Document:

FIRST AMENDMENT TO
                          REVOLVING CREDIT AGREEMENT
                          DATED AS OF JUNE 20, 2003

     This Amendment to the $210,000,000 Revolving Credit Agreement dated as of
June 20, 2003 ("Amendment") is entered into as of February 20, 2004.

                                   RECITALS

          This Amendment is entered into in reference to the following facts:

          (a) The Revolving Credit Agreement is dated as of June 20, 2003 (as
the same may be amended, supplemented or otherwise modified from time to time,
the "Revolving Credit Agreement") among Arch Chemicals, Inc., the Lenders
party thereto, JPMorgan Chase Bank, as Administrative Agent, J.P. Morgan
Securities Inc., as Joint Lead Arranger and Joint Book Manager, Banc of
America Securities, L.L.C., as Joint Lead Arranger and Joint Book Manager,
Bank of America, National Association, as Documentation Agent, and Fleet
National Bank as Syndication Agent. Capitalized terms used in this Amendment
without definition shall have the respective meanings assigned to them in the
Revolving Credit Agreement.

          (b) The Borrower, the Agents and Required Lenders desire to amend
the Revolving Credit Agreement in order to make certain amendments to the
terms and conditions as more particularly described herein.

          NOW THEREFORE, in consideration of the mutual covenants contained
herein, the parties hereto hereby agree as follows:

                           ARTICLE ONE - AMENDMENT

          1.1 AMENDMENT OF DEFINITION OF "PERMITTED ACQUISITION". The
definition of "Permitted Acquisition" shall be amended by the deletion of the
existing subsection (b) in its entirety and the substitution therefor of the
following:

          "(b) the Borrower shall be in compliance, on a pro forma basis after
giving effect to such acquisition, with the covenants contained in Section
6.12, in each case recomputed as at the last day of the most recently ended
Reference Period of the Borrower for which the relevant information is
available as if such acquisition had occurred on the first day of each
relevant period for testing such compliance, and for the purposes of any
acquisition made in the first fiscal quarter 2004, the required Consolidated
Leverage Ratio in respect of the relevant Reference Period for testing shall
be deemed to be 4.25:1.00,"

          1.2 AMENDMENT OF SECTION 6.12. Provided that the Borrower or one its
Subsidiaries shall have substantially consummated the acquisition, the details
of which were disclosed to the Administrative Agent and the Lenders on
February 13, 2004, Section 6.12(a) shall be amended by the deletion at the end
thereof of "3.5:1.0." and its substitution with the following: "the
correlative ratio indicated below:

<PAGE>

    ------------------------------------- -----------------------------------
      FOR QUARTER PERIOD ENDING             CONSOLIDATED LEVERAGE RATIO
    ------------------------------------- -----------------------------------
      March 31, 2004                                     4.25
    ------------------------------------- -----------------------------------
      June 30, 2004                                      4.00
    ------------------------------------- -----------------------------------
      September 30, 2004 and thereafter                  3.50
    ------------------------------------- -----------------------------------

                 ARTICLE TWO - REPRESENTATIONS AND WARRANTIES

          2.1 BORROWER REPRESENTATIONS AND WARRANTIES. In order to induce the
Agents and the Lenders to enter into this Amendment, the Borrower represents
and warrants as follows:

               (a) The Borrower has the power and authority and has taken all
action necessary to execute, deliver and perform this Amendment and all other
agreements and instruments executed or delivered or to be executed or
delivered in connection herewith and therewith and this Amendment and such
other agreements and instruments constitute the valid, binding and enforceable
obligations of the Borrower.

               (b) The Borrower's representations and warranties contained in
the Revolving Credit Agreement are true and correct in all respects, on and as
of the date hereof and upon giving effect to this Amendment, as though made on
and as of the date hereof and no Default or Event of Default has occurred and
is continuing as of the date hereof.

          2.2 ACKNOWLEDGMENT OF BORROWER. The Borrower expressly acknowledges
and agrees that as of the date hereof, it has no offsets, claims or defenses
whatsoever against any of the Indebtedness or obligations owing under the
Revolving Credit Agreement.

                     ARTICLE THREE - CONDITIONS PRECEDENT

          3.1 CONDITIONS TO EFFECTIVENESS OF THIS AMENDMENT. The effectiveness
of this Amendment is subject to the satisfaction of the following conditions
on or before the date hereof:

               (a) Receipt by the Administrative Agent of copies of this
Amendment duly executed by each of the Borrower and the Required Lenders.

               (b) The Borrower shall have paid, to the extent invoiced, all
fees, costs and expenses owing to the Administrative Agent and the
Administrative Agent's counsel through the date hereof, including without
limitation, in respect of the preparation, execution and delivery of this
Amendment.

                                     -2-

<PAGE>

               (c) The Borrower shall have paid to each Lender executing this
Amendment an amendment fee equal to 0.075% of the total amount of the
Commitment of such Lender under the Revolving Credit Agreement.

                      ARTICLE FOUR - GENERAL PROVISIONS

          4.1 FULL FORCE AND EFFECT. Except as expressly amended hereby, the
Revolving Credit Agreement and all other documents, agreements and instruments
relating thereto are and shall remain unmodified and in full force and effect.
Upon the effectiveness of this Amendment, on and after the date hereof, each
reference in the Revolving Credit Agreement to "this Agreement," "hereunder,"
"hereof," "herein," or words of like import shall mean and be a reference to
the Revolving Credit Agreement as amended hereby, and this Amendment and the
Revolving Credit Agreement shall be read together and construed as a single
instrument.

          4.2 COUNTERPARTS. This Amendment may be executed in any number of
counterparts, each of which when so executed and delivered shall be deemed to
be an original and that all of which taken together shall constitute one and
the same instrument, respectively. Delivery of an executed counterpart of this
Amendment by facsimile shall be equally effective as delivery of a manually
executed counterpart of this Amendment. Any party delivering an executed
counterpart by facsimile shall also deliver a manually executed counterpart of
this Amendment, but failure to do so shall not effect the validity,
enforceability, of binding effect of this Amendment.

          4.3 FINAL AGREEMENT. This Amendment is intended by the Borrower, the
Agents and the Lenders to be the final, complete, and exclusive expression of
the agreement between them with respect to the subject matter hereof. This
Amendment supersedes any and all prior oral or written agreements relating to
the subject matter hereof. This Amendment shall be binding upon the parties
hereto and their respective successors and assigns and shall inure to the
benefit of the parties hereto and the successors and assigns of the Lenders
and the Agents. The execution, delivery and effectiveness of this Amendment
shall not, except as expressly provided herein, operate as a waiver of any
right, power or remedy of the Lenders or the Agents under the Revolving Credit
Agreement, nor constitute a waiver of any provision of the Revolving Credit
Agreement.

          4.4 GOVERNING LAW. THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF
THE PARTIES HEREUNDER SHALL BE GOVERNED BY, AND SHALL BE CONSTRUED AND
ENFORCED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

                                     -3-

<PAGE>

          IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed as of the day and year first above written.

                                   JPMORGAN CHASE BANK

                                   By: /s/ Stacey Haimes
                                       -----------------------------------
                                   Name:  Stacey Haimes
                                   Title: Vice President

                                   BANK OF AMERICA, N.A.

                                   By: /s/ Wendy J. Gorman
                                       -----------------------------------
                                   Name:  Wendy J. Gorman
                                   Title: Managing Director

                                   FLEET NATIONAL BANK,

                                   By: /s/ Marwan Isbaih
                                       -----------------------------------
                                   Name:  Marwan Isbaih
                                   Title: Director

                                   PNC BANK, NATIONAL ASSOCIATION

                                   By: /s/ Donald V. Davis
                                       -----------------------------------
                                   Name:  Donald V. Davis
                                   Title: Managing Director

                                   SUNTRUST BANK

                                   By: /s/ Frank A. Coe
                                       -----------------------------------
                                   Name:  Frank A. Coe
                                   Title: Vice President

                                      4

<PAGE>

                                   KEYBANK NATIONAL ASSOCIATION

                                   By: /s/ Marianne T. Meil
                                       -----------------------------------
                                   Name:  Marianne T. Meil
                                   Title: Vice President

                                   CITIZENS BANK OF MASSACHUSETTS

                                   By: /s/ Cindy Chen
                                       -----------------------------------
                                   Name:  Cindy Chen
                                   Title: Vice President

                                   ING LUXEMBOURG

                                   By: /s/ Yves Verhulst
                                       -----------------------------------
                                   Name:  Yves Verhulst
                                   Title: Directeur

