SUPPLEMENTAL INDENTURE

Exhibit 4.1

7.400% NOTES DUE 2014

7.950% NOTES DUE 2018

8.700% NOTES DUE 2038

SUPPLEMENTAL INDENTURE

between

INTERNATIONAL PAPER COMPANY

and

THE BANK OF NEW YORK

Dated as of June 4, 2008

TABLE OF CONTENTS

-i-

SUPPLEMENTAL INDENTURE, dated as of June 4, 2008 (the “ Supplemental Indenture ”), between International Paper Company, a New York corporation (the “ Company ”), and The Bank of New York, as trustee (the “ Trustee ”) under the Indenture, dated as of April 12, 1999, between the Company and the Trustee (the “ Indenture ”).

WHEREAS, the Company executed and delivered the Indenture to the Trustee to provide, among other things, for the future issuance of the Company’s unsecured Securities to be issued from time to time in one or more series as might be determined by the Company under the Indenture, in an unlimited aggregate principal amount which may be authenticated and delivered as provided in the Indenture;

WHEREAS, Section 9.1 of the Indenture provides for various matters with respect to any series of Securities issued under the Indenture to be established in an indenture supplemental to the Indenture;

WHEREAS, Section 9.1(7) of the Indenture provides for the Company and the Trustee to enter into an indenture supplemental to the Indenture to establish the form or terms of Securities of any series as provided by Sections 2.1 and 3.1 of the Indenture;

WHEREAS, the Board of Directors of the Company has duly adopted resolutions authorizing the Company to execute and deliver this Supplemental Indenture;

WHEREAS, pursuant to the terms of the Indenture, the Company desires to provide for the establishment of three new series of its Securities to be known as its 7.400% Notes due 2014 (the “ 2014 Notes ”), its 7.950% Notes due 2018 (the “ 2018 Notes ”) and its 8.700% Notes due 2038 (the “ 2038 Notes ”; and together with the 2014 Notes and the 2018 Notes, the “ Notes ”), the form and substance of such Notes and the terms, provisions and conditions thereof to be set forth as provided in the Indenture and this Supplemental Indenture;

WHEREAS, the Company has requested that the Trustee execute and deliver this Supplemental Indenture and all requirements necessary to make (i) this Supplemental Indenture a valid instrument in accordance with its terms, and (ii) the Notes, when executed by the Company and authenticated and delivered by the Trustee, the valid obligations of the Company, have been performed, and the execution and delivery of this Supplemental Indenture has been duly authorized in all respects;

NOW THEREFORE, in consideration of the purchase and acceptance of the Notes by the Holders thereof, and for the purpose of setting forth, as provided in the Indenture, the form and substance of the Notes and the terms, provisions and conditions thereof, the Company covenants and agrees with the Trustee as follows:

ARTICLE 1

DEFINITIONS

Section 1.01. Definition of Terms . Unless the context otherwise requires:

(a) a term defined in the Indenture has the same meaning when used in this Supplemental Indenture unless the definition of such term is amended and supplemented pursuant to this Supplemental Indenture;

(b) a term defined anywhere in this Supplemental Indenture has the same meaning throughout;

(c) the singular includes the plural and vice versa;

(d) a reference to a Section or Article is to a Section or Article in this Supplemental Indenture;

(e) headings are for convenience of reference only and do not affect interpretation;

(f) the following terms have the meanings given to them in this Section 1.01(f):

“ 2014 Notes ” shall have the meaning set forth in the recitals above.

“ 2018 Notes ” shall have the meaning set forth in the recitals above.

“ 2038 Notes ” shall have the meaning set forth in the recitals above.

“ Business Day ” shall have the meaning set forth in Section 3.01(c).

“ Change of Control ” shall have the meaning set forth in Section 3.03(e).

“ Change of Control Offer ” shall have the meaning set forth in Section 3.03(a).

“ Change of Control Payment ” shall have the meaning set forth in Section 3.03(a).

“ Change of Control Payment Date ” shall have the meaning set forth in Section 3.03(b).

“ Change of Control Triggering Event ” shall have the meaning set forth in Section 3.03(e).

