PAPER PURCHASE AGREEMENT

Exhibit 10

PAPER PURCHASE AGREEMENT

If Boise chooses not to meet the bid pricing, the relationship will enter Phase-Down (as described in Section 5) ***** beginning January 1 of the following year, unless the parties mutually agree in writing to continue the purchase/supply relationship for all or part of the subject volume.

*****

Omitted material is indicated by *****, pursuant to a Confidential Treatment Request. Omitted material has been filed separately with the Securities and Exchange Commission.

This Agreement has been agreed upon and executed by the parties as of June 25, 2011.

EXHIBIT A

PRODUCTS LIST AND PRODUCT PRICING

Commodity Papers Pricing: Net pricing for each product identified on Exhibit B as a “Commodity Paper” shall be as set forth in this exhibit. *****

2.1 Pricing for products on Exhibit B *****, shall be determined using the pricing rule for Commodity Papers, described above.

Omitted material is indicated by *****, pursuant to a Confidential Treatment Request. Omitted material has been filed separately with the Securities and Exchange Commission.

Boise shall be responsible for product quality or transit damage that may be incurred during shipment from the mill to an OfficeMax facility. OfficeMax shall be responsible for any damages incurred after the shipment has been delivered.

Omitted material is indicated by *****, pursuant to a Confidential Treatment Request. Omitted material has been filed separately with the Securities and Exchange Commission.

Exhibit B (Price List)

This Exhibit has been redacted pursuant to a Confidential Treatment Request. Omitted material has been filed separately with the Securities and Exchange Commission.

EXHIBIT C

GENERAL TERMS AND CONDITIONS

These General Terms and Conditions were prepared for incorporation into the Paper Purchase Agreement to which this Exhibit C is appended (the “Agreement”). They are intended to apply as if fully set forth in the Agreement; provided that if anything in this Exhibit C is inconsistent with the express terms of the Agreement, the terms of the Agreement shall control.

1. Safety and Security Requirements. Whenever the provision of goods or services under the Agreement requires a party to be on the property of the other party, each party shall observe all reasonable security and safety procedures or requirements imposed by the other party on third parties providing like goods or services.

2. Standards of Performance.

2.1 In Respect of Goods. The quality of all goods supplied by Boise to OfficeMax shall be at least commercially equal to the quality of that grade of goods that Boise is selling to others.

2.2 In Respect of Services. All services supplied by either party to the other shall be performed in accordance with the same standard of care that the supplying party observes in providing similar services to other customers.

2.3 Disclaimer of Implied Warranties. EACH PARTY DISCLAIMS ALL WARRANTIES IN RESPECT OF GOODS OR SERVICES SUPPLIED BY IT UNDER THIS AGREEMENT THAT ARE IMPLIED BY LAW OR BY THE TERMS OF THE AGREEMENT, EXCEPT FOR THE WARRANTIES SET FORTH IN SECTION 2.1. THIS DISCLAIMER SHALL NOT BE CONSTRUED TO NEGATE OR LIMIT ANY WARRANTY OF TITLE OR RIGHT TO SELL IMPLIED BY LAW OR CUSTOM OF TRADE AND EACH PARTY EXPRESSLY WARRANTS, IN RESPECT OF ALL GOODS TO BE SOLD, THAT IT WILL HAVE AND WILL CONVEY TO OFFICEMAX GOOD AND MERCHANTABLE TITLE TO SUCH GOODS AND THAT IT WILL WARRANT AND DEFEND SUCH TITLE AGAINST THE CLAIMS OF ALL PERSONS WHATSOEVER.

2.4 Limitation of Liability. Neither party shall be liable for any incidental, indirect, special, collateral, consequential, exemplary, or punitive damages, or lost profits arising from a breach of warranty or any other part of this Agreement. In respect of services, the remedy for failure to meet the standards of service shall be that the party providing the service shall be required to reperform the service without charge. In respect of goods, without limiting the provisions of the first sentence of this Section

2.4, the remedy for failure of the goods to conform to the quality specifications set forth in the Agreement shall be as provided in the Uniform Commercial Code as in force from time to time in the state of Delaware and as specifically set forth in the Agreement.

