTLY NO AUDITS FOR ANY TAX PERIODS IN PROGRESS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 1</FormAndLineReferenceDesc>
        <ExplanationTxt>NORTHROP GRUMMAN INNOVATION SYSTEMS, INC. HAS DESIGNATED THEIR PENSION INVESTMENT COMMITTEE (PIC) AS THE GOVERNING BODY WITH RESPECT TO OVERSIGHT OF PLAN ASSETS IN THE TRUST AND THE NORTHROP GRUMMAN INNOVATION SYSTEMS, INC. PENSION AND RETIREMENT COMMITTEE (PRC) WITH RESPECT TO ADMINISTRATION OF MEDICAL AND LIFE INSURANCE BENEFITS FUNDED BY THE TRUST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>US BANK NATIONAL ASSOC. HAS BEEN FURTHER APPOINTED AS AN INDEPENDENT CORPORATE TRUSTEE WITH RESPECT TO THE TRUST. THE TRUSTEE HOLDS, ADMINISTERS, INVESTS AND REINVESTS, AND DISBURSES TRUST FUNDS IN ACCORDANCE WITH THE POWERS AND RESTRICTIONS SET FORTH IN THE TRUST AGREEMENT.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS OF THE PIC AND PRC ARE DESIGNATED IN THEIR RESPECTIVE GOVERNING CHARTERS AND IN THE TERMS OF THE UNDERLYING COMPANY BENEFIT PLAN DOCUMENTS. THE PIC AND PRC, IN TURN, HAVE THE AUTHORITY TO CERTIFY TO THE TRUSTEE THE NAME OF THE PERSON(S) (IN ADDITION TO THE CHIEF FINANCIAL OFFICER, TREASURER, AND ASSISTANT TREASURER) HAVING AUTHORITY ON BEHALF OF THE COMPANY TO DIRECT THE TRUSTEE WITH RESPECT TO DISBURSEMENT OF TRUST FUNDS FOR PLAN PURPOSES, AND THE NAME OF THE PERSON(S) HAVING AUTHORITY ON BEHALF OF THE COMPANY TO COMMUNICATE WITH THE TRUSTEE WITH RESPECT TO ANY OTHER MATTER RELATING TO THE TRUST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FINAL FORM 990 AND ITS VARIOUS SCHEDULES WERE PREPARED BY A NATIONAL CPA FIRM, AND REVIEWED BY THE KEY OFFICERS AND TRUSTEE OF THE TRUST. IDENTIFIED CHANGES WERE INCORPORATED PRIOR TO FILING FORM 990 WITH THE IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12</FormAndLineReferenceDesc>
        <ExplanationTxt>WHILE THE VEBA ITSELF DOES NOT HAVE A CONFLICT OF INTEREST POLICY, IT IS GOVERNED AND ADMINISTERED BY INDIVIDUALS SUBJECT TO THE POLICIES OF NORTHROP GRUMMAN INNOVATION SYSTEMS, INC., INCLUDING THE CONFLICT OF INTEREST AND REPORTING PROVISIONS SET FORTH IN THE NORTHROP GRUMMAN INNOVATION SYSTEMS, INC. CODE OF ETHICS AND BUSINESS CONDUCT. THE TRUSTEE HAS ADOPTED A CODE OF BUSINESS CONDUCT AND ETHICS THAT INCLUDES A SECTION ON CONFLICT OF INTEREST. THE TRUSTEE REQUIRES KEY STAFF MEMBERS TO ANNUALLY (A) DISCLOSE THEIR OUTSIDE CONNECTIONS AND OWNERSHIP INTEREST IN A CONFLICT OF INTEREST POLICY DISCLOSURE AND RETURN IT TO THE OFFICE OF THE GENERAL COUNSEL AND (B) AFFIRM THAT THEY HAVE REVIEWED AND ARE IN COMPLIANCE WITH A NUMBER OF THE TRUSTEE'S POLICIES INCLUDING THE CODE OF BUSINESS CONDUCT AND ETHICS AND ITS GUIDELINES RELATING TO STANDARDS OF CONDUCT, WHICH ALSO INCLUDES A SECTION ON CONFLICTS OF INTEREST. POTENTIAL CONFLICTS OF INTEREST ARE DISCLOSED IMMEDIATELY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>FINANCIAL STATUS IS PROVIDED YEARLY VIA SUMMARY ANNUAL REPORTS (SAR'S). THE SAR'S ARE CONSOLIDATED INTO ONE DOCUMENT AND ARE SENT TO ALL ACTIVE EE'S, RETIREES, BENEFICIARIES AND TERMINATED EE'S WHO WERE EMPLOYED DURING THE CALENDAR YEAR 2020 OR TERMINATED EE'S ENTITLED TO FUTURE BENEFITS. THE ANNUAL REPORT IS FILED WITH THE EMPLOYEE BENEFITS SECURITY ADMINISTRATION (EBSA). ADDITIONALLY A STATEMENT OF THE ASSETS AND LIABILITIES OF THE PLAN, GOVERNING DOCUMENTS AND CONFLICT OF INTEREST POLICY IS AVAILABLE UPON REQUEST BY WRITING TO NORTHROP GRUMMAN INNOVATION SYSTEMS, INC., EMPLOYEE SOLUTIONS, 1960 E. GRAND AVENUE, SUITE 900, EL SEGUNDO, CA 90245.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VII CONTACT ADDRESSES FOR OFFICERS, DIRECTORS, ETC</FormAndLineReferenceDesc>
        <ExplanationTxt>U.S. BANK - U.S. BANK C/O LISA FOSTER, 60 LIVINGSTON AVENUE, ST. PAUL, MN 55107.</ExplanationTxt>
      </SupplementalInformationDetail>
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          <BusinessNameLine1Txt>NORTHROP GRUMMAN INNOVATION SYSTEMS INC</BusinessNameLine1Txt>
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          <AddressLine1Txt>5995 OPUS PARKWAY SUITE 300</AddressLine1Txt>
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          <StateAbbreviationCd>MN</StateAbbreviationCd>
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        <PrimaryActivitiesTxt>TECHNOLOGY</PrimaryActivitiesTxt>
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