“ Comparable Treasury Issue ” shall have the meaning set forth in Section 3.01(c).

“ Comparable Treasury Price ” shall have the meaning set forth in Section 3.01(c).

“ Exchange Act ” means the Securities Exchange Act of 1934, as amended.

“ Global Note ” shall have the meaning set forth in Section 2.04(a).

“ Independent Investment Banker ” shall have the meaning set forth in Section 3.01(c).

“ Interest Payment Date ” shall have the meaning set forth in Section 2.07(a).

“ Investment Grade ” shall have the meaning set forth in Section 3.03(e).

“ Issue Date ” means June 4, 2008, the date of initial issuance of the Notes.

“ Moody’s ” means Moody’s Investors Service, Inc., a subsidiary of Moody’s Corporation, and its successors.

“ Notes ” shall have the meaning set forth in the recitals above.

“ Optional Redemption Price ” shall have the meaning set forth in Section 3.01(a).

-2-

“ Person ” means any individual, corporation, partnership, limited liability company, business trust, association, joint-stock company, joint venture, trust, incorporated or unincorporated organization or government or any agency or political subdivision thereof.

“ Purchase Agreement ” shall have the meaning set forth in Section 3.02(b).

“ Rating Agency ” shall have the meaning set forth in Section 3.03(e).

“ Reference Treasury Dealer ” shall have the meaning set forth in Section 3.01(c).

“ Reference Treasury Dealer Quotations ” shall have the meaning set forth in Section 3.01(c).

“ Remaining Life ” shall have the meaning set forth in Section 3.01(c).

“ S&P ” means Standard & Poor’s Ratings Services, a division of The McGraw-Hill Companies, Inc., and its successors.

“ Special Mandatory Redemption Date ” shall have the meaning set forth in Section 3.02(b).

“ Special Mandatory Redemption Price ” shall have the meaning set forth in Section 3.02(b).

“ Substitute Rating Agency ” shall have the meaning set forth in Section 2.07(c)(ix).

“ Supplemental Indenture ” shall have the meaning set forth in the recitals above.

“ Treasury Rate ” shall have the meaning set forth in Section 3.01(c).

“ Voting Stock ” shall have the meaning set forth in Section 3.03(e).

ARTICLE 2

TERMS AND CONDITIONS OF THE NOTES

Section 2.01. Designation and Principal Amount .

(a) 7.400% Notes due 2014

There is hereby authorized a series of Securities designated the “ 7.400% Notes due 2014 ” initially offered in the aggregate principal amount of $1,000,000,000, which amount shall be as set forth in a Company Order for the authentication and delivery of such Notes pursuant to Section 3.3 of the Indenture.

(b) 7.950% Notes due 2018

There is hereby authorized a series of Securities designated the “ 7.950% Notes due 2018 ” initially offered in the aggregate principal amount of $1,700,000,000, which amount shall be as set forth in a Company Order for the authentication and delivery of such Notes pursuant to Section 3.3 of the Indenture.

-3-

(c) 8.700% Notes due 2038

There is hereby authorized a series of Securities designated the “ 8.700% Notes due 2038 ” initially offered in the aggregate principal amount of $300,000,000, which amount shall be as set forth in a Company Order for the authentication and delivery of such Notes pursuant to Section 3.3 of the Indenture.

Section 2.02. Maturity . The 2014 Notes will mature on June 15, 2014, the 2018 Notes will mature on June 15, 2018, and the 2038 Notes will mature on June 15, 2038.

Section 2.03. Depositary . The Depository Trust Company shall be the initial Depositary, until a successor shall have been appointed and become such pursuant to the applicable provisions of this Indenture, and thereafter, “Depositary” shall mean or include such successor.

Section 2.04. Form; Denomination .

(a) The 2014 Notes, the 2018 Notes and the 2038 Notes shall each be issued initially in the form of one or more permanent Global Notes in registered form, without coupons, substantially in the form herein below recited (each, a “ Global Note ” and collectively, the “ Global Notes ”), deposited with the Trustee, as custodian for the Depositary, duly executed by the Company and authenticated by the Trustee as herein provided.

The aggregate principal amount of each Global Note may from time to time be increased or decreased by adjustments made on the records of the Trustee, as custodian for the Depositary or its nominee, as provided in Section 2.3 of the Indenture.

(b) The Notes shall be issuable only in registered form, without coupons, in denominations of $2,000 and integral multiples of $1,000 in excess thereof. The Notes shall be numbered, lettered, or otherwise distinguished in such manner or in accordance with such plans as the officers of the Company executing the same may determine with the approval of the Trustee.

Section 2.05. Legend . Each Global Note shall bear the following legend on the face thereof:

UNLESS THIS GLOBAL NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), NEW YORK, NEW YORK, TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY GLOBAL NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

TRANSFERS OF THIS GLOBAL NOTE SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT IN PART, TO DTC, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL NOTE SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE

-4-

WITH THE RESTRICTIONS SET FORTH IN THE INDENTURE REFERRED TO ON THE REVERSE HEREOF.

Section 2.06. Special Transfer Provisions .

(a) A Global Note may be transferred, in whole but not in part, only to the Depositary, to a nominee of the Depositary, or to a successor Depositary selected or approved by the Company or to a nominee of such successor Depositary.

(b) If at any time the Depositary for a series of Notes notifies the Company that it is unwilling or unable to continue as Depositary or if at any time the Depositary for such series shall no longer be registered or in good standing under the Exchange Act or other applicable statute or regulation, and a successor Depositary for such series is not appointed by the Company within 90 days after the Company receives such notice or becomes aware of such condition, as the case may be, the Company will execute, and, subject to Article 3 of the Indenture, the Trustee, upon written notice from the Company, will authenticate and make available for delivery the Notes of such series in definitive registered form without coupons, in authorized denominations, and in an aggregate principal amount equal to the principal amount of the Global Note for such series in exchange for the Global Note for such series. In addition, the Company may (subject to the procedures of the Depositary) at any time determine that the Notes of such series shall no longer be represented by a Global Note. In such event the Company will execute, and subject to Section 3.5 of the Indenture, the Trustee, upon receipt of an Officer’s Certificate evidencing such determination by the Company, will authenticate and deliver the Notes of such series in definitive registered form without coupons, in authorized denominations, and in an aggregate principal amount equal to the principal amount of the Global Note for such series in exchange for the Global Note for such series. Upon the exchange of the Global Note for the Notes of such series in definitive registered form without coupons, in authorized denominations, the Global Note for such series shall be cancelled by the Trustee. Such Notes in definitive registered form issued in exchange for the Global Note for such series shall be registered in such names and in such authorized denominations as the Depositary, pursuant to instructions from its direct or indirect participants or otherwise, shall instruct the Trustee. The Trustee shall deliver such Notes to the Depositary for delivery to the Persons in whose names such Notes are so registered. Notes of either series represented by Global Notes will be exchangeable for Notes in definitive registered form if an Event of Default shall have occurred and be continuing.

Section 2.07. Interest .

(a) The 2014 Notes will bear interest at the rate of 7.400% per annum, the 2018 Notes will bear interest at the rate of 7.950% per annum, and the 2038 Notes will bear interest at the rate of 8.700% per annum, each subject to adjustment as set forth in Section

2.07(c), from the most recent Interest Payment Date to which interest has been paid or duly provided for or, if no interest has been paid, from the Issue Date until the principal thereof becomes due and payable, payable semi-annually in arrears on June 15 and December 15 of each year (each, an “ Interest Payment Date ”), commencing on December 15, 2008, to the Person in whose name such Note or any Predecessor Security is registered, at the close of business on the Regular Record Date for such interest installment, which shall be the close of business on June 1 or December 1 (whether or not a Business Day), as the case may be, immediately preceding such Interest Payment Date, and at the foregoing respective rates on overdue principal.

(b) The amount of interest payable for any period less than a full interest period will be computed on the basis of a 360-day year of twelve 30-day months and the actual days elapsed in a partial month in such period. In the event that any date on which interest is payable on the Notes is not a

-5-

Business Day, then payment of the interest payable on such date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay) with the same force and effect as if made on the date such payment was originally payable.

