Document:

EX-10.5

 Exhibit 10.5 

JOINDER AGREEMENT TO REGISTRATION RIGHTS AGREEMENT 

July 7, 2014 
 Reference is hereby
made to the Registration Rights Agreement, dated as of June 13, 2014 (the “Registration Rights Agreement”), by and among Weyerhaeuser Real Estate Company (the “Issuer”) and the Representatives on behalf of the several
Initial Purchasers concerning registration rights relating to the Issuer’s 5.875% Senior Notes due 2024 (the “Securities”). Unless otherwise defined herein, terms defined in the Registration Rights Agreement and used herein shall have
the meanings given them in the Registration Rights Agreement. 
 1. Joinder. Each of the undersigned hereby acknowledges that it has
received a copy of the Registration Rights Agreement and absolutely, unconditionally and irrevocably acknowledges and agrees with the Initial Purchasers that by its execution and delivery hereof it shall (i) join and become a party to the
Registration Rights Agreement and be deemed to be a Guarantor under the Registration Rights Agreement; (ii) be bound by all covenants, agreements, representations, warranties and acknowledgements applicable to such party as set forth in and in
accordance with the terms of the Registration Rights Agreement; and (iii) perform all obligations and duties as required of it as a Guarantor in accordance with the Registration Rights Agreement. 

2. Governing Law. This Joinder Agreement and any claim, controversy or dispute arising under or related to this Joinder Agreement shall be
governed by and construed in accordance with the laws of the State of New York. 
 3. Counterparts. This Joinder Agreement may be executed
in any number of counterparts and by the parties hereto in separate counterparts, each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. 

4. Amendments. No amendment or waiver of any provision of this Joinder Agreement, nor any consent or approval to any departure therefrom,
shall in any event be effective unless the same shall be in writing and signed by the parties hereto. 
 5. Headings. The headings in this
Joinder Agreement are for convenience of reference only and shall not limit or otherwise affect the meaning hereof. 
 [Signature Page
Follows] 

 IN WITNESS WHEREOF, the undersigned have executed this Joinder Agreement as of the date first
written above. 
  

			
	TRI POINTE HOLDINGS, INC.
	MARACAY 91, L.L.C.
	MARACAY HOMES, L.L.C.
	MARACAY BRIDGES, LLC
	MARACAY VR, LLC
	PARDEE HOMES
	PARDEE HOMES OF NEVADA
	THE QUADRANT CORPORATION
	TRENDMAKER HOMES, INC.
	WINCHESTER HOMES, INC,
		
	By:	 	 /s/ Michael D. Grubbs

	Name:	 	Michael D. Grubbs
	Title:	 	Chief Financial Officer
	
	MARACAY THUNDERBIRD, L.L.C.,
	By: Maracay Homes, L.L.C., its Manager
		
	By:	 	 /s/ Michael D. Grubbs

	Name:	 	Michael D. Grubbs
	Title:	 	Chief Financial Officer
	
	TRI POINTE COMMUNITIES, INC.,
		
	By:	 	 /s/ Michael D. Grubbs

	Name:	 	Michael D. Grubbs
	Title:	 	Chief Financial Officer
	
	TRI POINTE CONTRACTORS, LP,
	By: TRI Pointe Communities, Inc., its General Partner
		
	By:	 	 /s/ Michael D. Grubbs

	Name:	 	Michael D. Grubbs
	Title:	 	Chief Financial Officer

 [Signature Page to Registration Rights Joinder (2024 Notes)]EX-10.6

 Exhibit 10.6 

TAX SHARING AGREEMENT 

THIS TAX SHARING AGREEMENT, dated as of July 7, 2014 (this “Agreement”), is among Weyerhaeuser Company, a Washington
corporation (“Weyerhaeuser”), Weyerhaeuser Real Estate Company, a Washington corporation (“WRECO”), and TRI Pointe Homes, Inc., a Delaware corporation (“Parent”). 

WHEREAS, prior to the date hereof, Weyerhaeuser, WRECO, Parent and Topaz Acquisition, Inc., a Washington corporation and a wholly owned
subsidiary of Parent (“Merger Sub”), entered into a Transaction Agreement, dated as of November 3, 2013 (the “Transaction Agreement”), providing for, among other things, (i) the distribution by
Weyerhaeuser NR Company, a Washington corporation and a wholly owned subsidiary of Weyerhaeuser (“WNR”), to Weyerhaeuser of all the issued and outstanding common shares of WRECO (the “WRECO Spin”), (ii) the
distribution by Weyerhaeuser of all the issued and outstanding common shares of WRECO, on a pro rata basis, or, at Weyerhaeuser’s election, in an exchange offer, or a combination thereof, to some or all of its shareholders (the
“Distribution”) and (iii) the merger of Merger Sub with and into WRECO (the “Merger”), with WRECO surviving the Merger and becoming a wholly owned subsidiary of Parent, in each case on the terms and subject to
the conditions set forth in the Transaction Agreement; 
 WHEREAS, prior to January 1, 2010, Weyerhaeuser was the parent of an
affiliated group within the meaning of Section 1504(a) of the Code that included WRECO; 
 WHEREAS, after December 31, 2009,
Weyerhaeuser elected to be taxed as a real estate investment trust, and WNR became the parent of an affiliated group within the meaning of Section 1504(a) of the Code that included WRECO; and 

WHEREAS the parties hereto intend the Transactions to qualify for the Intended Tax Treatment. 

NOW, THEREFORE, the parties hereto, intending to be legally bound hereby, agree as follows: 

ARTICLE I 
 Definitions;
Interpretation 
 SECTION 1.01. Definitions. (a) For purposes of this Agreement, the following terms shall have the
following meanings: 
 “Active Trade or Business” means the active conduct (determined in accordance with
Section 355(b) of the Code) of the business conducted by the WRECO Group members. For these purposes, members shall include only those members that are part of WRECO’s “separate affiliated group” within the meaning of
Section 355(b)(3)(B) of the Code. 

 “Additional Costs” means losses, damages or expenses, including reasonable legal
fees and expenses, to the extent arising or resulting from the imposition, assessment or assertion of any Tax or adjustment against a party with respect to an amount for which such party is entitled to indemnification under this Agreement. 

“Adjustment Request” means any formal or informal claim or request for a Refund filed with any Taxing Authority. 

“Agreement” has the meaning set forth in the preamble. 

“Applicable Penalty Standard” means the standard under applicable Law for avoiding the imposition of penalties on the
taxpayer and/or the tax return preparer. 
 “Code” means the U.S. Internal Revenue Code of 1986, as amended, and the
Treasury regulations promulgated thereunder. 
 “Covered Compensation Arrangement” has the meaning set forth in
Section 4.02(b)(i). 
 “Distribution” has the meaning set forth in the recitals. 

“Equity Compensation Opinion” means an opinion obtained by Parent (at its sole expense), in form and substance reasonably
satisfactory to Weyerhaeuser, providing that (i) the issuance of options, restricted stock and/or deferred stock units in respect of Parent Capital Stock or WRECO Capital Stock, as the case may be, to a Safe Harbor VIII Person or a Parent
retirement plan (or other eligible retirement plan under Safe Harbor IX in Treasury Regulation Section 1.355-7(d)), as applicable, would not affect the Intended Tax Treatment and (ii) the shares of Parent Capital Stock or WRECO Capital
Stock issued upon the exercise or vesting of the options, restricted stock and/or deferred stock units described in clause (i) above would satisfy the requirements of Safe Harbor VIII or Safe Harbor IX of Treasury Regulation
Section 1.355-7(d), as applicable. Any Equity Compensation Opinion shall be delivered by nationally recognized U.S. tax counsel acceptable to Weyerhaeuser. 