                                   By: /s/ Vincent Vermeire
                                       -----------------------------------
                                   Name:  Vincent Vermeire
                                   Title: Head of Corporate & Inst. Banking

                                   THE BANK OF NEW YORK

                                   By: /s/ Joanna S. Bellocq
                                       -----------------------------------
                                   Name:  Joanna S. Bellocq
                                   Title: Vice President

                                   THE NORTHERN TRUST COMPANY

                                   By: /s/ Kathleen D. Schurr
                                       -----------------------------------
                                   Name:  Kathleen D. Schurr
                                   Title: Vice President

                                      5

<PAGE>

Agreed and accepted:

ARCH CHEMICALS, INC.

By: /s/ W. Paul Bush
    ------------------------------
Name:  W. Paul Bush
Title: V.P. & Treasurer

                                      6ARCH CHEMICALS, INC.

                  FIRST AMENDMENT TO NOTE PURCHASE AGREEMENT

                        Dated as of February 27, 2004

     Re:  Note Purchase Agreement dated as of March 20, 2002
                               and
          $149,000,000 Senior Notes, Series A, due March 20, 2007
          $62,000,000 Senior Notes, Series B, due March 20, 2009

To each of the Noteholders named
in Schedule I attached hereto

Ladies and Gentlemen:

     Reference is made to the Note Purchase Agreement dated as of March 20,
2002 (the "Note Purchase Agreement") among Arch Chemicals, Inc., a Virginia
corporation (the "Company"), and the institutional investors named in Schedule
A attached thereto (the "Noteholders"), under and pursuant to which
$149,000,000 in aggregate principal amount of the Senior Notes, Series A, due
March 20, 2007 (the "Series A Notes") and $62,000,000 in aggregate principal
amount of the Senior Notes, Series B, due March 20, 2009 (the "Series B
Notes," and together with the Series A Notes, the "Notes") were originally
issued and sold by the Company to the Noteholders. Terms used but not
otherwise defined herein shall have the meanings set forth in the Note
Purchase Agreement.

     The Company hereby agrees with you in this First Amendment to Note
Purchase Agreement (the "First Amendment") as follows; provided that in the
case of the amendments to the Note Purchase Agreement set forth in Section 1.1
and 1.5 of this First Amendment and the definitions of "Applicable Quarter",
"Series A Applicable Rate" and "Series B Applicable Rate" set forth in Section
1.4 of this First Amendment, such amendments shall not become effective unless
the Company shall have substantially completed the acquisition of the entity
disclosed and discussed in the presentation and telephone conference conducted
by the Company on February 13, 2004 with the Noteholders:

SECTION 1.      AMENDMENTS TO NOTE PURCHASE AGREEMENT.

     Section 1.1. Amendment to Section 10.1 (Limitation on Debt). Section
10.1(a) and Section 10.1(b) of the Note Purchase Agreement shall be and are
hereby amended in their entirety to read as follows:

<PAGE>

               "(a) the Consolidated Leverage Ratio to exceed (i) 3.50 to 1.00
          as of the last day of each fiscal quarter on or prior to December
          31, 2003, (ii) 4.25 to 1.00 as of the last day of the fiscal quarter
          ending March 31, 2004, (iii) 4.00 to 1.00 as of the last day of the
          fiscal quarter ending June 30, 2004, and (iv) 3.50 to 1.00 as of the
          last day of each fiscal quarter thereafter;

               (b) Consolidated Debt to at any time exceed (i) 55% of Total
          Capitalization on or prior to December 31, 2003, (ii) 65% of Total
          Capitalization, during the period beginning on January 1, 2004 to
          and including June 30, 2004, (iii) 60% of Total Capitalization,
          during the period beginning on July 1, 2004 to and including
          September 30, 2004, and (iv) 55% of Total Capitalization, during the
          period beginning on October 1, 2004 and at all times thereafter;
          and".

     Section 1.2. Amendment to Section 10.4 (Limitation on Liens). Section
10.4(i) of the Note Agreement shall be and is hereby amended in its entirety
as follows:

               "(i) Liens granted by the Company and its Subsidiaries to
          secure obligations incurred in connection with a Securitization
          Transaction; provided that (i) such Liens shall extend solely to the
          Receivables which are included in such Securitization Transaction
          and (ii) the obligations secured by such Liens do not constitute
          Debt of the Company or any Subsidiary;".