(c) The interest rate payable on the Notes of a series shall be subject to adjustment from time to time if either Moody’s or S&P (or, in either case, any Substitute Rating Agency thereof) downgrades (or subsequently upgrades) the debt rating assigned to the Notes of that series in the manner described below:

(i) If the rating from Moody’s (or any Substitute Rating Agency thereof) of the Notes of a series is decreased to a rating set forth in the immediately following table, the interest rate payable on the Notes of that series will increase from the interest rate payable on the Notes of such series on the Issue Date by the percentage points set forth opposite that rating:

(ii) If the rating from S&P (or any Substitute Rating Agency thereof) of the Notes of a series is decreased to a rating set forth in the immediately following table, the interest rate payable on the Notes of that series will increase from the interest rate payable on the Notes of that series on the Issue Date by the percentage points set forth opposite that rating:

(iii) If at any time the interest rate on the Notes of a series has been adjusted upward and either Moody’s or S&P (or, in either case, a Substitute Rating Agency thereof), as the case may be, subsequently increases its rating of the Notes of that series to any of the threshold ratings set forth above, the interest rate on the Notes of that series will be decreased such that the interest rate for the Notes of that series equals the interest rate payable on the Notes of that series on the Issue Date plus the percentage points set forth opposite the ratings from the tables above in effect immediately following the rating increase. If Moody’s (or any Substitute Rating Agency thereof) subsequently increases its rating of the Notes of a series to Baa3 (or its equivalent, in the case of a Substitute Rating Agency) or higher and S&P (or any Substitute Rating Agency thereof)

-6-

increases its rating to BBB- (or its equivalent, in the case of a Substitute Rating Agency) or higher, the interest rate on the Notes of that series will be decreased to the interest rate payable on the Notes of that series on the Issue Date. In addition, the interest rates on the Notes of each series will permanently cease to be subject to any adjustment pursuant to this Section 2.07(c) (notwithstanding any subsequent decrease in the ratings by either or both such rating agencies) if the Notes of that series become rated A3 (stable or better) and A- (stable or better) (or the equivalent of either such rating, in the case of a Substitute Rating Agency) or higher by Moody’s and S&P (or, in either case, any Substitute Rating Agency thereof), respectively (or one of these ratings if the Notes of such series are only rated by one such rating agency).

(iv) Each adjustment required by any decrease or increase in a rating set forth above, whether occasioned by the action of Moody’s or S&P (or, in either case, any Substitute Rating Agency thereof), shall be made independent of any and all other adjustments. In no event shall (1) the interest rate on the Notes of a series be reduced to below the interest rate payable on the Notes of such series on the Issue Date or (2) the total increase in the interest rate on the Notes of a series exceed 2.00 percentage points above the interest rate payable on the Notes of such series on the Issue Date.

(v) No adjustments in the interest rate of the Notes of a series shall be made solely as a result of a rating agency ceasing to provide a rating of such series of Notes. If at any time less than two rating agencies provide a rating of the Notes of a series for a reason beyond the Company’s control, the Company will use its commercially reasonable efforts to obtain a rating of such series of Notes from a Substitute Rating Agency, to the extent one exists, and if a Substitute Rating Agency exists, for purposes of determining any increase or decrease in the interest rate on the Notes of a series pursuant to the tables above, (a) such Substitute Rating Agency will be substituted for the last rating agency to provide a rating of such series of Notes but which has since ceased to provide such rating, (b) the relative ratings scale used by such Substitute Rating Agency to assign ratings to senior unsecured debt will be determined in good faith by an independent investment banking institution of national standing appointed by the Company and, for purposes of determining the applicable ratings included in the applicable table above with respect to such Substitute Rating Agency, such ratings will be deemed to be the equivalent ratings used by Moody’s or S&P, as applicable, in such table and (c) the interest rate on the Notes of such series will increase or decrease, as the case may be, such that the interest rate equals the interest rate payable on the Notes of such series on the Issue Date plus the appropriate percentage points, if any, set forth opposite the rating from such Substitute Rating Agency in the applicable table above (taking into account the provisions of clause (b) above) (plus any applicable percentage points resulting from a decreased rating by the other rating agency). For so long as only one rating agency provides a rating of the Notes of a series, any subsequent increase or decrease in the interest rate of such series of Notes necessitated by a reduction or increase in the rating by the agency providing the rating shall be twice the percentage points set forth in the applicable table above. For so long as none of Moody’s, S&P or a Substitute Rating Agency provides a rating of the Notes of a series, the interest rate on the Notes of such series will increase to, or remain at, as the case may be, 2.00 percentage points above the interest rate payable on the Notes of such series on the Issue Date.

(vi) Any interest rate increase or decrease described above will take effect from the Interest Payment Date immediately preceding a rating change which requires an adjustment in the interest rate.

-7-

(vii) Promptly after any change in the interest rate borne by any series of Notes as provided above, the Company shall give the Trustee an Officers’ Certificate to the effect that the interest rate borne by such series of Notes has changed in accordance with this Section 2.07(c) and setting forth the amount of the related increase or decrease and the new interest rate borne by such series of Notes.

(viii) If the interest rate payable on the Notes is increased pursuant to this Section 2.07(c), the term “interest,” as used in the Indenture, as supplemented by this Supplemental Indenture, will be deemed to include any such additional interest unless the context otherwise requires. If the Company defeases or discharges the Indenture in accordance with Section 4.1 of the Indenture, or any series of Notes or certain obligations related thereto in accordance with Sections 4.3 and 10.11 of the Indenture and Section 2.10 hereof, there will be no further adjustment in the interest rate on such series of Notes after such defeasance or discharge.

(ix) The following term has the meaning given to it in this Section 2.07(c)(ix):

“ Substitute Rating Agency ” means a “nationally recognized statistical rating organization” within the meaning of Rule

15c3-1(c)(2)(vi)(F) under the Exchange Act, selected by the Company (as certified by a resolution of the board of directors of the Company and delivered to the Trustee) as a replacement agency for Moody’s, S&P or another Substitute Rating Agency, or all of them, as the case may be.

Section 2.08. Consolidation, Merger and Sale of Assets . For purposes of the Notes of each series, Section 8.1 of the Indenture is amended to add “limited liability company,” immediately after “corporation,” and immediately before “partnership or trust” in clause (1) thereof.

Section 2.09. Place of Payment . The Place of Payment where Notes may be presented or surrendered for payment, where Notes may be surrendered for registration of transfer or exchange and where notices and demands to or upon the Company in respect of the Notes and the Indenture may be served initially is the Corporate Trust Office of the Trustee.

Section 2.10. Defeasance; Discharge . The provisions of Section 4.3 and Section 10.11 of the Indenture will apply to the Notes of each series.

ARTICLE 3

REDEMPTION OF THE NOTES

Section 3.01. Optional Redemption by Company .

(a) Subject to Article XI of the Indenture, the Company shall have the right to redeem the 2014 Notes, the 2018 Notes or the 2038 Notes, in whole or in part, at any time or from time to time, at a redemption price (the “ Optional Redemption Price ”) equal to the greater of:

(i) 100% of the principal amount of the Notes being redeemed, plus accrued and unpaid interest to the Redemption Date; or

(ii) the sum of the present values of the remaining scheduled payments of principal and interest in respect of the Notes being redeemed (exclusive of interest accrued to the Redemption Date of the series to be redeemed) discounted to the Redemption Date of the series to

-8-

be redeemed on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 50 basis points, plus accrued interest on the principal amount being redeemed to the Redemption Date of the series to be redeemed.

Any redemption pursuant to the preceding paragraph will be made upon not less than 30 nor more than 60 days’ prior notice before the Redemption Date of the series to be redeemed to each Holder of the Notes of the series to be redeemed, at the Optional Redemption Price. If Notes are only partially redeemed pursuant to this Section 3.01(a), the Notes of the series to be redeemed will be redeemed by the Trustee in accordance with Section 11.3 of the Indenture; provided that if at the time of redemption the Notes of the series to be redeemed are registered as a Global Note, the Depositary shall determine, in accordance with its procedures, the principal amount of the Notes of the series to be redeemed held by each Holder of such Notes to be redeemed. The Optional Redemption Price shall be paid prior to 12:00 noon, New York time, on the date of such redemption or at such earlier time as the Company determines, provided that the Company shall deposit with the Trustee an amount sufficient to pay the Optional Redemption Price by 10:00 a.m., New York time, on the date such Optional Redemption Price is to be paid.