3. Dispute Resolution. The Dispute Resolution Process set forth in Section 5 shall apply to all disputes which may arise between the parties or their respective subsidiaries or affiliates with regard to course-of-performance disputes arising in the ordinary course of business. Such disputes are referred to as “Covered Disputes.” In case of other disputes, the parties may pursue any and all remedies under applicable law or equity.

4. Dispute Resolution Process.

4.1 Limitation. The procedures provided for by this Agreement shall not apply to any Covered Dispute unless and until either party shall have given written notice to the other party invoking this Agreement. Such notice shall specify, in reasonable detail, the dispute to which it is intended to apply. Such dispute is referred to as the “Noticed Dispute.” The effective date of delivery of such notice is referred to as the “Notice Date.”

4.2 Negotiation. Within 5 days after the Notice Date, each party shall designate, in writing to the other party, the name of one of its senior executive officers who shall be its “Designated Representative” in the dispute resolution process. Designation by either party of its Designated Representative shall constitute a representation by such party that its Designated Representative has full power and authority to resolve the Noticed Dispute. Within 15 days after the Notice Date, each party shall have delivered to the Designated Representative of the other party a written statement of its position. Between 30 and 45 days after the Notice Date, the Designated Representatives shall meet, discuss, and negotiate with respect to the Noticed Dispute for a period not to exceed 10 days.

If the parties are unable to settle the Noticed Dispute through negotiations by the 45th day following the Notice Date, they shall mutually appoint a neutral third-party arbitrator. If the parties are unable to agree upon the neutral third-party arbitrator by the 50th day following the Notice Date, either party may obtain the appointment of a neutral third-party arbitrator by the Chief Judge of the United States District Court for the District of Delaware.

4.3 Arbitration. Within 10 days after appointment of the neutral arbitrator, each party shall submit a written statement to the neutral arbitrator and to the other party advocating its position, and each party may, within ten days after receipt of the other party’s statement, submit to the neutral arbitrator and the opposing party one rebuttal statement. Opening statements shall be no longer than 30 pages of 8 ¹/2” by 11” paper, and rebuttal statements shall be limited to 15 pages of 8 ¹/2” by 11” paper unless otherwise mutually agreed. Within 20 days after submission of the rebuttal statement, on a date and at a place set by the neutral arbitrator, the Designated Representatives

shall meet with the neutral arbitrator to negotiate and resolve the Noticed Dispute. Each Designated Representative may make an oral presentation to the neutral arbitrator. The Designated Representatives of both parties shall be present for such presentations and shall be available at the same location on the following day for arbitrator-sponsored negotiations. If the parties are unable to reach a settlement of the Noticed Dispute, the neutral arbitrator shall, within 20 days thereafter, deliver in writing to each party his or her recommended settlement of the Noticed Dispute. Within ten days after receipt of the neutral arbitrator’s recommended settlement, the parties’ Designated Representatives shall meet at a time and place set by the neutral arbitrator and make a final attempt to resolve the Noticed Dispute. If they are unable to do so, the arbitrator shall make a final decision which shall be final and binding upon the parties.

4.4 Confidentiality.

4.4.1 Each party shall treat all statements, written submissions, and other disclosures made by the other in the course of efforts to resolve the Noticed Dispute (collectively, “Settlement Information”) as confidential information and shall make no disclosure of the Settlement Information to any third party (other than its employees and officers involved in the Noticed Dispute and its counsel and other consultants providing advice in respect of the Noticed Dispute), and it shall require all persons to whom it is permitted to disclose such information to make a similar nondisclosure commitment for the benefit of and enforceable by the party providing such information. Such nondisclosure obligation shall remain in effect for a period of five years from the date of disclosure.