“Final Determination” means the final resolution of any Tax liability for any Tax period by or as a result of (i) a
final and unappealable decision, judgment, decree or other order by any court of competent jurisdiction, (ii) a final settlement with the IRS, a closing agreement or accepted offer in compromise under Section 7121 or 7122 of the Code, or a
comparable arrangement under the Laws of another jurisdiction, (iii) any allowance of a Refund in respect of an overpayment of Tax, but only after the expiration of all periods during which such amount may be recovered by the jurisdiction
imposing such Tax or (iv) any other final disposition, including by reason of the expiration of the applicable statute of limitations. 

“Income Tax” means any income tax imposed by Title 26 of the Code, or any similar provision of state, local or foreign Tax
Law. 
 “Indemnifying Party” has the meaning set forth in Section 5.01. 

  
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 “Indemnitee” has the meaning set forth in Section 5.01. 

“IRS” means the U.S. Internal Revenue Service. 

“Joint Return” means any Tax Return (including any consolidated, combined or unitary Tax Return) that includes at least one
Weyerhaeuser Group member and at least one WRECO Group member. 
 “Merger” has the meaning set forth in the recitals. 

“Merger Sub” has the meaning set forth in the recitals. 

“Non-Income Tax Return” has the meaning set forth in Section 3.01(d). 

“Option Amount” means an amount, in the aggregate, of options, restricted stock, and deferred stock units which, if and when
exercised or acquired, would result in Parent issuing a number of shares of Parent Capital Stock equal to 10% of the shares of Parent Capital Stock outstanding immediately after the Effective Time. 

“Parent” has the meaning set forth in the preamble. 

“Parent Capital Stock” means (i) all classes or series of outstanding capital stock of Parent for U.S. federal income
Tax purposes, including common stock and all other instruments treated as outstanding equity in Parent for U.S. federal income Tax purposes, and (ii) all options, warrants and other rights to acquire such capital stock. 

“Parent Representation Letter” means the representation letters executed by Parent in connection with the Tax Opinion and the
Parent Merger Tax Opinion. 
 “Parent Section 355(e) Event” means any event(s) involving Parent Capital Stock or any
assets of the RMT Group which cause the Distribution to be a taxable event as a result of the application of Section 355(e) of the Code or a similar provision of state or local Tax Law. For the avoidance of doubt, an event involving Parent
Capital Stock or any assets of Parent or any of its Affiliates shall include, without limitation, the Merger. 
 “Penalty
Objection” means a non-preparing party’s good faith, written determination that a position taken by a preparing party on a draft WRECO Separate Return subject to Section 3.01(b) would not satisfy the Applicable Penalty Standard.

 “Post-Distribution Period” means any taxable period beginning after the Distribution Date. 

“Pre-Distribution Period” means any taxable period ending on or before the close of the Distribution Date. 

“Pre-Transaction Agreement Period” means any Tax period ending on or before the date of the Transaction Agreement, and,
solely for purposes of Article II, the portion of any Straddle Period ending on or before the date of the Transaction Agreement. 

  
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 “Refund” means any cash refund of Taxes or reduction of Taxes by means of
credit, offset or otherwise, together with any interest received thereon. 
 “Restricted Period” means the period
commencing upon the Closing Date and ending at the close of business on the first day following the second anniversary of the Closing Date. 

“RMT Group” means Parent and each of its Subsidiaries and the WRECO Group (in each case, including any successors thereof).

 “RMT Issue” has the meaning set forth in Section 5.02. 

“Ruling” means a private letter ruling from the IRS, in form and substance reasonably satisfactory to Weyerhaeuser, providing
that the completion of a proposed action by the RMT Group (or any member thereof) prohibited by Section 4.02(b) or (c) would not affect the Intended Tax Treatment. 

“Safe Harbor VIII Person” means a Parent or WRECO employee, independent contractor, director or other Person permitted to
receive Parent Capital Stock or WRECO Capital Stock under Safe Harbor VIII in Treasury Regulation Section 1.355-7(d). 

“Straddle Period” means a Tax period beginning on or before and ending after the date of the Transaction Agreement. 

“Tax” or “Taxes” means all forms of taxation, whenever created or imposed, and whether of the United States
or elsewhere, and whether imposed by a federal, state, municipal, governmental, territorial, local, foreign or other body, and without limiting the generality of the foregoing, shall include net income, gross income, gross receipts, sales, use,
value added, ad valorem, transfer, recording, franchise, profits, license, lease, service, service use, payroll, wage, withholding, employment, unemployment insurance, workers compensation, social security, excise, severance, stamp, business
license, business organization, occupation, premium, property, environmental, windfall profits, customs, duties, alternative minimum, estimated or other taxes, fees, premiums, assessments or charges of any kind whatever imposed or collected by any
Governmental Entity or political subdivision thereof, together with any related interest and any penalties, additions to such tax or additional amounts imposed with respect thereto by such Governmental Entity or political subdivision. 

“Tax Advisor” has the meaning set forth in Section 6.01. 

“Tax Contest” means an audit, review, examination or any other administrative or judicial proceeding with the purpose or
effect of redetermining Taxes (including any administrative or judicial review of any Adjustment Request). 
 “Tax Opinion”
means the opinion obtained by Weyerhaeuser with respect to the Intended Tax Treatment of the WRECO Spin, the Distribution and the Merger. 

  
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 “Tax Records” means any Tax Returns, Tax Return work papers, documentation
relating to any Tax Contests, and any other books of account or records (whether or not in written, electronic, or other tangible or intangible forms and whether or not stored on electronic or any other medium) required to be maintained under the
Code or other applicable Tax Laws or under any record retention agreement with any Taxing Authority. 
 “Tax Return” means
any return, filing, report, questionnaire, information statement, claim for Refund, or other document required or permitted to be filed, including any amendments thereto, for any Tax period with any Taxing Authority. 

“Taxing Authority” means any Governmental Entity imposing Taxes. 

“Transaction Agreement” has the meaning set forth in the recitals. 

“Transaction Taxes” means (i) all Taxes of any Weyerhaeuser Group or WRECO Group member, as the case may be, resulting
from, or arising in connection with, the failure of any of the WRECO Spin, the Distribution and the Merger to qualify for the Intended Tax Treatment, and (ii) all corresponding state and local income and franchise Taxes. 

“Transfer Taxes” means any stamp, sales, use, gross receipts, value added, goods and services, harmonized sales, land
transfer or other transfer Taxes imposed in connection with the Transactions. For the avoidance of doubt, Transfer Taxes shall not include any income or franchise Taxes payable in connection with the Transactions. 

“Transfer Tax Returns” means any Tax Return with respect to any Transfer Taxes imposed in connection with the Transactions.

 “Unqualified Opinion” means an opinion obtained by Parent or WRECO (at its sole expense), in form and substance
reasonably satisfactory to Weyerhaeuser, providing that the completion of a proposed action by the RMT Group (or any member thereof) prohibited by Section 4.02(b) or (c) would not affect the Intended Tax Treatment. Any Unqualified Opinion
shall be delivered by nationally recognized U.S. tax counsel acceptable to Weyerhaeuser. 
 “Weyerhaeuser” has the meaning
set forth in the preamble. 
 “Weyerhaeuser Affiliated Group” means, prior to January 1, 2010, Weyerhaeuser and each
of its Subsidiaries, including any corporations that would be members of an affiliated group if they were includible corporations under Section 1504(b) of the Code (in each case, including any successors thereof). 

“Weyerhaeuser Group” means Weyerhaeuser, the Weyerhaeuser Affiliated Group and the WNR Affiliated Group. 