     Section 1.3. Amendment to Schedule B (Definition of "Debt"). The
definition of Debt in Schedule B to the Note Purchase Agreement shall be and
is hereby amended by deleting the first four words of the last sentence of
such definition and clause (i) of such last sentence and substituting in lieu
thereof the following: "Notwithstanding anything herein to the contrary, Debt
of any Person shall not include (i) obligations arising under Securitization
Transactions which are not required under GAAP to appear as liabilities on the
consolidated balance sheet of the Company,".

     Section 1.4. Amendment to Schedule B (Amended Definitions). The
definitions of "Applicable Quarter," "Securitization Transaction," "Series A
Applicable Rate" and "Series B Applicable Rate" in Schedule B to the Note
Purchase Agreement shall be and are hereby amended in their entirety to read
as follows:

               "`Applicable Quarter' means each of the fiscal quarters of the
          Company ending on March 31, 2004, June 30, 2004 and September 30,
          2004."

                                     -2-

<PAGE>

               "`Securitization Transaction' means the sale, assignment or
          transfer of Receivables or interests therein by the Company or any
          Subsidiary (a) to an SPE that funds the acquisition of such
          Receivables or interests in whole or in part through the sale,
          assignment, transfer, pledge, grant of a security interest in or
          other disposition of such Receivables or interests (or
          participations, beneficial interests or other debt or equity
          securities that are to receive payments from, or represent interests
          in, such Receivables or interests or the cash flows derived from
          such Receivables or interests) to one or more investors, lenders or
          other purchasers, including, without limitation, borrowings by such
          SPE secured in whole or in part by such Receivables or interests, or
          (b) directly to one or more investors or other purchasers."

               "`Series A Applicable Rate' means the rate per annum equal to
          7.94%; provided that the Series A Applicable Rate shall be 8.19% in
          the case of a Tier One Interest Adjustment, and shall be 8.44% in
          the case of a Tier Two Interest Adjustment. The interest adjustment
          shall be determined in each case for the Applicable Quarter
          immediately preceding the Determination Date for such quarter. Any
          increase or decrease in the Series A Applicable Rate shall be in
          effect from and including the first day of the fiscal quarter
          immediately following the Applicable Quarter for which a
          determination is made to and including the last day of such fiscal
          quarter. Except for adjustments in the interest rate for the Series
          A Notes in respect of any Applicable Quarter, the interest rate
          borne by the Series A Notes shall be 7.94% per annum. If any
          determination hereunder would result in both a Tier One Interest
          Adjustment and a Tier Two Interest Adjustment, the Tier Two Interest
          Adjustment shall be controlling."

               "`Series B Applicable Rate' means the rate per annum equal to
          8.24%; provided that the Series B Applicable Rate shall be 8.49% in
          the case of a Tier One Interest Adjustment, and shall be 8.74% in
          the case of a Tier Two Interest Adjustment. The interest adjustment
          shall be determined in each case for the Applicable Quarter
          immediately preceding the Determination Date for such quarter. Any
          increase or decrease in the Series B Applicable Rate shall be in
          effect from and including the first day of the fiscal quarter
          immediately following the Applicable Quarter for which a
          determination is made to and including the last day of such fiscal
          quarter. Except for adjustments in the interest rate for the Series
          B Notes in respect of any Applicable Quarter, the interest rate
          borne by the Series B Notes shall be 8.24% per annum. If any

                                     -3-

<PAGE>

          determination hereunder would result in both a Tier One Interest
          Adjustment and a Tier Two Interest Adjustment, the Tier Two Interest
          Adjustment shall be controlling."

     Section 1.5 Amendment to Schedule B (Definitions - Addition of New
Definitions). Schedule B of the Note Agreement is hereby amended by the
addition thereto of the following new definitions which shall read as follows:

               "`Tier One Interest Adjustment' shall mean either (x) the
          Consolidated Leverage Ratio was greater than 3.5 but was equal to or
          less than 4.0 as of the last day of the Applicable Quarters ending
          March 31, 2004 or June 30, 2004, and/or (y) Consolidated Debt was
          greater than 55% but was equal to or less than 60% of Total
          Capitalization at any time during the Applicable Quarters ending
          March 31, 2004, June 30, 2004 or September 30, 2004."

               "`Tier Two Interest Adjustment' shall mean either (x) the
          Consolidated Leverage Ratio was greater than 4.0 but was equal to or
          less than 4.25 as of the last day of the Applicable Quarter ending
          March 31, 2004 and/or (y) Consolidated Debt was greater than 60% but
          was equal to or less than 65% of Total Capitalization at any time
          during the Applicable Quarters ending March 31, 2004 or June 30,
          2004."

SECTION 2.      REPRESENTATIONS AND WARRANTIES

     The Company represents and warrants that as of the date hereof:

     Section 2.1. First Amendment is Legal and Authorized. (a) The execution
and delivery of the First Amendment by the Company and compliance by the
Company with all of the provisions of the Note Purchase Agreement, as amended
by this First Amendment --

               (i) are within the corporate powers of the Company; and

               (ii) will not violate any provisions of any law or any order of
          any court or governmental authority or agency and will not conflict
          with or result in any breach of any of the terms, conditions or
          provisions of, or constitute a default under the Articles of
          Incorporation or By-laws of the Company, or any indenture or other
          agreement or instrument to which the Company is a party or by which
          the Company may be bound or result in the imposition of any Liens or
          encumbrances on any property of the Company.

     (b) The execution and delivery of the First Amendment has been duly
authorized by all necessary corporate action on the part of the Company (no
action by the stockholders of the Company being required by law, by the
Articles of Incorporation or By-laws of the Company or

                                     -4-

<PAGE>

otherwise, other than those actions which have been obtained or effected); and
the First Amendment has been duly executed and delivered by the Company, and
the Note Purchase Agreement, as amended by the First Amendment, constitutes
the legal, valid and binding obligation, contract and agreement of the Company
enforceable in accordance with its terms, subject to bankruptcy, insolvency,
fraudulent conveyance and similar laws affecting creditors' rights generally,
and general principles of equity (regardless of whether the application of
such principles is considered in a proceeding in equity or at law).

     (c) No consent, approval or authorization of, or registration, filing or
declaration with, any Governmental Authority is required in connection with
the execution, delivery or performance by the Company of this First Amendment.

     (d) No Default or Event of Default exists under the Note Purchase
Agreement.

SECTION 3.      CONDITIONS PRECEDENT TO EFFECTIVENESS OF THE FIRST AMENDMENT.

     This First Amendment shall become effective as of the date (the
"Effective Date") upon which the following conditions have been satisfied:

          (a) The Required Holders shall have delivered an executed
     counterpart of this First Amendment;

          (b) The Company shall have delivered to the Noteholders a
     certificate of an authorized officer, dated as of the Effective Date, to
     the effect that the representations and warranties set forth in Section 2
     of this First Amendment are true and correct;

          (c) Sarah A. O'Connor, General Counsel for the Company shall have
     delivered an opinion in form and substance reasonably satisfactory to the
     Noteholders and their special counsel to the effect that this First
     Amendment constitutes the legal, valid and binding obligation of the
     Company;

          (d) The Company shall have paid a fee to each Noteholder in an
     amount equal to .075% of the outstanding principal amount of the Notes
     held by such Noteholder; and

          (e) The Company shall have paid the fees, costs, expenses and
     disbursements of Chapman and Cutler LLP, special counsel to the
     Noteholders, incurred in connection with the consummation of the
     transactions contemplated by this First Amendment.

SECTION 4.      MISCELLANEOUS

     Section 4.1. Ratification of Note Purchase Agreement. Except as herein
expressly amended, the Note Purchase Agreement is in all respects ratified and
confirmed. If and to the extent that any of the terms or provisions of the
Note Purchase Agreement is in conflict or

                                     -5-

<PAGE>

inconsistent with any of the terms or provisions of this First Amendment, this
First Amendment shall govern.

     Section 4.2. No Legend Required. References in the Note Purchase
Agreement or in any Note, certificate, instrument or other document related to
or delivered in connection with the transactions contemplated by the Note
Purchase Agreement shall be deemed to be references to the Note Purchase
Agreement as amended hereby and as further amended from time to time.

     Section 4.3. Successors and Assigns. This First Amendment shall be
binding upon the Company and its respective successors and assigns and shall
inure to the benefit of you and to the benefit of your successors and assigns,
including each successive holder or holders of any Notes.