4.4.2 Prior to commencing the arbitration process, the parties shall require the neutral arbitrator to sign a confidentiality agreement in which he or she commits, for the benefit of and on a basis which is enforceable by each party and its respective Affiliates, that he or she will hold the Settlement Information confidential and not disclose it to any party other than the parties, their respective Affiliates, counsel, and advisors and agents involved in the Noticed Dispute, except under order of disclosure by a court of competent jurisdiction or pursuant to a written authorization signed by the party or parties providing the Settlement Information which is to be disclosed.

4.5 Fees and Expenses. The parties shall each cover their own costs and fees associated with the dispute resolution process provided for in this Agreement. The fees and expenses of the neutral arbitrator shall be divided equally by the parties.

4.6 Scope of Obligation; Specific Performance. The parties agree to utilize the settlement procedures outlined above in a good-faith effort to provide for a speedy and economical means of resolving disputes. However, the parties agree that neither party shall be in default or in breach hereof for failure to adhere to any of the procedures outlined above except that (i) compliance with the procedures hereof, in full, when and as required shall be a condition precedent to the other party’s obligation to continue its participation in the negotiation and arbitration process; and (ii) either party may obtain an order of specific performance in respect of the other party’s obligations hereunder.

5. Force Majeure. The term “Force Majeure” shall mean any flood, storm, earthquake, or other act of God, fire, explosion, labor dispute, civil disturbance, military action, shortage of labor or stores, issuance of directive by any legal authority asserting jurisdiction over either of the parties which directive purports to prohibit the performance of any material part of the duties of that party, or other event beyond the control of the party claiming Force Majeure, which event or directive prevents performance by a party or makes performance commercially impracticable.

Each party shall promptly notify the other if there is Force Majeure. Such notice shall describe the Force Majeure, the corrective action to be taken, if any, and the estimated time of the Force Majeure interruption. If either party is prevented from performing any of its obligations hereunder, in whole or in part by reason of Force Majeure, it shall be excused from performance for so long as and to the extent that Force Majeure shall so prevent its performance.

6. Events of Default.

6.1 Payment Defaults. If either party fails to pay any amount owed by it when due, such sum shall earn interest from the date on which it is due at a rate equal to ten percent per annum. Such interest shall be payable on demand. If either party fails to pay any amount owed (including interest accruing under the preceding sentence) within 30 days after its receipt of written demand therefore, the other party shall have the right, in addition to any other right provided under applicable law or this Agreement for such breach, to terminate this Agreement, or to suspend its performance until payment of such delinquent sum is made in full. Complaints or claims by a party under this Agreement regarding standards of performance or quality will be subject to the dispute resolution provisions hereunder, but in no event will excuse a party from paying the purchase price for delivered goods in full when due.

6.2 Nonpayment Defaults. If either party commits any breach of this Agreement, other than those described in Section 6.1 above, or if either party commits any of the breaches described in such section on a repeated basis so as to materially frustrate the reasonable business expectations of the other party in respect of this Agreement, the other party may, if such breach is not cured within 60 days after the complaining party gives notice of such breach to the party in breach, terminate this Agreement. Such remedy shall be in addition to any other remedy which may be available under applicable law or the terms hereof for such breach. Notwithstanding the foregoing, if the nature of the breach complained of is such that its cure may be reasonably expected to take more than 60 days to execute, no right to terminate shall accrue so long as the party in breach shall have commenced its efforts to effect a cure and shall be diligently pursuing such efforts.

7. Confidentiality. The parties hereby covenant and agree to hold in trust and maintain confidential all Confidential Information relating to the other party or any of its Affiliates. For purposes of this Agreement, “Confidential Information” shall mean all information disclosed by either party to the other in connection with this Agreement, whether orally, visually, in writing, or in any other tangible form, including but not limited to product pricing, technical, economic, and business data, records, know-how, flow sheets, drawings, business plans, computer information databases, inventions, processes, and the like, including but not limited to, the terms of this Agreement. The parties shall not divulge Confidential Information to third parties without the prior written consent of the other party except:

7.1 When such information has become a matter of public knowledge without wrongful action by the disclosing party;

7.2 When such information was in the possession of the party obligated to maintain confidentiality prior to its receipt thereof by the other party; and

7.3 When such disclosure is required by law; provided that if either party is involved in litigation or an administrative proceeding in which a third party is requesting disclosure of Confidential information, it shall promptly notify the disclosing party of such fact so as to permit the disclosing party to appear in such proceeding to protect its interest in nondisclosure of such Confidential Information; and

7.4 Boise may disclose this Agreement and related Confidential Information to its financing sources provided that such sources sign an agreement agreeing to keep the terms and conditions contained in the Agreement confidential.

8. Notices. Any notice or demand required or permitted to be given under the terms of this Agreement shall be deemed to have been duly given or made if given by any of the following methods:

8.1 Deposited in the United States mail, in a sealed envelope, postage prepaid, by registered or certified mail, return receipt requested, or hand delivered, respectively addressed as follows:

8.2 Sent to the above address via an established national overnight delivery service (such as Federal Express), charges prepaid; or

8.3 Sent via any electronic communications method, provided the sender obtains written confirmation of receipt of the communication by the electronic communication equipment at the office of the addressee listed above; provided also that, if this method is used, the party shall immediately follow such notice with a second notice in one of the methods set forth in subsections 10.1 or 10.2 above.

Notices shall be effective on the day sent if sent in accordance with Section 8.3, on the first business day after the day sent, if sent, in accordance with Section 8.2 and on the seventh business day after the day sent, if sent in accordance with Section 8.1.

9. Insurance and Indemnity. At all times while Boise continues to be a vendor to OfficeMax, Boise shall purchase and maintain a commercial general liability (occurrence) policy, which policy shall include coverage for premises and operations; products and completed operations; contractual liability; broad form property damage, and personal injury liability. The policy shall have a combined single limit for bodily injury and property damage of $5,000,000 each occurrence; $5,000,000 aggregate for products/completed operations; and $5,000,000 general aggregate. Umbrella/Excess limits may be used to comply with the general liability limit requirements. Boise’s insurance company must have a minimum A.M. best Rating of A-VII or better. Insurance carried by Boise will be primary to any insurance carried by OfficeMax. Any other insurance or self-insurance maintained by Boise shall be in excess of and not contribute to Boise’s insurance.

As soon as possible (January 1 for all succeeding years), Boise shall deliver to OfficeMax, or OfficeMax’s designee per written instruction, a certificate from Boise’s insurer evidencing the required coverage and naming OfficeMax Incorporated, its subsidiaries, affiliates, corporate parent, directors, officers, and employees as additional insured’s with respect to liability or any claims of liability arising out of the sale of products to OfficeMax, including the design and manufacture thereof. The certificate shall provide on its face that the policies it represents will not be terminated, amended, or allowed to expire without 30 days’ prior written notice to OfficeMax; and such

certificate shall further provide on its face that the policies it represents contains a severability of interests clause, generally providing, “the insurance afforded applies separately to each insured against whom claim is made or suit is brought, except with respect to the limits of the company’s liability”. Failure of OfficeMax to demand such certificate or other evidence of full compliance with these insurance requirements or failure of OfficeMax to identify a deficiency from evidence that is provided shall not be construed as a waiver of Vendor’s obligation to maintain such insurance.

Boise further agrees to defend, indemnify and hold harmless OfficeMax, its subsidiaries, affiliates, corporate parent, directors, officers, and employees from and against all causes of action, claims, liabilities, costs, and expenses of any kind, whether actual or alleged, including court costs and attorneys fees, arising out of or related to any products or goods sold by Boise to OfficeMax, except where such claim is wholly attributable to the fault of OfficeMax.

10. Waiver of Subrogation. Each party waives all rights that each might now or hereafter have against the other, its subsidiaries, or affiliates or against the officers, directors, or employees of any of the foregoing to the extent that the loss so waived is compensated by the property damage insurance required hereby or in fact carried by the party suffering such loss (without regard to any deductible or risk retention feature of such insurance).