“Weyerhaeuser Group Taxes” means, in each case other than Transfer Taxes and Transaction Taxes, (i) any Income Tax
imposed on or payable by the Weyerhaeuser Affiliated Group or any member thereof for any Tax period, (ii) any Income Tax imposed on or payable by the WNR Affiliated Group or any member thereof for any Tax period, (iii) any Income Tax

  
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imposed on Weyerhaeuser for any period after December 31, 2009, (iv) any Tax other than Income Tax imposed on or payable by the Weyerhaeuser Group or any member thereof for any Tax
period, (v) any Tax imposed on or payable by the WRECO Group or any member thereof for any Pre-Transaction Agreement Period, and (vi) all Taxes of any and all members of the Weyerhaeuser Group for any period by reason of any member of the
WRECO Group being liable for such Taxes pursuant to Treasury Regulation Section 1.1502-6 or any analogous provision of state, local or foreign law or as a transferee, successor or otherwise. 

“Weyerhaeuser Issue” has the meaning set forth in Section 5.02(b). 

“Weyerhaeuser Representation Letter” means the representation letters executed by Weyerhaeuser in connection with the
delivery of the Tax Opinion and the Parent Merger Tax Opinion. 
 “Weyerhaeuser Tax Assets” has the meaning set forth in
Section 2.04. 
 “Weyerhaeuser Tax Attribute” means (i) any deductions or losses associated with WRI or the
Coyote Springs Excluded Assets with respect to both federal and state Taxes and (ii) any Tax credits under Section 38 of the Code reflected on a Joint Return. 

“WNR” has the meaning set forth in the recitals. 

“WNR Affiliated Group” means, after December 31, 2009, WNR and each of its Subsidiaries, including any corporations that
would be members of an affiliated group if they were includible corporations under Section 1504(b) of the Code (in each case, including any successors thereof), but excluding any entity that is a member of the WRECO Group. 

“WRECO” has the meaning set forth in the preamble. 

“WRECO Capital Stock” means (i) all classes or series of outstanding capital stock of WRECO for U.S. federal income Tax
purposes, including common stock and all other instruments treated as outstanding equity in WRECO for U.S. federal income Tax purposes, and (ii) all options, warrants and other rights to acquire such capital stock. 

“WRECO Group” means WRECO and each of its Subsidiaries, including any corporations that would be members of an affiliated
group if they were includible corporations under Section 1504(b) of the Code (in each case, including any successors thereof), except for Pardee Coyote, WRI and any Subsidiary of WRI. 

“WRECO Group Taxes” means, in each case other than Transfer Taxes and Transaction Taxes, (i) any Tax imposed on or
payable by the WRECO Group or any member thereof for a Tax period beginning after the date of the Transaction Agreement, and (ii) any Tax imposed on or payable by the WRECO Group or any member thereof for the portion of a Straddle Period
beginning after the date of the Transaction Agreement (other than any such Tax payable solely by reason of membership in any affiliated, consolidated, combined or unitary group at any time on or prior to the date of the Transaction Agreement,
including by reason of Treasury Regulation Section 1.1502-6). 

  
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 “WRECO Separate Return” means any Tax Return (other than a Joint Return) that
includes any WRECO Group member (including any consolidated, combined or unitary Tax Return). 
 “WRECO Spin” has the
meaning set forth in the recitals. 
 “Weyerhaeuser Subsidiary” shall have the meaning given to such term in the
Transaction Agreement. For purposes of this Agreement, neither WRECO nor any WRECO Subsidiary shall be a Weyerhaeuser Subsidiary. 
 (b)
Capitalized terms used but not defined herein shall have the meanings given to such terms in the Transaction Agreement. 
 SECTION 1.02.
Interpretation. When a reference is made in this Agreement to a Section, such reference shall be to a Section of this Agreement unless otherwise indicated. The headings contained in this Agreement are for reference purposes only and shall not
affect in any way the meaning or interpretation of this Agreement. Whenever the words “include”, “includes” or “including” are used in this Agreement, they shall be deemed to be followed by the words “without
limitation”. The words “hereof”, “hereby”, “herein” and “hereunder” and words of similar import when used in this Agreement shall refer to this Agreement as a whole and not to any particular provision of
this Agreement. The definitions contained in this Agreement are applicable to the singular as well as the plural forms of such terms. Each of the parties hereto has participated in the drafting and negotiation of this Agreement. If any ambiguity or
question of intent or interpretation arises, this Agreement must be construed as if it is drafted by all the parties hereto, and no presumption or burden of proof shall arise favoring or disfavoring any party by virtue of authorship of any of the
provisions of this Agreement. 
 ARTICLE II 

Allocation of Taxes 

SECTION 2.01. Ordinary Course Taxes. (a) Except as provided in Sections 2.02 and 2.03, Weyerhaeuser shall be responsible for, and
shall indemnify, defend and hold harmless each RMT Group member from and against, all Weyerhaeuser Group Taxes. 
 (b) Except as provided in
Sections 2.02 and 2.03, Parent shall be responsible for, and shall indemnify, defend and hold harmless Weyerhaeuser and each Weyerhaeuser Subsidiary from and against, all WRECO Group Taxes. 

(c) If, with respect to any WRECO Group Tax, Weyerhaeuser or any Weyerhaeuser Subsidiary receives (or realizes) a Refund, Weyerhaeuser shall
remit, or cause to be remitted, to WRECO, within 30 days, the amount of such Refund net of any Taxes incurred by Weyerhaeuser and the Weyerhaeuser Subsidiaries in connection with the Refund. 

(d) Except as provided in Section 2.01(e), if, with respect to any Weyerhaeuser Group Tax, the RMT Group (or any member thereof) receives
(or realizes) a Refund, Parent shall remit, or cause to be remitted, to WNR, within 30 days, the amount of such Refund net of any Taxes incurred by the RMT Group (or any member thereof) in connection with the Refund. 

  
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 (e) Parent shall cause the WRECO Group, except to the extent not permitted by Law, to elect to
forego carrybacks of any net operating losses, capital losses, credits or other Tax benefits of the WRECO Group to the extent such carryback would result in an adjustment to a Joint Return. If Weyerhaeuser or any Weyerhaeuser Subsidiary receives (or
realizes) a Refund as a result of any carryback permitted by the previous sentence, Weyerhaeuser shall remit, or cause to be remitted, to WRECO, within 30 days, the amount of such Refund net of any Taxes incurred by Weyerhaeuser and the Weyerhaeuser
Subsidiaries in connection with the Refund; provided, however, that, if a Taxing Authority subsequently reduces or disallows such Refund, Parent shall cause WRECO, within five days of the reduction or disallowance, to return to the
relevant payor the amount previously remitted to WRECO, plus interest at the rate determined under applicable Tax Law. 
 (f) In any case in
which a Tax is assessed with respect to a Straddle Period, the Taxes, if any, attributable to a Straddle Period shall be allocated (i) to the period up to and including the date of the Transaction Agreement, on the one hand, and (ii) to
the period subsequent to the date of the Transaction Agreement, on the other hand, in proportion to the number of days in each such period. 

SECTION 2.02. Transaction Taxes. (a) Subject to Section 2.02(c), Parent shall indemnify, defend and hold harmless
Weyerhaeuser and each Weyerhaeuser Subsidiary from and against any Transaction Taxes attributable to: 
 (i) any inaccurate
representation of fact, plan or intent made by Parent in Section 4.01(b) of this Agreement or in the Parent Representation Letter; 

(ii) any action or omission by an RMT Group member in the Post-Distribution Period that is inconsistent with any covenant made
by WRECO or Parent in this Agreement, including Section 4.02, other than any action or omission that was taken or omitted in reliance upon any representation, warranty or covenant made by Weyerhaeuser in this Agreement or the Weyerhaeuser
Representation Letter to the extent such representation or warranty is incorrect or such covenant was breached, in whole or in relevant part; or 

(iii) any other action or omission by an RMT Group member in the Post-Distribution
Period, other than any action or omission (x) contemplated under any Transaction Document or (y) that was taken or omitted in reliance upon any representation, warranty or covenant made by Weyerhaeuser in this Agreement or the Weyerhaeuser
Representation Letter to the extent such representation or warranty is incorrect or such covenant was breached, in whole or in relevant part. 

(b) Subject to Section 2.02(c), Weyerhaeuser shall indemnify, defend and hold harmless each RMT Group member from and against any
Transaction Taxes attributable to: 
 (i) any inaccurate representation of fact, plan or intent made by Weyerhaeuser in
Section 4.01(a) of this Agreement or in the Weyerhaeuser Representation Letter; 

  
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 (ii) any action or omission by Weyerhaeuser or a Weyerhaeuser Subsidiary that is
inconsistent with any covenant made by Weyerhaeuser in this Agreement, including Section 4.02, other than any action or omission that was taken or omitted in reliance upon any representation, warranty or covenant made by Parent in this
Agreement or the Parent Representation Letter to the extent such representation or warranty is incorrect or such covenant was breached, in whole or in relevant part; or 

(iii) any other action or omission by Weyerhaeuser or a Weyerhaeuser Subsidiary, other than any action or omission
(x) contemplated under any Transaction Document or (y) that was taken or omitted in reliance upon any representation, warranty or covenant made by Parent in this Agreement or the Parent Representation Letter to the extent such
representation or warranty is incorrect or such covenant was breached, in whole or in relevant part. 
 (c) Parent shall not be liable for
any Transaction Taxes under Section 2.02(a) if such Transaction Taxes would, in any event, have been imposed or incurred without regard to any action or omission by any member of the RMT Group described in Section 2.02(a) and
Section 4.02 and as determined at such time; provided, however, notwithstanding anything to the contrary contained in this Agreement, Parent shall indemnify, defend and hold harmless Weyerhaeuser and each Weyerhaeuser Subsidiary
from and against any Transaction Taxes resulting from or arising out of a Parent Section 355(e) Event, except for any such event that would not have been so taxable but for Weyerhaeuser’s breach of Section 4.01(a). 

(d) Weyerhaeuser shall indemnify, defend and hold harmless each RMT Group member from and against any Transaction Taxes with respect to which
neither party is liable under Section 2.02(a) or 2.02(b) above. 
 (e) The party liable for any Transaction Taxes shall be entitled to
any Refund of such Transaction Taxes, and, if another party or any of its Subsidiaries receives (or realizes) any such Refund, it shall remit, or cause to be remitted, the amount of such Refund net of any Taxes incurred by such party or any of its
Subsidiaries in connection with the Refund, within 30 days, to the party entitled to it under this Agreement. 
 (f) Notwithstanding
anything to the contrary contained in this Agreement, Weyerhaeuser shall be solely responsible for, and shall indemnify, defend and hold harmless Parent and the WRECO Group from and against, any Taxes arising as a result of the Transactions from
(i) gain recognized under Treasury Regulation Section 1.1502-19(b) in connection with an excess loss account with respect to the WRECO Capital Stock or the capital stock of any Subsidiary of WRECO, in each case at the time of the WRECO
Spin, (ii) net deferred gains taken into account under Treasury Regulation Section 1.1502-13(d) associated with deferred intercompany transactions between a WRECO Group member and a Weyerhaeuser Group member, (iii) any gain recognized
under Section 361(b) of the Code as a result of a distribution from WRECO to WNR prior to the WRECO Spin, and (iv) any gains described in clauses (i) through (iii) that are imposed under similar state and local Tax Law. 

SECTION 2.03. Transfer Taxes. Transfer Taxes are considered WRECO Group Taxes and the RMT Group shall be liable for any such Taxes. The
parties shall cooperate in 

  
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good faith to minimize the amount of any Transfer Taxes and obtain any Refunds therefor. If Weyerhaeuser or any Weyerhaeuser Subsidiary receives a Refund of any Transfer Taxes, Weyerhaeuser shall
remit, or cause to be remitted, within 30 days, the Refund to the RMT Group net of Taxes incurred by Weyerhaeuser and the Weyerhaeuser Subsidiaries in connection with the Refund. 

SECTION 2.04. Entitlement to Tax Attributes. (a) Notwithstanding anything to the contrary in this Agreement or in the Tax
Allocation Agreement between WNR and WRECO, Weyerhaeuser and the Weyerhaeuser Subsidiaries shall be entitled to any Tax deduction or credit, as the case may be, of the WRECO Group (or any member thereof) relating to (i) the exercise of
compensatory stock options issued (in amounts consistent with past custom and practice) on or prior to December 31, 2013, with respect to Weyerhaeuser Common Shares and (ii) any Weyerhaeuser Tax Attributes (the items described in clauses
(i) and (ii), collectively, the “Weyerhaeuser Tax Assets”). Weyerhaeuser shall, and shall cause each Weyerhaeuser Subsidiary to, to the extent permitted by Law, claim any Tax deduction or credit described in this
Section 2.04(a) on a Tax Return that includes as Weyerhaeuser Group member. In connection therewith, in the event that the RMT Group (or any member thereof) actually utilizes any Weyerhaeuser Tax Asset to reduce its Tax liability (determined by
treating any Weyerhaeuser Tax Asset that is a deduction as the last item of deduction claimed on a Tax Return of the RMT Group), Parent shall make a payment to WNR in an amount equal to the overall net reduction in Tax liability realized as a result
of utilizing the relevant Weyerhaeuser Tax Asset, taking into account the net effect of all federal, state and local Taxes. Any such payment shall be made within 30 days after the RMT Group (or any member thereof), as the case may be, realizes such
reduction in Tax liability by way of a Refund or otherwise. To the extent any Weyerhaeuser Tax Assets are subsequently increased for any reason, Parent shall pay WNR for the benefit of any such increase in a manner consistent with this provision. To
the extent that, following a Final Determination, the RMT Group (or any member thereof) is unable to utilize a Weyerhaeuser Tax Asset (or portion thereof) to reduce its Tax liability, then Weyerhaeuser shall cause WNR to repay to Parent any amount
previously paid to WNR with respect to such Weyerhaeuser Tax Asset (or portion thereof), plus interest (at the rate determined under applicable Tax Law) from the date of payment to WNR through the date of WNR’s repayment. 

(b) Weyerhaeuser and WNR shall in good faith allocate tax attributes arising in the Pre-Distribution Period between the Weyerhaeuser Group and
the RMT Group in accordance with the Code and Treasury Regulations, including Treasury Regulation Section 1.1502-21, 1.1502-21T, 1.1502-22, 1.1502-79, 1.1502-95(c), and Proposed Regulations Section 1.1502-55(h) (and any applicable state,
local and foreign Laws); provided, that earnings and profits shall be allocated, pursuant to Treasury Regulation Section 1.1502-33(e)(3), in accordance with Section 312(h) of the Code and Treasury Regulation
Section 1.312-10(a). 
 SECTION 2.05. Transfer of WRI and the Coyote Springs Excluded Assets. To the extent losses associated
with WRI and the Coyote Springs Excluded Assets are allowed as a result of the Distribution, the parties agree that any Weyerhaeuser Tax Attributes arising from such losses will be properly recognized while WRECO is a member of the WNR consolidated
group under Treasury Regulation Section 1.1502-76(b)(1)(ii), and shall report the losses consistent herewith. Notwithstanding anything to the contrary in this Agreement, Weyerhaeuser shall be responsible for any Transfer Taxes attributable to
the transfer of WRI and the Coyote Springs Excluded Assets. 

  
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 SECTION 2.06. Additional Costs. Each party shall be entitled to indemnification for
Additional Costs related to any indemnity payment under this Agreement. 
 ARTICLE III 

Tax Return Filing and Payment Obligations 

SECTION 3.01. Tax Return Preparation and Filing. (a) From and after the Closing Date, Weyerhaeuser shall (i) prepare and
file, or cause to be prepared and filed, all Joint Returns, (ii) subject to Section 3.01(d), prepare and file all WRECO Separate Returns and any related documents or statements required (or permitted) to be filed by any WRECO Group member
for any taxable period ending on or prior to the date of the Transaction Agreement and (iii) pay, or cause to be paid, all Taxes shown to be due and payable on such Tax Returns. Parent shall pay Weyerhaeuser for any Taxes shown as due on any
Tax Return filed under this Section 3.01(a) for which it has an indemnity obligation under Section 2.01(b) at least two days prior to the filing deadline for Tax Return (including any applicable extensions). 