     Section 4.4. Counterparts. This First Amendment may be executed in any
number of counterparts, each executed counterpart constituting an original but
all together only one agreement. Signatures to this First Amendment may be
given by facsimile or other electronic transmission, and such signatures shall
be effective as originals.

     Section 4.5. Governing Law. The Note Purchase Agreement as amended by
this First Amendment and the Notes shall be construed and enforced in
accordance with, and the rights of the parties shall be governed by, the law
of the State of New York excluding choice-of-law principles of the law of such
State that would require the application of the laws of a jurisdiction other
than such State.

                            Signature Pages Follow

                                     -6-

<PAGE>

     IN WITNESS WHEREOF, the Company has executed this First Amendment to Note
Purchase Agreement as of the day and year first above written.

                                   ARCH CHEMICALS, INC.

                                   By: /s/ Louis Massimo
                                       ---------------------------------
                                       Its Executive Vice President and Chief
                                       Financial Officer

<PAGE>

     This First Amendment to Note Purchase Agreement is accepted and agreed to
as of the day and year first above written.

                                   RELIASTAR LIFE INSURANCE COMPANY
                                   SECURITY LIFE OF DENVER INSURANCE COMPANY
                                   ING USA ANNUITY AND LIFE INSURANCE COMPANY

                                   By:ING Investment Management LLC,

                                         as Agent

                                   By: /s/ Christopher P. Lyons
                                       -----------------------------------
                                       Name: Christopher P. Lyons
                                       Title:   Senior Vice President

<PAGE>

     This First Amendment to Note Purchase Agreement is accepted and agreed to
as of the day and year first above written.

                                   METROPOLITAN LIFE INSURANCE COMPANY

                                   By: /s/ Judith A. Gulotta
                                       ------------------------------------
                                       Name: Judith A. Gulotta
                                       Title:  Director

<PAGE>

     This First Amendment to Note Purchase Agreement is accepted and agreed to
as of the day and year first above written.

                                   NEW YORK LIFE INSURANCE COMPANY

                                   By: /s/ Kathleen A. Haberkern
                                       ------------------------------------
                                       Name: Kathleen A. Haberkern
                                       Title:  Investment Vice President

                                   NEW YORK LIFE INSURANCE AND ANNUITY
                                     CORPORATION

                                   By  New York Life Investment Management
                                       LLC, Its Investment Manager

                                   By: /s/ Kathleen A. Haberkern
                                       ------------------------------------
                                       Name: Kathleen A. Haberkern
                                       Title:  Director

                                   NEW YORK LIFE INSURANCE AND ANNUITY
                                     CORPORATION INSTITUTIONALLY OWNED LIFE
                                     INSURANCE SEPARATE ACCOUNT

                                   By  New York Life Investment Management
                                       LLC, Its Investment Manager

                                   By: /s/ Kathleen A. Haberkern
                                       ------------------------------------
                                       Name: Kathleen A. Haberkern
                                       Title:  Director

<PAGE>

     This First Amendment to Note Purchase Agreement is accepted and agreed to
as of the day and year first above written.

                                   NATIONWIDE LIFE INSURANCE COMPANY
                                   NATIONWIDE LIFE AND ANNUITY INSURANCE
                                     COMPANY

                                   By: /s/ Mark W. Poeppelman
                                       ------------------------------------
                                        Name: Mark W. Poeppelman
                                        Title:  Authorized Signatory

<PAGE>

     This First Amendment to Note Purchase Agreement is accepted and agreed to
as of the day and year first above written.

                                   THE CANADA LIFE ASSURANCE COMPANY

                                   By: /s/ Tad Anderson
                                       ------------------------------------
                                       Name:  Tad Anderson
                                       Title: Manager, Investments, U.S.
                                              Operations

                                   By: /s/ Wayne Hoffman
                                       ------------------------------------
                                       Name:  Wayne Hoffman
                                       Title: Senior Vice President,
                                              Investments,
                                              U.S. Operations

                                   CANADA LIFE  INSURANCE COMPANY OF AMERICA

                                   By: /s/ Tad Anderson
                                       ------------------------------------
                                        Name: Tad Anderson
                                        Title:  Manager, Investments, CLICA

                                   By: /s/ Wayne Hoffman
                                       ------------------------------------
                                        Name: Wayne Hoffman
                                        Title:  Senior Vice President,
                                                Investments,
                                                CLICA

<PAGE>

     This First Amendment to Note Purchase Agreement is accepted and agreed to
as of the day and year first above written.

                                   ERIE INDEMNITY COMPANY, as attorney in fact,
                                     for Erie Insurance Exchange
                                   ERIE FAMILY LIFE INSURANCE COMPANY
                                   ERIE INDEMNITY COMPANY
                                   ERIE INSURANCE GROUP RETIREMENT TRUST
                                     COMPANY

                                   By: /s/ Douglas F. Ziegler
                                       ------------------------------------
                                       Name: Douglas F. Ziegler
                                       Title:  Senior Vice President,
                                               Treasurer & Chief Investment
                                               Officer

<PAGE>

     This First Amendment to Note Purchase Agreement is accepted and agreed to
as of the day and year first above written.

                                   THE OHIO NATIONAL LIFE INSURANCE COMPANY

                                   By: /s/ Jed R. Martin
                                       ------------------------------------
                                       Name: Jed R. Martin
                                       Title:  Investment Vice President
                                               Private Placements

<PAGE>

     This First Amendment to Note Purchase Agreement is accepted and agreed to
as of the day and year first above written.

                                   ALLSTATE LIFE INSURANCE COMPANY

                                   By: /s/ Douglas H. Allen
                                       ------------------------------------
                                       Douglas H. Allen

                                   By: /s/ Jerry D. Zinkula
                                       ------------------------------------
                                       Jerry D. Zinkula
                                       Authorized Signatories

                                   ALLSTATE LIFE INSURANCE COMPANY OF NEW
                                     YORK

                                   By: /s/ Douglas H. Allen
                                       ------------------------------------
                                       Douglas H. Allen

                                   By: /s/ Jerry D. Zinkula
                                       ------------------------------------
                                       Jerry D. Zinkula
                                       Authorized Signatories

<PAGE>

     This First Amendment to Note Purchase Agreement is accepted and agreed to
as of the day and year first above written.

                                   BENEFICIAL LIFE INSURANCE COMPANY

                                   By: /s/ Robert R. Dalley
                                       ------------------------------------
                                       Name: Robert R. Dalley
                                       Title:  Senior Vice President and CFO

<PAGE>

ING USA Annuity and Life Insurance Company
c/o ING Investment Management LLC
Minneapolis, Minnesota 55401-2121

Security Life of Denver Insurance Company
c/o ING Investment Management LLC
Minneapolis, Minnesota 55401-2121

ReliaStar Life Insurance Company
c/o ING Investment Management LLC
Minneapolis, Minnesota 55401-2121

Metropolitan Life Insurance Company
New York, New York 10010-3690

New York Life Insurance Company
c/o New York Life Investment Management LLC

New York, New York 10010

New York Life Insurance and Annuity Corporation
c/o New York Life Investment Management LLC

New York, New York 10010

New York Life Insurance and Annuity Corporation
Institutionally Owned Life Insurance Separate Account
c/o New York Life Investment Management LLC

New York, New York 10010

Nationwide Life Insurance Company
Columbus, Ohio 43215-2220

Nationwide Life and Annuity Insurance Company
Columbus, Ohio 43215-2220

The Canada Life Assurance Company
Winnipeg, Manitoba

Canada R3C 3A5

Canada Life Insurance Company of America
c/o Great-West Life & Annuity Insurance Company

Greenwood, Colorado 80111

                                  SCHEDULE I

               (to First Amendment to Note Purchase Agreement)

<PAGE>

Erie Indemnity Company
Erie, Pennsylvania 16530

Erie Family Life Insurance Company
Erie, Pennsylvania 16530

Erie Indemnity Company, as attorney in fact,
for Erie Insurance Exchange
Erie, Pennsylvania 16530

Erie Insurance Group Retirement Trust Company
Erie, Pennsylvania 16530

The Ohio National Life Insurance Company
Cincinnati, Ohio 45242

Allstate Life Insurance Company
Northbrook, Illinois 60062-7127

Allstate Life Insurance Company of New York
Northbrook, Illinois 60062-7127

Beneficial Life Insurance Company
Salt Lake City, Utah 84136

                                     -2-

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