(b) Notice of any redemption pursuant to this Section 3.01 shall be given as provided in Section 11.4 of the Indenture except that any notice of such redemption shall not specify the related Optional Redemption Price but only the manner of calculation thereof. The Trustee shall not be responsible for the calculation of such Optional Redemption Price. The Company shall calculate such Optional Redemption Price and promptly notify the Trustee thereof.

(c) The following terms have the meanings given to them in this Section 3.01(c):

“ Business Day ” means any calendar day that is not a Saturday, Sunday or legal holiday in New York, New York and on which commercial banks are open for business in New York, New York.

“ Comparable Treasury Issue ” means the United States Treasury security selected by an Independent Investment Banker as having a maturity comparable to the remaining term (“ Remaining Life ”) of the applicable series of Notes to be redeemed that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Notes of such series.

“ Comparable Treasury Price ” means, with respect to any Redemption Date, (i) the average of the Reference Treasury Dealer Quotations for such Redemption Date, after excluding the highest and lowest such Reference Treasury Dealer Quotations, or (ii) if the Independent Investment Banker obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such Quotations.

“ Independent Investment Banker ” means an independent investment banking institution of national standing appointed by the Company.

“ Reference Treasury Dealer ” means (i) each of Banc of America Securities LLC, Deutsche Bank Securities Inc., Greenwich Capital Markets, Inc., J.P. Morgan Securities Inc., UBS Securities LLC and their respective successors, provided, however , that if any of the foregoing shall cease to be a primary U.S. Government securities dealer in the United States (a

-9-

“ Primary Treasury Dealer ”), the Company will substitute therefor another Primary Treasury Dealer and (ii) any other Primary Treasury Dealer selected by the Company.

“ Reference Treasury Dealer Quotations ” means, with respect to each Reference Treasury Dealer and any Redemption Date, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Independent Investment Banker by such Reference Treasury Dealer at 5:00 p.m. on the third Business Day preceding such Redemption Date.

“ Treasury Rate ” means, with respect to any Redemption Date, (i) the yield, under the heading which represents the average for the immediately preceding week, appearing in the most recently published statistical release designated “H.15(519)” or any successor publication which is published weekly by the Board of Governors of the Federal Reserve System and which establishes yields on actively traded United States Treasury securities adjusted to constant maturity under the caption “Treasury Constant Maturities,” for the maturity corresponding to the Comparable Treasury Issue (if no maturity is within three months before or after the Remaining Life, yields for the two published maturities most closely corresponding to the Comparable Treasury Issue shall be determined and the Treasury Rate shall be interpolated or extrapolated from such yields on a straight line basis, rounding to the nearest month) or (ii) if such release (or any successor release) is not published during the week preceding the calculation date or does not contain such yields, the rate per annum equal to the semi-annual equivalent yield to maturity of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such Redemption Date. The Treasury Rate shall be calculated on the third Business Day preceding such Redemption Date.

Section 3.02. Special Mandatory Redemption .

(a) If, for any reason, (i) the Company’s proposed acquisition of the containerboard, packaging and recycling business of Weyerhaeuser Company is not completed on or prior to September 30, 2008 or (ii) the Purchase Agreement is terminated on or prior to September 30, 2008, the Company shall redeem all of the Notes on the Special Mandatory Redemption Date at the Special Mandatory Redemption Price. Notice of such redemption shall be mailed, with a copy to the Trustee, promptly after the occurrence of the event triggering redemption to each Holder of Notes in accordance with Section 11.4 of the Indenture. If funds sufficient to pay the Special Mandatory Redemption Price (including any accrued and unpaid interest) of all of the Notes to be redeemed on the Special Mandatory Redemption Date are deposited with the Paying Agent on or before the Special Mandatory Redemption Date, on and after the Special Mandatory Redemption Date the Notes shall cease to bear interest and, other than the right to receive the Special Mandatory Redemption Price, all rights under the Notes of each series shall terminate.