(b) From and after the Closing Date, Parent shall (i) subject to Section 3.01(d), prepare and file, or cause to be prepared and
filed, all WRECO Separate Returns for any Straddle Period, (ii) prepare and file, or cause to be prepared and filed, all WRECO Separate Returns and any related documents or statements required (or permitted) to be filed by any WRECO Group
member for any Post-Distribution Period, (iii) prepare and file, or cause to be prepared and filed, all Transfer Tax Returns and (iv) pay, or cause to be paid, all Taxes shown to be due and payable on the Tax Returns described in clauses
(i), (ii) and (iii). Weyerhaeuser shall pay Parent for any Taxes shown as due on any Tax Return filed under this Section 3.01(b) for which it has an indemnity obligation under Section 2.01(a) at least two days prior to the filing
deadline for Tax Return (including any applicable extensions). 
 (c) Except as provided in Section 3.02 and with respect to Tax
Returns subject to Section 3.01(d), the party required to prepare a return pursuant to Section 3.01(a) or Section 3.01(b) shall determine, with respect to such return: (i) the manner in which such Tax Return shall be prepared and
filed, including the manner in which any item of income, gain, loss, deduction or credit shall be reported thereon and the allocation of items, (ii) whether any extensions of time to file any such Tax Return will be requested or any amended Tax
Return will be filed and (iii) the elections that will be made on any such Tax Return. In the absence of a change in Law or circumstances requiring the contrary, any Joint Return relating to a member of the WRECO Group and any WRECO Separate
Return for a period ending on or before the Distribution Date shall be prepared, where applicable, on a basis consistent with the WRECO Group’s elections, accounting methods, conventions and principles of taxation used for the most recent Tax
periods for which Tax Returns of the WRECO Group involving similar matters have been filed. 
 (d) The party that is required to prepare a
WRECO Separate Return pursuant to Section 3.01(a)(ii) or Section 3.01(b)(i) shall submit to the other party a draft of any such 

  
 11 

 
WRECO Separate Return required to be filed after the Closing Date at least, in the case of income Tax Returns, 30 days prior to the due date (taking into account any applicable extensions) for
filing such Tax Return. The non-preparing party shall be deemed to have agreed to the applicable income Tax Return, as prepared by the preparing party, unless the non-preparing party delivers a Penalty Objection to the preparing party within 10 days
of delivery of such income Tax Return. If the non-preparing party delivers to the preparing party a timely Penalty Objection with respect to income Tax Returns, the parties shall negotiate in good faith to resolve all disputed issues. If the parties
are unable to resolve all disputed issues within the following 10-day period, they shall submit the remaining disputed issues to the Tax Advisor for resolution at least five days prior to the due date for filing the applicable income Tax Return
(including extensions). The preparing party’s return positions with respect to the disputed issues shall be upheld except for any such positions that the Tax Advisor concludes do not satisfy the Applicable Penalty Standard. The non-preparing
party shall be liable for all fees and expenses of the Tax Advisor incurred under this Section 3.01(d); provided, however, that the preparing party shall be liable for all such fees and expenses incurred with respect to any Tax
Return for which the Tax Advisor concludes a preparing party return position did not satisfy the Applicable Penalty Standard. In the case of Tax Returns that are not Income Tax Returns (including Business and Occupations Tax Returns for the State of
Washington) (“Non-Income Tax Returns”) the preparing party will deliver drafts of such Non-Income Tax Returns at least two days prior to the date on which such Non-Income Tax Returns are required to be filed. 

(e) Parent shall not cause or permit any WRECO Group member to file any amended Tax Return with respect to a Joint Return or a WRECO Separate
Return for any Pre-Transaction Agreement Period. 
 (f) Except as required by any Transaction Document, Parent shall not cause or permit any
WRECO Group member to take any action on the Closing Date other than in the ordinary course of business, including the sale of any assets, distribution of any dividend or making of any Tax election. 

SECTION 3.02. Treatment of Transactions. The parties shall report the Transactions for all Tax purposes in a manner consistent with the
Tax Opinion, unless, and then only to the extent, an alternative position is required pursuant to a Final Determination. Except in the case of a WRECO Separate Return, a Transfer Tax Return and a Tax Return of the RMT Group, Weyerhaeuser shall
determine the Tax reporting of any issue relating to the Transactions that is not covered by the Tax Opinion. 
 ARTICLE IV 

Tax-Free Treatment of Distribution and Related Transaction 

SECTION 4.01. Representations. (a) Weyerhaeuser represents and warrants to Parent that, as of the Closing Date,
(i) Weyerhaeuser knows of no facts that could cause any Transaction to fail to qualify for Intended Tax Treatment, (ii) Weyerhaeuser has no plan or intention to take any action inconsistent with the Weyerhaeuser Representation Letter or
any covenant of Weyerhaeuser set forth this Agreement and (iii) no pre-Distribution acquisition or 

  
 12 

 
sale of Weyerhaeuser Common Shares by Weyerhaeuser or any Weyerhaeuser Subsidiary will be part of a plan (or series of related transactions), within the meaning of Section 355(e)(2)(A)(ii)
of the Code and Treasury Regulation Section 1.355-7(b), that includes the Distribution. 
 (b) Parent represents and warrants to
Weyerhaeuser that, as of the Closing Date, (i) Parent knows of no facts that could cause any Transaction to fail to qualify for Intended Tax Treatment and (ii) Parent has no plan or intention to take any action inconsistent with the Parent
Representation Letter or any covenant of the RMT Group member set forth in this Agreement. Parent further represents and warrants that, immediately before the Effective Time, the amount of shares of Parent Capital Stock treated as outstanding for
purposes of Section 355(e) of the Code will not exceed 33,000,000 shares. Any equity-based compensation awards in respect of Parent Capital Stock outstanding immediately before the Effective Time shall be treated as vested or exercised, as the
case may be, and the resulting Parent Capital Stock shall be treated as outstanding stock for purposes of the calculation in the immediately preceding sentence. 

SECTION 4.02. Covenants. (a) During the Restricted Period, (i) Weyerhaeuser shall not, and shall not permit any Weyerhaeuser
Subsidiary (or any officers or directors acting on behalf of Weyerhaeuser or any Weyerhaeuser Subsidiary, or any Person acting with the implicit or explicit permission of any such officers or directors) to, take or fail to take any action if such
action (or the failure to take such action) would (A) be inconsistent with any covenant, representation or statement made by Weyerhaeuser in the Weyerhaeuser Representation Letter or in this Agreement or (B) prevent, or be reasonably
likely to prevent, any Transaction from qualifying for Intended Tax Treatment, and (ii) Parent shall not, and shall not permit any RMT Group member (or any officers or directors acting on behalf of any RMT Group member, or any Person acting
with the implicit or explicit permission of any such officers or directors) to, take or fail to take any action if such action (or the failure to take such action) would (A) be inconsistent with any covenant, representation or statement made by
Parent in the Parent Representation Letter or in this Agreement or (B) prevent, or be reasonably likely to prevent, any Transaction from qualifying for Intended Tax Treatment. 

