THIRD SUPPLEMENTAL INDENTURE

Exhibit 10.6

THIRD SUPPLEMENTAL INDENTURE

This Third Supplemental Indenture, dated as of July 2, 2008 (this “Supplemental Indenture” or “Guarantee”), among Cellu Tissue – Hauppauge, LLC, a Delaware limited liability company, and Cellu Tissue – Thomaston, LLC, a Delaware limited liability company (collectively, the “Guarantors”), Cellu Tissue Holdings, Inc. (together with its successors and assigns, the “Company”), each other then existing Subsidiary Guarantor under the Indenture referred to below, and The Bank of New York Mellon Trust Company, N.A., as successor trustee to The Bank of New York (“Trustee”) under the Indenture referred to below.

W I T N E S S E T H:

WHEREAS, the Company, the Subsidiary Guarantors and the Trustee have heretofore executed and delivered an Indenture, dated as of March 12, 2004 (as amended, supplemented, waived or otherwise modified, the “Indenture”), providing for the issuance of 9¾% Senior Secured Notes due 2010 of the Company (the “Securities”);

WHEREAS, Section 3.12 of the Indenture provides that after the Issue Date the Company is required to cause each Restricted Subsidiary (other than a Foreign Subsidiary that does not Guarantee any Indebtedness of the Company or any Restricted Subsidiary) created or acquired by the Company or one or more Restricted Subsidiaries or Holdings, in the event that Holdings Guarantees any Indebtedness of the Company or any of its Restricted Subsidiaries, to execute and deliver to the Trustee a supplemental indenture pursuant to which such Subsidiary (or Holdings, if applicable) will unconditionally Guarantee, on a joint and several basis with the other Subsidiary Guarantors, the full and prompt payment of the principal of, premium, if any, and interest on the Securities on a secured basis; and

WHEREAS, pursuant to Section 9.1 of the Indenture, the Trustee and the Company are authorized to execute and deliver this Supplemental Indenture to amend or supplement the Indenture, without the consent of any Securityholder;

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Guarantors, the Company, the other Subsidiary Guarantors and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Securities as follows:

ARTICLE I

Definitions

SECTION 1.1  Defined Terms.  As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recital hereto are used herein as therein defined. 

1

The words “herein,” “hereof” and “hereby” and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular section hereof.

ARTICLE II

Agreement to be Bound; Guarantee

SECTION 2.1  Agreement to be Bound.  Each Guarantor hereby becomes a party to the Indenture as Subsidiary Guarantors and as such will have all of the rights and be subject to all of the obligations and agreements of a Subsidiary Guarantor under the Indenture.  Each Guarantor agrees to be bound by all of the provisions of the Indenture, the Collateral Documents and the Intercreditor Agreement applicable to a Subsidiary Guarantor and to perform all of the obligations and agreements of a Subsidiary Guarantor under the Indenture, the Collateral Documents and the Intercreditor Agreement.

SECTION 2.2   Guarantee.  Each Guarantor agrees, on a joint and several basis with all the existing Subsidiary Guarantors, to fully, unconditionally and irrevocably Guarantee to each Holder of the Securities and the Trustee the Obligations pursuant to Article X of the Indenture on a secured basis.

ARTICLE III

Miscellaneous

SECTION 3.1   Notices.  All notices and other communications to the Guarantors shall be given as provided in the Indenture to the Guarantor, at its address set forth below, with a copy to the Company as provided in the Indenture for notices to the Company.

SECTION 3.2   Parties.  Nothing expressed or mentioned herein is intended or shall be construed to give any Person, firm or corporation, other than the Holders and the Trustee, any legal or equitable right, remedy or claim under or in respect of this Supplemental Indenture or the Indenture or any provision herein or therein contained.

SECTION 3.3   Governing Law.  This Supplemental Indenture shall be governed by, and construed in accordance with, the laws of the State of New York.

SECTION 3.4   Severability Clause.  In case any provision in this Supplemental Indenture shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby and such provision shall be ineffective only to the extent of such invalidity, illegality or unenforceability.

SECTION 3.5   Ratification of Indenture; Supplemental Indentures Part of Indenture.  Except as expressly amended hereby, the Indenture is in all respects ratified and

2

confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect.  This Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of Securities heretofore or hereafter authenticated and delivered shall be bound hereby.  The Trustee makes no representation or warranty as to the validity or sufficiency of this Supplemental Indenture or with respect to the recitals contained herein, all of which recitals are made solely by the other parties hereto.

SECTION 3.6   Counterparts.  The parties hereto may sign one or more copies of this Supplemental Indenture in counterparts, all of which together shall constitute one and the same agreement.

SECTION 3.7   Headings.  The headings of the Articles and the sections in this Guarantee are for convenience of reference only and shall not be deemed to alter or affect the meaning or interpretation of any provisions hereof.

SECTION 3.8  Trustee Makes No Representation.  The recitals contained herein are made by the Company and the Guarantors and not by the Trustee, and the Trustee assumes no responsibility for the correctness thereof.  The Trustee makes no representation as to the validity or sufficiency of this Third Supplemental Indenture. All rights, protections, privileges, indemnities and benefits granted or afforded to the Trustee under the Indenture shall be deemed incorporated herein by this reference and shall be deemed applicable to all actions taken, suffered or omitted by the Trustee under this Third Supplemental Indenture.

[Signature pages follow.]

3

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed as of the date first above written.

Supplemental Indenture

Supplemental Indenture