11. Assignment. This Agreement shall be binding upon the parties and their successors and assigns, but no party shall make any sale, assignment, or other transfer of all or any portion of its rights hereunder without the prior written consent of the other party, which consent shall not be unreasonably withheld, provided, however, that Boise may assign this Agreement without OfficeMax’ consent upon the sale of all, or substantially all, of its paper manufacturing assets provided that the party purchasing such assets expressly agrees in writing to assume and fully perform all of Boise’s obligations hereunder. In the event of any restructuring or reorganization of OfficeMax, or sale of all or a substantial portion of the assets or the business of OfficeMax, this Agreement will continue to be binding upon OfficeMax and will also become binding on any additional entity which acquires all or a substantial portion of OfficeMax’s business (but, in the case of such additional entity, only with respect to the portion of the OfficeMax business it acquires).

12. Severability and Renegotiation. If any part of this Agreement is found to be illegal, void, or unenforceable, such illegality, invalidity, or unenforceability shall not extend beyond the part affected, and unaffected parts of this Agreement will continue in full force and will be binding on the parties. Should any term or provision of this Agreement be found invalid by any court or regulatory body having jurisdiction thereover, the parties shall immediately use their best efforts to renegotiate such term or provision of the Agreement to eliminate such invalidity.

13. Independent Contractor. In performing services under this Agreement, each party shall act solely as an independent contractor; neither party nor any of its

employees or agents shall be treated as or deemed to be employees of the other. Nothing in this Agreement shall be construed to create a partnership, agency, joint venture, or employer-employee relationship between the parties. Neither party shall hold itself out or otherwise represent itself to any person or entity as anything other than an independent contractor of the other party.

14. Right of Offset. All debts and obligations of OfficeMax and Boise to each other are mutual and subject to setoff. For purposes of this paragraph, “OfficeMax” and “Boise” shall be deemed to include each party’s respective subsidiaries and affiliates which directly or indirectly control or are controlled by that party.

15. Nonwaiver. Any waiver, at any time, by any part of its rights, remedies, duties, and/or obligations with respect to any matters arising in connection with this Agreement, shall not be deemed a waiver of any other right, remedy, duty, and/or obligation with respect to such matter or with respect to any subsequent matter.

16. Choice of Law and Jurisdiction. This Agreement shall be governed, interpreted, and enforced under the laws of the state of Delaware, without regard to its choice of law rules. The courts of the state of Delaware and federal courts sitting therein shall have exclusive jurisdiction to hear and settle litigation in respect of this Agreement or, subject to the last sentence of this section, any litigation that arises between the parties. In any suit between the parties or their Affiliates; each party hereby consents to receive service of process in any jurisdiction in which it is doing business, including without limitation, the state of its incorporation, provided that such service of process is issued by a federal or state court of general jurisdiction sitting in Delaware. This Section 19 shall not apply in respect of any cross claim brought in any litigation initiated by a person other than a party or one of its Affiliates in a jurisdiction other than Delaware.

17. Captions. All indices, titles, subject headings, and similar items in this Agreement are provided for the purpose of reference and convenience and are not intended to be inclusive, definitive, or to affect the meaning of the content or scope of this Agreement.

18. Interpretation. As used in this Agreement, the masculine gender shall include the feminine or neuter gender, and the plural shall include the singular wherever appropriate.

19. Amendment. This Agreement may be amended only by a written instrument signed by the senior most executive of each party. No failure of any party to insist upon strict performance of obligations owed it hereunder by the other party shall waive or release such party’s right to insist on strict performance of such obligation in the future.

20. Counterparts. This Agreement may be executed in two or more duplicate counterparts and upon such execution shall be considered a single document as though each party had executed the same counterpart.

21. Audits. Each party shall have the right to audit the other party’s books and accounts to verify volumes, costs, pricing and price adjustments pursuant to this Agreement once per year. Such audits shall be conducted at the expense of the party requesting the audit.

22. Entire Agreement. The terms and provisions herein contained constitute the entire agreement between the parties and supersede all agreements, either verbal or written, between the parties with respect to the subject matter of this Agreement.

23. Brand Ownership. Boise shall own the brand names of all products sold under this Agreement that are produced by Boise, except for the OfficeMax brand names.