(b) Without limiting the generality of Section 4.02(a), during the Restricted Period, subject to Section 4.02(d), Parent shall not,
and shall not permit any RMT Group member (or any officers or directors acting on behalf of any RMT Group member, or any Person acting with the implicit or explicit permission of any such officers or directors) to: 

(i) enter into any agreement, understanding, arrangement or substantial negotiations, as defined in Treasury Regulation
Section 1.355-7(h), pursuant to which any Person would (directly or indirectly) acquire, or have the right to acquire Parent Capital Stock or WRECO Capital Stock. For these purposes, an acquisition of Parent Capital Stock or WRECO Capital
Stock, as applicable, shall include, without limitation, any recapitalization, repurchase or redemption of Parent Capital Stock or WRECO Capital Stock, any issuance of Parent Capital Stock or WRECO Capital Stock (including any nonvoting stock) or an
instrument exchangeable or convertible into Parent Capital Stock or WRECO Capital Stock (whether pursuant to an exercise of stock options, as a result of a capital contribution to Parent or WRECO, as applicable, or otherwise), any option grant, any
amendment to the certificate or articles of incorporation (or other 

  
 13 

 
organizational document) of Parent or WRECO, as applicable, or any other action (whether effected through a shareholder vote or otherwise) affecting the voting rights of Parent Capital Stock or
WRECO Capital Stock (including through the conversion of any Parent Capital Stock or WRECO Capital Stock into another class of capital stock); provided, however, that (A) WRECO shall be permitted to issue WRECO Capital Stock to
Parent; (B) Parent shall be permitted to issue options, restricted stock, and deferred stock units in respect of a number of shares of Parent Capital Stock and that does not exceed the Option Amount pursuant to an employee stock purchase
agreement, equity compensation agreement, retirement plan or other compensation arrangement; (C) vesting of any restricted stock or deferred stock units that a Safe Harbor VIII Person is entitled to receive (or would be entitled to receive upon
achieving the relevant hurdles in existence) as of the Effective Time shall not be treated as an acquisition of Parent Capital Stock for purposes of this Section 4.02(b)(i); (D) Parent shall be permitted to issue Parent Capital Stock to a
Safe Harbor VIII Person pursuant to the exercise of an option to acquire Parent Capital Stock that was granted at or prior to the Effective Time; (E) with respect to any issuances of options, restricted stock or deferred stock units in respect
of shares of Parent Capital Stock in excess of the Option Amount, after Weyerhaeuser’s receipt and acceptance of, and solely to the extent consistent with, an Equity Compensation Opinion delivered to Weyerhaeuser by Parent, until the earlier of
(1) any amendment of the Covered Compensation Arrangement and (2) a change in applicable Tax Law, Parent or WRECO, as applicable, may issue options, restricted stock and deferred stock units in respect of Parent Capital Stock and WRECO
Common Stock pursuant to an employee stock purchase agreement, equity compensation agreement, retirement plan or other compensation arrangement that is described in the Equity Compensation Opinion (such arrangement, the “Covered Compensation
Arrangement”), and Parent or WRECO, as applicable, may issue the shares of Parent Capital Stock or WRECO Capital Stock underlying such options, restricted stock and/or deferred stock units upon the exercise or vesting thereof, and any such
shares shall not be treated as an acquisition of Parent Capital Stock or WRECO Capital Stock, as applicable; (F) subject to compliance with Section 4.02(d), Parent may redeem, retire, repurchase or otherwise acquire Parent Capital Stock in
a manner that complies with the requirements of Revenue Procedure 96-30 (as in effect prior to the release of Revenue Procedure 2003-48); and (G) Parent may adopt a shareholder rights plan (and issue Parent Capital Stock in accordance
therewith) that is described in or is similar to the shareholder rights plan described in IRS Revenue Ruling 90-11 (for this purpose a shareholder rights plan will be considered similar to the plan described in IRS Revenue Ruling 90-11 only if the
principal purpose for the adoption of the plan providing for such rights is to establish a mechanism by which a publicly held corporation can, in the future, provide shareholders with rights to purchase stock at substantially less than fair market
value as a means of responding to unsolicited offers to acquire the corporation); 
 (ii) merge or consolidate Parent or
WRECO with any other Person, or liquidate or partially liquidate Parent or WRECO; 
 (iii) cause or permit Parent or WRECO to
be treated as other than a corporation for U.S. federal income Tax purposes; or 

  
 14 

 (iv) cause or permit WRECO to cease to engage in the Active Trade or Business, or
engage in any transaction that could result in WRECO ceasing to be a company whose separate affiliated group, as defined in Section 355(b)(3)(B) of the Code, is so engaged; provided, however, that, after the Merger, the WRECO
Group shall, with respect to transactions not in the ordinary course of business, be permitted to sell, transfer or otherwise dispose of assets with an aggregate value up to 331/3% of its assets
(determined based on the gross fair market value of the WRECO Group’s assets immediately before the Closing Date) in the aggregate; provided, however, that nothing herein shall prevent the WRECO Group from selling or disposing of
assets in the ordinary course of business and any such sales shall be disregarded for purpose of applying the limitation set forth in this Section 4.02(b)(iv). 

(c) To the extent that as a result of a subsequent amendment to the Code or the Treasury Regulations, any action or a failure to take any
action by Weyerhaeuser and the Weyerhaeuser Subsidiaries or an RMT Group member could affect any Transaction’s qualification for the Intended Tax Treatment, then the covenants contained in Section 4.02(a)(i)(B) and in
Section 4.02(a)(ii)(B) shall automatically be deemed to incorporate by reference such actions and the failure to take such actions, and the RMT Group shall comply with the requirements of the relevant amendment through the end of the Restricted
Period; provided, however, that no such action or failure to take any such action before the date the relevant amendment is enacted shall constitute a breach of such Sections to the extent such actions or failure to take such actions
would not have otherwise constituted a breach of such Sections before such date. 
 (d) Parent shall not, and shall not permit any RMT Group
member to, take any action prohibited by Sections 4.02(b) and (c), unless (i) Weyerhaeuser receives prior written notice describing the proposed action in reasonable detail and (ii) Parent delivers to Weyerhaeuser (A) an Unqualified
Opinion and Weyerhaeuser, in its reasonable discretion, which discretion shall be exercised in good faith solely to preserve the Intended Tax Treatment, provides its written consent permitting the proposed action, or (B) a Ruling.
Weyerhaeuser’s obligation to cooperate in connection with Parent’s delivery of an Unqualified Opinion or Ruling is as expressly set forth in Section 5.05(b) below. The right of Weyerhaeuser and the Weyerhaeuser Subsidiaries to
indemnification for Transaction Taxes shall be determined without regard to whether the RMT Group satisfies any or all of the requirements of this Section 4.02(d). 

ARTICLE V 
 Tax Contests;
Indemnification; Cooperation 
 SECTION 5.01. Notice of Tax Contests. If any party (the “Indemnitee”) receives
written notice of the commencement of any Tax Contest for which indemnity may be sought under this Agreement, and such Indemnitee intends to seek indemnity pursuant to this Agreement, the Indemnitee shall promptly provide the other party (the
“Indemnifying Party”) with written notice of such Tax Contest, and thereafter shall promptly forward or make available to the Indemnifying Parties copies of all notices and communications with a Taxing Authority solely to the extent
relating to such Tax Contest. Failure of the Indemnitee to give such notice will not relieve the Indemnifying Parties from liability on account of this indemnification, except if and to the extent that the Indemnifying Party is materially prejudiced
thereby. 

  
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 SECTION 5.02. Control of Tax Contests. (a) Except as provided in
Section 5.02(b), Weyerhaeuser shall have the right to (i) contest, compromise or settle any adjustment or deficiency proposed or asserted with respect to any Tax liability of a Weyerhaeuser Group member, any Tax liability reflected on a
Joint Return, or any tax liability reflected on a WRECO Separate Return for a Pre-Transaction Agreement Period, and (ii) file, prosecute, compromise or settle any Adjustment Request (and determine the manner in which any Refund shall be
received) with respect to any such Taxes for any such period. If any Tax Contest described in the preceding sentence relates to WRECO Group Taxes or Transaction Taxes with respect to which Parent could be liable under Section 2.02(a) (either an
“RMT Issue”), (A) Weyerhaeuser shall (1) keep Parent fully informed, in all material respects, regarding the progress of the prosecution or defense of such Tax Contest, (2) promptly provide Parent with copies of any
correspondence relating to Taxes received from any Taxing Authority in connection with such Tax Contest and (3) provide Parent with drafts of any correspondence relating to Taxes from Weyerhaeuser to any Taxing Authority in connection with such
Tax Contest and provide Parent with a reasonable opportunity to comment on such correspondence and (B) if Parent acknowledges its liability in writing for all the Taxes that would be owed to a Taxing Authority in the event of an adverse
determination with respect to the RMT Issue, Weyerhaeuser shall not settle or compromise such RMT Issue without Parent’s written consent, which consent may not be unreasonably withheld, delayed or conditioned. If Parent withholds its consent to
a settlement or compromise described in clause (B) above, Parent shall be liable for any Taxes resulting from a Final Determination to the extent the basis for the Final Determination is such that the RMT Group would have liability for the
applicable Taxes under this Agreement or if the Final Determination fails to clearly articulate the basis for liability such that it is not reasonably ascertainable which party would be liable for the Taxes under this Agreement. Weyerhaeuser and
Parent shall use their reasonable best efforts to ensure that the Final Determination clearly provides the basis for such determination. 

(b) Parent shall have the right to (i) contest, compromise or settle any adjustment or deficiency proposed or asserted with respect to
any Tax liability reflected on any WRECO Separate Return for a period ending after the date of the Transaction Agreement (including any Straddle Period) and any Tax liability reflected on a Transfer Tax Return, and (ii) file, prosecute,
compromise or settle any Adjustment Request (and determine the manner in which any Refund shall be received) with respect to any Tax reflected on such Tax Returns for such period. If any Tax Contest described in the preceding sentence relates to
Weyerhaeuser Group Taxes or Transaction Taxes with respect to which Weyerhaeuser could be liable under Section 2.02(b) (either, a “Weyerhaeuser Issue”), (A) Parent shall (1) keep Weyerhaeuser fully informed, in all
material respects, regarding the progress of the prosecution or defense of such Tax Contest, (2) promptly provide Weyerhaeuser with copies of any correspondence relating to Taxes received from any Taxing Authority in connection with such Tax
Contest and (3) provide Weyerhaeuser with drafts of any correspondence relating to Taxes from Parent to any Taxing Authority in connection with such Tax Contest and provide Weyerhaeuser with a reasonable opportunity to comment on such
correspondence and (B) if Weyerhaeuser acknowledges its liability in writing for all the Taxes that would be owed to a Taxing Authority in the event of an 

  
 16 

 
adverse determination with respect to the Weyerhaeuser Issue, Parent shall not settle or compromise such Weyerhaeuser Issue without Weyerhaeuser’s written consent, which consent may not be
unreasonably withheld, delayed or conditioned. If Weyerhaeuser withholds its consent to a settlement or compromise described in clause (B) above, Weyerhaeuser shall be liable for any Taxes resulting from a Final Determination to the extent the
basis for the Final Determination is such that the Weyerhaeuser Group would have liability for the applicable Taxes under this Agreement or if the Final Determination fails to clearly articulate the basis for liability such that it is not reasonably
ascertainable which party would be liable for the Taxes under this Agreement. Weyerhaeuser and Parent shall use reasonable best efforts to ensure that the Final Determination clearly provides the basis for such determination. 

SECTION 5.03. Indemnification Payments. (a) The Indemnitee shall notify the Indemnifying Party promptly in writing of its
discovery of any matter that does not involve a Tax Contest giving rise to the claim of indemnity pursuant to this Agreement. The failure to so notify the Indemnifying Party shall not relieve the Indemnifying Party from liability on account of this
indemnification, except if and to the extent that the Indemnifying Party is materially prejudiced thereby. The Indemnifying Party shall have 10 days from receipt of any such notice to give notice of a dispute of the claim to the Indemnitee. The
Indemnitee shall reasonably cooperate and assist the Indemnifying Party in determining the validity of any claim for indemnity by the Indemnified Party and in otherwise resolving such matters. Unless the Indemnifying Party gives notice of a dispute
of the claim within such 10-day period, the Indemnifying Party shall make the claimed payment to the Indemnitee within 10 days after receiving notice of (i) the Indemnitee’s payment of a Tax for which the Indemnifying Party is liable under
this Agreement or (ii) a Final Determination which results in the Indemnifying Party becoming obligated to make a payment to the Indemnitee under this Agreement. 

(b) Parent shall not be required to make any payments under this Agreement to Weyerhaeuser or any Weyerhaeuser Subsidiary until the aggregate
amount of such payments due (but for this Section 5.03(b)) exceeds the net amount paid by WRECO to WNR after the date of the Transaction Agreement in respect of (without duplication), (i) WRECO Group Taxes or (ii) payables that arise
after the date of the Transaction Agreement pursuant to the Tax Allocation Agreement, dated January 1, 2010, between WNR and WRECO, and thereafter Parent shall only be required to make payments to the extent of such excess. Weyerhaeuser will
provide Parent with evidence of the amounts described in clauses (i) and (ii) above, in a form mutually agreed upon by the parties. For purposes of calculating the net amount paid by WRECO to WNR in the previous sentence, any increase
after the date of the Transaction Agreement in the amount of Intercompany Debt in respect of Taxes or payables described in clause (i) or (ii) above shall be taken into account as a payment from WRECO to WNR. 

SECTION 5.04. Treatment of Indemnity Payments. In the absence of a Final Determination to the contrary, any amount payable with respect
to any Tax under this Agreement shall be treated as occurring immediately prior to the WRECO Spin, as an intercompany distribution or a contribution to capital, as the case may be. 

SECTION 5.05. Cooperation. (a) Each of Weyerhaeuser and Parent shall, and shall cause its Subsidiaries to, subject to
Section 5.05(b) below, cooperate fully with all 

  
 17 

 
reasonable requests from the other parties in connection with the preparation and filing of Tax Returns and Adjustment Requests, the resolution of Tax Contests and any other matters covered
herein. If any parties fail to comply with any of their obligations set forth in this Section 5.06(a), and such failure results in the imposition of additional Taxes, the nonperforming parties shall be liable for such additional Taxes. 

(b) In connection with the foregoing, Weyerhaeuser shall, at Parent’s sole expense, reasonably cooperate with Parent, upon its written
request, in connection with obtaining (i) a Ruling or (ii) an Unqualified Opinion. Such cooperation shall include Weyerhaeuser providing any information, submissions, representations and covenants reasonably requested by a recipient that
has previously executed with Weyerhaeuser an appropriate confidentiality agreement, in form and substance satisfactory to Weyerhaeuser and that permits reliance by Weyerhaeuser. This Section 5.05 shall not require Weyerhaeuser to take any
action (including the provision of information, submissions, representations or covenants) that could reasonably be expected to affect Weyerhaeuser’s indemnity obligation for Taxes under this Agreement, decrease in any respect Parent’s
indemnity obligation for Taxes under this Agreement, or cause Weyerhaeuser or any Weyerhaeuser Subsidiary to have any liability to any third party, including any liability for increased Taxes. Parent acknowledges and agrees that, in the case of a
Ruling, Parent shall immediately notify Weyerhaeuser if the IRS seeks any non-publicly available information regarding Weyerhaeuser or any of its Affiliates, and Parent shall not provide any such information to the IRS without Weyerhaeuser’s
written consent, which consent can be withheld or provided in Weyerhaeuser’s sole and absolute discretion. Parent shall promptly withdraw any such Ruling request (and immediately notify Weyerhaeuser in writing of such withdrawal) if
Weyerhaeuser does not affirmatively consent to provide the requested information within 48 hours of Parent’s notification to Weyerhaeuser regarding the request therefor. Parent shall provide to Weyerhaeuser, for its review and approval prior to
filing, a copy of any Ruling request and any other submissions made to the IRS in connection therewith, and Parent shall provide to Weyerhaeuser a copy of any Ruling obtained in connection with such request. 

SECTION 5.06. Tax Records. Each of Weyerhaeuser and Parent shall, and shall cause its Subsidiaries to, retain all Tax Records in its
possession relating to or relevant to any Tax matter for which any party may have an indemnity obligation hereunder until expiration of the statute of limitations of the Tax periods to which such Tax Records relate (giving effect to any valid
extensions made known to the Purchaser) plus six months. 
 SECTION 5.07. Confidentiality. Any information or documents provided
under this Agreement shall be kept confidential by the recipient parties, except as may otherwise be necessary in connection with the filing of any Tax Return or the resolution of any Tax Contest. In addition, if Weyerhaeuser, WRECO or Parent
determines that providing such information could be commercially detrimental, violate any Law or agreement or waive any privilege, the parties shall use their reasonable best efforts to permit compliance with the obligations under this Agreement in
a manner that avoids any such harm or consequence. 

  
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 ARTICLE VI 

Dispute Resolution 

SECTION 6.01 Tax Disputes. The parties hereto shall negotiate in good faith to resolve any dispute arising in connection with this
Agreement within 30 days of the date on which any such dispute arises. Upon written notice by a party after such 30-day period, the matter will be referred to a U.S. tax counsel or other tax advisor of recognized national standing (the “Tax
Advisor”). Weyerhaeuser and Parent shall negotiate in good faith to jointly select a Tax Advisor within five days of such written notice. If Weyerhaeuser and Parent do not agree on the selection of the Tax Advisor within such five-day
period, the Tax Advisor shall be selected by Weyerhaeuser’s and Parent’s respective U.S. tax counsel or other advisors of recognized national standing within the following 10-day period. The Tax Advisor may, in its discretion, obtain the
services of any third party necessary to assist it in resolving the dispute. The Tax Advisor shall furnish written notice to the parties of its resolution of the dispute as soon as practicable, but in any event no later than 90 days after acceptance
of the matter for resolution. Any such resolution by the Tax Advisor shall be binding on the parties, and the parties shall take, or cause to be taken, any action necessary to implement such resolution. All fees and expenses of the Tax Advisor shall
be shared equally by Weyerhaeuser and Parent. If any dispute regarding the preparation of a Tax Return is not resolved before the due date for filing such return, the return shall be filed in the manner deemed correct by the party responsible for
filing the return without prejudice to the rights and obligations of the parties hereunder, provided that the preparing party shall file an amended Tax Return, within 10 days after the completion of the process set forth in this Section 6.01,
reflecting any changes made in connection with such process. 
 ARTICLE VII 

General Provisions 

SECTION 7.01. Notices. All notices, requests, claims, demands, waivers and other communications under this Agreement shall be in
writing and shall be addressed to a party at the following address for such party: 
 (i) if to Weyerhaeuser, to: 

Weyerhaeuser Company 

33663 Weyerhaeuser Way South 

Federal Way, WA 98003 

Attention: Sandy McDade 

Facsimile: (253) 928-2185 

Email: sandy.mcdade@weyerhaeuser.com 

  
 19 

 with a copy to: 

Cravath, Swaine & Moore LLP 

Worldwide Plaza 

825 Eighth Avenue 

New York, NY 10019 

Attention: Richard Hall and Erik Tavzel 

Facsimile: (212) 474-3700 

Email: rhall@cravath.com and etavzel@cravath.com 

(ii) if to Parent or WRECO, to: 

TRI Pointe Homes, Inc. 

19520 Jamboree Road, Suite 200 

Irvine, CA 92612 

Attention: Doug Bauer 

Facsimile: (949) 478-8601 

Email: Doug.Bauer@TriPointeHomes.com 

with a copy to: 

Gibson, Dunn & Crutcher LLP 

3161 Michelson Drive 

Irvine, CA 92612 

Attention: Michael Flynn 

Facsimile: (949) 475-4774 

Email: mflynn@gibsondunn.com 
 or
to such other address(es) as shall be furnished in writing by any such party to the other parties hereto in accordance with the provisions of this Section 7.01. 

SECTION 7.02. Severability. If any term or other provision of this Agreement is invalid, illegal or incapable of being enforced by any
rule or Law or public policy, all other conditions and provisions of this Agreement shall nevertheless remain in full force and effect so long as the economic or legal substance of the transactions contemplated hereby is not affected in any manner
materially adverse to any party. Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced, the parties hereto shall negotiate in good faith to modify this Agreement so as to effect the original
intent of the parties as closely as possible to the end that the transactions contemplated hereby are fulfilled to the extent possible. 

SECTION 7.03. Counterparts. This Agreement may be executed in one or more counterparts, each of which shall be deemed an original and
all of which shall be considered one and the same agreement, and shall become effective when one or more counterparts have been signed by each of the parties hereto and delivered to the other parties. 

SECTION 7.04. Entire Agreement; No Third Party Beneficiaries. This Agreement, together with the other Transaction Documents,
constitutes the entire agreement, and 

  
 20 

 
supersedes all prior agreements and understandings, both written and oral, among the parties hereto with respect to the subject matter hereof and is not intended to confer upon any Person other
than the parties hereto any rights or remedies. 
 SECTION 7.05. Governing Law. This Agreement shall be governed by, and construed in
accordance with, the Laws of the State of Delaware, regardless of the Laws that might otherwise govern under applicable principles of conflicts of laws thereof. 

SECTION 7.06. Assignment. Neither this Agreement nor any of the rights, interests or obligations under this Agreement shall be
assigned, in whole or in part, by operation of Law or otherwise by any of the parties hereto without the prior written consent of the other parties. Any purported assignment without such consent shall be void. Subject to the preceding sentences,
this Agreement will be binding upon, inure to the benefit of, and be enforceable by, the parties hereto and their respective successors and assigns. 

SECTION 7.07. Amendment; Waiver. This Agreement may be amended by the parties hereto at any time. Any amendment to this Agreement shall
be valid only if set forth in an instrument in writing signed on behalf of each of the parties hereto. The parties hereto may, to the extent permitted under applicable Law, waive compliance with any of the terms or conditions contained in this
Agreement. Any agreement on the part of a party to any such waiver shall be valid only if set forth in an instrument in writing signed on behalf of such party. The failure of any party to this Agreement to assert any of its rights hereunder or
otherwise shall not constitute a waiver of such rights. 
 SECTION 7.08. Termination. This Agreement shall automatically terminate,
without further action by any party hereto, upon the termination of the Transaction Agreement pursuant to Section 11.01 thereof. In the event of any such termination of this Agreement, this Agreement shall forthwith become void and have no
effect, without any liability or obligation on the part of Weyerhaeuser, WRECO and Parent and Merger Sub or any other Person, other than Section 5.07 and this Article VII, which provisions shall survive such termination. 

SECTION 7.09. Survival. All Sections of this Agreement shall be unconditional and absolute and shall remain in effect without
limitation as to time (except to the extent any Sections expressly provide for an earlier date, in which case, as of such date). 

[Signature Page Follows] 

  
 21 

 IN WITNESS WHEREOF, the parties have duly executed this Agreement, all as of the date first
written above. 
  

			
	WEYERHAEUSER COMPANY,
		
	By	 	
	 	 	/s/ Jeffrey W. Nitta
	Name:	 	Jeffrey W. Nitta
	Title:	 	Vice President and Treasurer
	
	WEYERHAEUSER REAL ESTATE COMPANY,
		
	By	 	
	 	 	/s/ Jeffrey W. Nitta
	Name:	 	Jeffrey W. Nitta
	Title:	 	Vice President and Treasurer
	
	TRI POINTE HOMES, INC.,
		
	By	 	
	 	 	/s/ Douglas F. Bauer
	Name:	 	Douglas F. Bauer
	Title:	 	Chief Executive Officer

 [Signature Page to Tax Sharing Agreement]

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