(b) The following terms have the meanings given to them in this Section 3.02(b):

“ Purchase Agreement ” means the purchase agreement dated as of March 15, 2008, between Weyerhaeuser Company, as the seller, and the Company, as the purchaser.

“ Special Mandatory Redemption Date ” means the earlier to occur of (1) October 30, 2008 if the proposed acquisition has not been consummated on or prior to September 30, 2008 or

-10-

(2) the 30th day (or if such day is not a Business Day, the first Business Day thereafter) following the termination of the Purchase Agreement.

“ Special Mandatory Redemption Price ” means 101% of the aggregate principal amount of the Notes together with accrued and unpaid interest from the Issue Date to but excluding the Special Mandatory Redemption Date.

Section 3.03. Change of Control Triggering Event .

(a) Upon the occurrence of a Change of Control Triggering Event with respect to the Notes of a series, unless (i) the Company has exercised the right to redeem the Notes of such series pursuant to Section 3.01 by giving irrevocable notice to the Trustee in accordance with the Indenture or (ii) the Company has mailed notice of a special mandatory redemption pursuant to Section 3.02, each Holder of Notes of such series will have the right to require the Company to purchase all or a portion of such Holder’s Notes of such series pursuant to the offer described below (the “ Change of Control Offer ”), at a purchase price equal to 101% of the principal amount thereof plus accrued and unpaid interest, if any, to the date of purchase (the “ Change of Control Payment ”), subject to the rights of Holders of Notes of such series on the relevant record date to receive interest due on the relevant Interest Payment Date.

(b) Within 30 days following the date upon which the Change of Control Triggering Event occurred with respect to the Notes of a series, or at the Company’s option, prior to any Change of Control but after the public announcement of the pending Change of Control, the Company shall send, by first class mail, a notice to each Holder of Notes of such series, with a copy to the Trustee, which notice will govern the terms of the Change of Control Offer. Such notice shall state, among other things, the purchase date, which must be no earlier than 30 days nor later than 60 days from the date such notice is mailed, other than as may be required by law (the “ Change of Control Payment Date ”). The notice, if mailed prior to the date of consummation of the Change of Control, shall state that the Change of Control Offer is conditioned on the Change of Control being consummated on or prior to the Change of Control Payment Date.

(c) On the Change of Control Payment Date, the Company shall, to the extent lawful:

(i) accept or cause a third party to accept for payment all Notes or portions of Notes properly tendered pursuant to the Change of Control Offer;

(ii) deposit or cause a third party to deposit with the Paying Agent an amount equal to the Change of Control Payment in respect of all Notes or portions of Notes properly tendered; and

(iii) deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officers’ Certificate stating the aggregate principal amount of Notes or portions of Notes being repurchased and that all conditions precedent in this Section 3.03 to the Change of Control Offer and to the repurchase by the Company of Notes pursuant to the Change of Control Offer have been complied with.

The Company will not be required to make a Change of Control Offer with respect to the Notes of a series if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for such an offer made by the Company and such third party purchases all Notes of such series properly tendered and not withdrawn under its offer.

-11-

(d) The Company shall comply in all material respects with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes of such series as a result of a Change of Control Triggering Event. To the extent that the provisions of any such securities laws or regulations conflict with this Section 3.03, the Company shall comply with those securities laws and regulations and shall not be deemed to have breached its obligations under this Section 3.03 by virtue of any such conflict.

(e) The following terms have the meanings given to them in this Section 3.03(e):

“ Change of Control ” means the occurrence of any of the following after the Issue Date: (1) the direct or indirect sale, lease, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of the assets of the Company and its Subsidiaries taken as a whole to any “person” or “group” (as those terms are used in Section 13(d)(3) of the Exchange Act) other than to the Company or one of its Subsidiaries; (2) the consummation of any transaction (including, without limitation, any merger or consolidation) the result of which is that any “person” or “group” (as those terms are used in Section13(d)(3) of the Exchange Act, it being a