Common use of SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE Clause in Contracts

SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE. The following exchanges of a part of this Global Note for an interest in another Global Note or for a Definitive Note, or exchanges of a part of another Global Note or Definitive Note for an interest in this Global Note, have been made: FiberTower Corporation ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇, Suite 4800 San Francisco, CA 94107 ▇▇▇▇▇ Fargo Bank, National Association Corporate Trust Services ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, 2nd Floor Dallas, TX 75202-2812 Re: 9.00% Senior Secured Notes due 20[ ] Reference is hereby made to the Indenture, dated as of November 9, 2006 (the “Indenture”), among FiberTower Corporation, as issuer (the “Company”), the Guarantors party thereto, and ▇▇▇▇▇ Fargo Bank, National Association, as Trustee. Capitalized terms used but not defined herein shall have the meanings given to them in the Indenture. (the “Transferor”) owns and proposes to transfer the Notes[s] or interest in such Note[s] specified in Annex A hereto, in the principal amount of $ in such Note[s] or interests (the “Transfer”), to (the “Transferee”), as further specified in Annex A hereto. In connection with the Transfer, the Transferor hereby certifies that:

SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE. The following exchanges of a part of this Global Note for an interest in another Global Note or for a Definitive Note, or exchanges of a part of another Global Note or Definitive Note for an interest in this Global Note, have been made: FiberTower Corporation ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇, Suite 4800 San Francisco, CA 94107 ▇▇▇▇▇ Fargo Bank, National Association Corporate Trust Services ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, 2nd Floor Dallas, TX 75202-2812 Re: 9.00% Mandatorily Redeemable Convertible Senior Secured Notes due 20[ ] 2012 Reference is hereby made to the Indenture, dated as of November 9, 2006 2009 (the “Indenture”), among FiberTower Corporation, as issuer (the “Company”), the Guarantors party thereto, and ▇▇▇▇▇ Fargo Bank, National Association, as Trustee. Capitalized terms used but not defined herein shall have the meanings given to them in the Indenture. , (the “Transferor”) owns and proposes to transfer the Notes[s] or interest in such Note[s] specified in Annex A hereto, in the principal amount of $ in such Note[s] or interests (the “Transfer”), to (the “Transferee”), as further specified in Annex A hereto. In connection with the Transfer, the Transferor hereby certifies that:: [CHECK ALL THAT APPLY]

SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE. The following exchanges of a part of this Global Note for an interest in another Global Note or for a Definitive Note, or exchanges of a part of another Global Note or Definitive Note for an interest in this Global Note, have been made: FiberTower Corporation ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇, Suite 4800 San Francisco, CA 94107 ▇▇▇▇▇ Fargo Bank, National Association Corporate Trust Services ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, 2nd Floor Dallas, TX 75202-2812 Re: 9.00% Senior Secured Notes due 20[ ] Reference is hereby made to the Indenture, dated as of November 9, 2006 (the “Indenture”), among FiberTower Corporation, as issuer (the “Company”), the Guarantors party thereto, and ▇▇▇▇▇ Fargo Bank, National Association, as Trustee. Capitalized terms used but not defined herein shall have the meanings given to them in the Indenture. , (the “Transferor”) owns and proposes to transfer the Notes[s] or interest in such Note[s] specified in Annex A hereto, in the principal amount of $ in such Note[s] or interests (the “Transfer”), to (the “Transferee”), as further specified in Annex A hereto. In connection with the Transfer, the Transferor hereby certifies that:

SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE. The following exchanges of a part of this Global Note for an interest in another Global Note or for a Definitive Note, or exchanges of a part of another Global Note or Definitive Note for an interest in this Global Note, have been made: FiberTower Corporation Date of Exchange Amount of decrease in Principal Amount Amount of increase in Principal Amount Principal Amount of this Global Note following such decrease (or increase) Signature of authorized officer of Trustee or Note Custodian This schedule should be included only if the Note is issued in global form. Norbord Inc. ▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇ – ▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇ ▇▇▇▇▇▇, Suite 4800 San Francisco▇▇▇ ▇▇▇ Attention: Assistant Corporate Secretary Computershare Trust Company, CA 94107 N.A. ▇▇▇ ▇▇▇▇▇▇▇ Fargo Bank▇▇., National Association Corporate Trust Services ▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, 2nd Floor Dallas, TX 75202-2812 Re▇▇ ▇▇▇▇▇ Attention: 9.00% Senior Secured Notes due 20[ ] ▇▇▇▇ ▇. ▇▇▇▇ Reference is hereby made to the Indenture, dated as of November 926, 2006 2013 (the “Indenture”), among FiberTower Corporationbe- tween Norbord Inc., a corporation existing under the federal laws of Canada, as issuer (the “CompanyIssuer”), the Guarantors party theretoand Computershare Trust Company, and ▇▇▇▇▇ Fargo Bank, National AssociationN.A., as trustee (the “Trustee”). Capitalized terms used but not defined herein shall have the meanings given to them in the Indenture. , (the “Transferor”) owns and proposes to transfer the Notes[sNote[s] or interest in such Note[s] specified in Annex A hereto, in the principal amount of $ US$ in such Note[s] or interests (the “Transfer”), to (the “Transferee”), as further specified in Annex A hereto. In connection with the Transfer, the Transferor hereby certifies that:

SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE. The following exchanges of a part of this Global Note for an interest in another Global Note or for a Definitive Note, or exchanges of a part of another Global Note or Definitive Note for an interest in this Global Note, have been made: FiberTower Corporation ▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇, Suite 4800 San Francisco, CA 94107 ▇▇▇▇▇ Fargo Bank, National Association Corporate Trust Services ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, 2nd Floor Dallas, TX 75202-2812 Re: 9.00% Senior Secured Notes due 20[ ] 2016 Reference is hereby made to the Indenture, dated as of November 9December 22, 2006 2009 (the “Indenture”), among FiberTower Corporation, as issuer (the “Company”), the Guarantors party thereto, and ▇▇▇▇▇ Fargo Bank, National Association, as Trustee. Capitalized terms used but not defined herein shall have the meanings given to them in the Indenture. , (the “Transferor”) owns and proposes to transfer the Notes[s] or interest in such Note[s] specified in Annex A hereto, in the principal amount of $ in such Note[s] or interests (the “Transfer”), to (the “Transferee”), as further specified in Annex A hereto. In connection with the Transfer, the Transferor hereby certifies that:

SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE. The following exchanges of a part of this Global Note for an interest in another Global Note or for a Definitive Note, or exchanges of a part of another Global Note or Definitive Note for an interest in this Global Note, have been made: FiberTower Corporation Date of Exchange Amount of decrease in Principal Amount Amount of increase in Principal Amount Principal Amount of this Global Note following such decrease (or increase) Signature of authorized officer of Trustee or Note Custodian This schedule should be included only if the Note is issued in global form. Norbord Inc. ▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇ – ▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇ ▇▇▇▇▇▇, Suite 4800 San Francisco▇▇▇ ▇▇▇ Attention: Assistant Corporate Secretary Computershare Trust Company, CA 94107 N.A. ▇▇▇ ▇▇▇▇▇▇▇ Fargo Bank▇▇., National Association Corporate Trust Services ▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, 2nd Floor Dallas, TX 75202-2812 Re▇▇ ▇▇▇▇▇ Attention: 9.00% Senior Secured Notes due 20[ ] ▇▇▇▇ ▇. ▇▇▇▇ Reference is hereby made to the Indenture, dated as of November 9April 16, 2006 2015 (the “Indenture”), among FiberTower Corporationbetween Norbord Inc., a corporation existing under the federal laws of Canada, as issuer (the “CompanyIssuer”), the Guarantors party theretoand Com- putershare Trust Company, and ▇▇▇▇▇ Fargo Bank, National AssociationN.A., as trustee (the “Trustee”). Capitalized terms used but not defined herein shall have the meanings given to them in the Indenture. , (the “Transferor”) owns and proposes to transfer the Notes[sNote[s] or interest in such Note[s] specified in Annex A hereto, in the principal amount of $ in such Note[s] or interests inter- ests (the “Transfer”), to (the “Transferee”), as further specified in Annex A hereto. In connection with the Transfer, the Transferor hereby certifies that: