Document:

EX-10.28

 Exhibit 10.28 

FIRST AMENDMENT TO LEASE AGREEMENT 

This First Amendment to Lease Agreement (this “Amendment”) is dated as of June 1, 2007, by and between U.S. Bank, N.A. (as
successor-in-interest to State Street Bank and Trust Company of Connecticut, National Association), as owner trustee of ZSF/Dallas Tower Trust, a Delaware grantor trust
(as trustee only, and not individually) (“Lessor”), and TXU Properties Company, a Texas corporation (“Lessee”). 

W I T N E S S E T H : 

WHEREAS, by that certain Lease Agreement, dated as of February 14, 2002 (the “Lease”) between Lessor and Lessee, Lessor demised
and leased to Lessee and Lessee rented and leased from Lessor the Property (as defined in the Lease); and 
 WHEREAS, Lessor and Lessee
desire to make certain modifications to the Lease subject to the terms hereof. 
 NOW, THEREFORE, in consideration of the sum of Ten Dollars
($10.00) and other good and valuable consideration, the receipt and sufficiency of which are hereby mutually acknowledged, Lessor and Lessee hereby agree as follows: 

1. Defined Terms. Capitalized terms used but not defined in this Amendment shall have the same meanings as are ascribed to them in the
Lease, unless otherwise noted. 
 2. Modifications to Lease. The Lease is hereby amended, modified and supplemented as follows: 

(a) Section 7.1 is hereby modified by deleting the words “Guarantor (or Lessee if there is no Guarantor)”
appearing in line 10 thereof and substituting in lieu thereof the word “Lessee”. 
 (b) Section 8.5(a)
is hereby modified by: (i) deleting the words “(or Guarantor)” appearing in lines 16-17 thereof; and (ii) deleting the words “Guarantor (or Lessee if there is no Guarantor)” appearing
in line 31 thereof and substituting in lieu thereof the word “Lessee”. 
 (c) Section 8.6 is hereby
modified by deleting the words “(or Guarantor)” appearing in line 26 thereof. 
 (d) Section 9.1(b) is
hereby modified by deleting the words “Guarantor (or Lessee if there is no Guarantor)” appearing in line 2 thereof and substituting in lieu thereof the word “Lessee”. 

 (e) Section 11.1 is hereby modified by deleting the terms of the
section in their entirety and substituting in lieu thereof the following: 
 “Assignment by Lessee. So long as no Lease Event of Default has
occurred and is continuing, Lessee may, at Lessee’s sole expense, without the consent of Lessor, assign this Lease for a period that does not extend beyond the Lease Term, to any Affiliate of Lessee that is not, and will at no time be, an
Obligor, provided, however, that any such Affiliate is not (I) a tax-exempt entity (within the meaning of Section 168(h) of the Code) or (II) a debtor or debtor-in-possession in a voluntary or involuntary bankruptcy proceeding at the commencement of the assignment. For purposes hereof, an assignment shall be deemed any merger
or consolidation of Lessee which would violate the provisions of (I) or (II) above. Any assignee shall assume in writing any obligations of Lessee arising from and after the effective date of the assignment, provided,
however, that no such assignment shall become effective until (i) a fully executed copy of an assignment and assumption agreement, reasonably acceptable to Lessor, Servicer, Indenture Trustee and Lessee, shall have been delivered to Lessor,
the Servicer and the Indenture Trustee, and (ii) such assignee shall have executed such instruments and other documents and provided such further assurances as the Indenture Trustee shall reasonably request to ensure that such assignment is
subject to the Assignment of Lease, the other Debt Documents and this Lease and is enforceable. Notwithstanding any such assignment, Lessee shall not be released from its primary liability hereunder and shall continue to be obligated for all of its
obligations in this Lease, which obligations shall continue in full effect as obligations of a principal and not of a guarantor or surety, as though no assignment had been made. Lessee will have the right, subsequent to any assignment (a) to
receive a duplicate copy of each notice of default sent by Lessor to Lessee or any assignee (but such notice shall be effective as against the Lessee, as well as any subsequent assignees, even if a copy has not been delivered to such requesting
assignee), and (b) to cure any default by Lessee or other assignee under the Lease within the cure period provided for hereunder. Lessee’s liability hereunder shall continue notwithstanding the rejection of this Lease by an assignee or any
sublease of this Lease pursuant to Section 365 of Title 11 of the United States Code, any other provision of the Bankruptcy Code, or any similar law relating to bankruptcy, insolvency, reorganization or the rights of creditors, which
arises subsequent to such assignment. In the event Lessee assigns this Lease and it shall thereafter be rejected in a bankruptcy or similar proceeding, a new lease identical to this Lease shall be reinstituted as between Lessor and Lessee without
further act of either party, provided Lessor shall not be obligated to deliver to Lessee possession of the Property free of any tenancy created or caused by Lessee or any entity holding by or through Lessee. Nothing herein shall be construed to
permit Lessee to mortgage, pledge, hypothecate or otherwise collaterally assign in any manner or nature whatsoever Lessee’s interest under this Lease in whole or in part. Lessee shall provide written notice to Lessor, the Servicer and the
Indenture Trustee of any proposed assignment of this Lease at least thirty (30) Business Days prior to the effective date thereof and an executed copy of the approved agreement of assignment and assumption within thirty (30) days after the
execution thereof. To the extent an assignee of this Lease fails to perform on behalf of Lessee the obligations of Lessee hereunder, and Lessee performs such obligations, then Lessee shall be subrogated to the rights of Lessor as against such
assignee in respect of such performance.” 
 (f) Section 12.1 is hereby modified by deleting the word
“Guarantor” appearing in line 67 thereof and substituting in lieu thereof the word “Lessee”. 
 (g)
Article 13 is hereby restated in its entirety as follows: 

  
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 “ARTICLE 13 

LETTER OF CREDIT 
 Section 13.1. Letter of
Credit. Throughout the Base Term and all applicable Renewal Terms, the Lessee shall cause the Applicant to provide a Qualified Letter of Credit satisfying the requirements set forth in this Article 13; provided that in the event of a
draw pursuant to Section 13.3(b), (c), (d), (e), (f) or (g) below, the Lessee shall no longer have an obligation to cause the Applicant to provide a Qualified Letter of Credit. In addition, the Lessee shall cause each Obligor to waive all
direct or indirect rights of reimbursement, subrogation or other claims against the Lessee with respect to such Qualified Letter of Credit. 

Section 13.2. Replacements. The Applicant shall have the right at any time to replace any outstanding Qualified Letter of Credit with another
Qualified Letter of Credit that meets all of the requirements set forth in this Article 13. Each replacement Qualified Letter of Credit shall be accompanied by a certificate executed by Lessee confirming (a) each Obligor has waived all
direct or indirect rights of reimbursement, subrogation or other claims against the Lessee with respect to such replacement Qualified Letter of Credit, (b) Lessee is not an Obligor with respect to such replacement Qualified Letter of Credit,
and (c) such replacement Qualified Letter of Credit is not collateralized with any asset in which the Lessee has an ownership or other interest. 

Section 13.3. Draw Events. With respect to any Qualified Letter of Credit, the Beneficiary shall be permitted thereunder: 

(a) from time to time, if the Lessee fails to make any payment of Base Rent on an applicable Rent Payment Date, to draw upon such Qualified
Letter of Credit an amount equal to or less than the amount of Base Rent that on such Rent Payment Date was due and payable but not paid and that remains unpaid on the date of such drawing; 

(b) if Lessee fails to make a Stipulated Loss Value Payment due and payable on a Stipulated Loss Value Date pursuant to Section 12.1, to
draw upon such Qualified Letter of Credit an amount equal to or less than the Stipulated Loss Value Payment that on such Stipulated Loss Value Date was due and payable but not paid and that remains unpaid on the date of such drawing; 

(c) if any Lease Event of Default has occurred and is continuing, to draw upon such Qualified Letter of Credit an amount equal to the maximum
remaining amount available to be drawn thereunder; 
 (d) if (i) an Obligor makes any general arrangement or assignment for the benefit of
creditors; (ii) an Obligor becomes a “debtor” as defined in 11 U.S.C. § 101 of the Bankruptcy Code or any successor statute thereto (unless, in the case of a petition filed against such Obligor, the same is dismissed within ninety
(90) days or such Obligor ceases to be an “Obligor” within ninety (90) days); (iii) the appointment of a trustee or receiver to take possession of substantially all of the assets of an Obligor where possession is not restored to such
Obligor within ninety (90) days and such Obligor does not cease to be an “Obligor” within ninety (90) days; (iv) the attachment, execution or other judicial seizure of substantially all of the assets of an Obligor where such attachment,
execution or other judicial seizure is not discharged within ninety 

  
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(90) days and such Obligor does not cease to be an “Obligor” within ninety (90) days; (v) an Obligor admits in writing its inability to pay its debts generally as they become due; (vi)
an Obligor files a petition in bankruptcy or a petition to take advantage of any insolvency act; (vii) an Obligor files a petition or answer seeking reorganization or arrangement or other protection under the Federal bankruptcy laws or any other
applicable law or statute of the United States of America or any State thereof; (viii) an Obligor is liquidated or dissolved, or placed under conservatorship or other protection under any applicable federal or state law or begins proceedings toward
such liquidation or dissolution; (ix) any petition is filed by or against an Obligor under Federal bankruptcy laws, or any other proceeding is instituted by or against an Obligor seeking to adjudicate it a bankrupt or insolvent, or seeking
liquidation, reorganization, arrangement, adjustment or composition of it or its debts under any law relating to bankruptcy, insolvency or reorganization or relief of debtors, or seeking the entry of an order for relief or the appointment of a
receiver, trustee, custodian or other similar official for an Obligor, or for any substantial part of the property of an Obligor, and such proceeding is not dismissed within ninety (90) days after institution thereof and such Obligor does not cease
to be an “Obligor” within ninety (90) days after institution thereof; or (x) an Obligor shall take any action to authorize or effect any of the actions set forth above in this subsection (d), to draw to draw upon such Qualified Letter of
Credit an amount equal to the maximum remaining amount available to be drawn thereunder; 
 (e) if (i) an Obligor has any rights of
reimbursement, subrogation or other claims against the Lessee with respect to such Qualified Letter of Credit, (ii) Lessee is an Obligor with respect to such Qualified Letter of Credit, or (iii) such Qualified Letter of Credit is collateralized with
any asset in which the Lessee has an ownership or other interest, to draw upon such Qualified Letter of Credit an amount equal to the maximum remaining amount available to be drawn thereunder; 

(f) if thirty (30) or fewer days remain prior to the current expiry date of such Qualified Letter of Credit, the Issuing Bank has given a
notice of non-extension referred to in the definition of “Qualified Letter of Credit”, and the Beneficiary has not received a replacement Qualified Letter of Credit under Section 13.2, to draw upon such Qualified Letter of Credit an
amount equal to the maximum remaining amount available to be drawn thereunder; and 
 (g) if the Lessee fails to cause the Applicant to
provide a required Qualifying Letter of Credit (as defined in the Master Letter Agreement) by May 15, 2022 in accordance with Section 5(a) of the Master Letter Agreement, and the Beneficiaryhas not received a Qualifying Letter of Credit,
to draw upon such Qualified Letter of Credit an amount equal to or less than the amount of the Qualifying Letter of Credit that was required to be provided pursuant to Section 5(a) of the Master Letter Agreement; 

provided that an authorized representative or officer of the Beneficiary delivers to the Issuing Bank a certificate as to the occurrence of the condition
allowing such draw. 
 Section 13.4. Letter of Credit Proceeds. Upon a draw on a Qualified Letter of Credit by the Beneficiary, the proceeds
shall be deposited and handled as set forth in that certain Master Letter Agreement dated as of even date herewith (the “Master Letter Agreement”). 

  
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 Section 13.5. Lessor Payment Obligation. Notwithstanding any provision in the Master Letter Agreement
to the contrary, the Lessor shall be obligated to pay to the Applicant within ninety (90) days after the termination of this Lease an amount equal to the portion of the LOC Account Excess Amount (as defined in the Master Letter Agreement)
received by the Lessor, if any, that is not required to be used to satisfy the Lessee’s unpaid obligations under this Lease. In no event shall the amount of such payment exceed an amount equal to the LOC Account Excess Amount actually received
by the Lessor. The Lessor hereby covenants and agrees that it will continue to comply with its covenants and agreements set forth in Section 5.01 and Section 5.02 of the Indenture, as in effect on the date hereof, until such time as any
amount due and payable to the Applicant under this Section 13.5 or under Section 4(b)(vi)(B) of the Master Letter Agreement is paid to the Applicant. 

Section 13.6. Quarterly Compliance Certificate. Within thirty (30) days after the end of each calendar quarter in each calendar year during
the Base Term and all applicable Renewal Terms, the Lessee shall deliver to the Lessor, the Indenture Trustee and the Beneficiary a certificate executed by Lessee confirming (a) each Obligor has waived all direct or indirect rights of
reimbursement, subrogation or other claims against the Lessee with respect to any outstanding Qualified Letter of Credit, (b) Lessee is not an Obligor with respect to any such Qualified Letter of Credit, and (c) such Qualified Letter of
Credit is not collateralized with any asset in which the Lessee has an ownership or other interest.” 
 (h)
Section 15.1 is hereby modified by deleting the words “or Guarantor” appearing in line 29 thereof. 

(i) Section 16.1(a) is hereby modified by deleting the terms of the section in their entirety and substituting in
lieu thereof the following: 
 Lessee shall fail to make any Termination Value Payment or Stipulated Loss Value Payment within three
(3) Business Days after the same shall become due; 
 (j) Section 16.1(b) is hereby modified by deleting the
terms of the section in their entirety and substituting in lieu thereof the following: 
 Lessee shall fail to make any payment of Base Rent,
Supplemental Rent or any other payment required to be made under this Lease and such failure shall continue for a period of ten (10) days after written notice thereof from Lessor or the Servicer; 

(k) Section 16.1(c) is hereby modified by: (i) deleting the words “any of Guarantor or” appearing in
line 1 thereof; and (ii) deleting the words “Guarantor or Lessee (as applicable)” appearing in line 7 thereof and substituting in lieu thereof the word “Lessee”. 

(l) Section 16.1(e) is hereby modified by: (i) deleting the words “the Guarantor or” appearing in
line 1 thereof; and (ii) deleting the words “Guarantor or” appearing in line 2 thereof. 
 (m)
Section 16.1(f) is hereby modified by deleting the words “or Guarantor” appearing in lines 1, 2, 4, 5, 6, 7-8 (both occurrences),
9-10, 11, 13, 16, 17, 21, 22 and 24 thereof. 

  
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 (n) Section 16.1(g) is hereby modified by deleting the terms of the
section in their entirety. 
 (o) Section 19.1(a) is hereby modified by: (i) deleting the words “or
Guarantor” appearing in line 32 thereof; and (ii) deleting the words “or the Guaranty, as applicable,” appearing in line 33 thereof. 

(p) Appendix A is hereby modified by: 

i. adding the following definition of “Acceptable Bank”: 

““Acceptable Bank” shall mean any bank or trust company (i) which is organized under the laws of the United States
of America or any State thereof, (ii) which has capital, surplus and undivided profits aggregating at least $1,000,000,000, and (iii) which has a Debt Rating issued by Standard & Poor’s of at least of at least AA- and a Debt Rating issued by Moody’s of at least Aa3 (or such bank or trust company must have either of such Debt Ratings in the event that either Moody’s or Standard & Poor’s (including
their respective successors) shall have ceased to exist).” 
 ii. restating the definition of “Address” as
follows: 
 ““Address” shall mean, subject to the rights of the party in question to change its Address in accordance
with the terms of the Operative Documents: 
 (i) with respect to Lessee: TXU Properties Company, 1601 Bryan Street, Dallas, Texas 75201,
Attention: Treasurer. 
 (ii) with respect to Lessor: c/o U.S. Bank, N.A. (as successor-in-interest to State Street Bank and Trust Company of Connecticut, National Association), as Owner Trustee, 1 Federal Street, 3rd Floor, Boston, Massachusetts 02110, Attention: Corporate Trust
Administration; 
 with a copy to the Owner Participant: ZSF/Dallas Tower LLC, c/o Zurich Structured Finance, Inc., 105 East
17th Street, New York, New York 10005, Attention: Mr. Christian Halabi; 
 with an additional copy to the Owner Participant:
ZSF/Dallas Tower LLC, c/o Zurich Structured Finance, Inc., 105 East 17th Street, New York, New York 10005, Attention: General Counsel; 

with an additional copy to Neil Tucker: Kramer Levin Naftalis & Frankel LLP, 1177 Avenue of the Americas, 27th Floor, New York,
New York 10036, Attention: Mr. Neil Tucker. 
 (iii) with respect to the Indenture Trustee: LaSalle Bank National Association, 135 South
LaSalle Street, Suite 1625, Chicago, Illinois 60603, Attention: GSTS - TXU Pass-Through Trust, Series 2002-1; 

  
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 with a copy to the Servicer: Wachovia Bank, National Association, 301 South College Street, NC
0606, Charlotte, NC 28288; 
 with an additional copy to each of the following holders of Pass-Through Trust Certificates (so long as
such holders continue to own Pass-Through Trust Certificates): (a) The Prudential Insurance Company of America, c/o Prudential Capital Group, 2200 Ross Avenue, Suite 4200E, Dallas, TX 75201; (b) Allstate Life Insurance Company,
Private Placements Department, 3075 Sanders Road, STE G5D, Northbrook, Illinois 60062-7127; (c) Allstate Life Insurance Company of New York, Private Placements Department, 3075 Sanders Road, STE G5D, Northbrook, Illinois 60062-7127;
(d) Nationwide Life Insurance Company, One Nationwide Plaza (1-33-07), Columbus, Ohio 43215-2220; (e) Nationwide Life and Annuity Insurance Company, One
Nationwide Plaza (1-33-07), Columbus, Ohio 43215-2220; (f) Thrivent Financial for Lutherans, Attn: Al Onstad, 625 Fourth Avenue South, Minneapolis, Minnesota 55415.

 (iv) with respect to the Servicer: Wachovia Bank, National Association, 301 South College Street, NC 0606, Charlotte, NC 28288; 

with a copy to the Indenture Trustee: LaSalle Bank National Association, 135 South LaSalle Street, Suite 1625, Chicago, Illinois 60603,
Attention: GSTS - TXU Pass-Through Trust, Series 2002-1; 
 iii. adding the following
definition of “Applicant”: 
 ““Applicant” shall mean TXU Corp. or any Affiliate of TXU Corp. other than the
Lessee.” 
 iv. adding the following definition of “Beneficiary”: 

““Beneficiary” shall mean the Servicer, acting on behalf of the Indenture Trustee, as assignee of the Lessor’s
rights under the Lease, and its successors and assigns, including any permitted assignees of its rights and obligations with respect to any Qualified Letter of Credit.” 

v. adding the following definition of “Debt Rating”: 

““Debt Rating” shall mean, with respect to any Person, the rating applicable to such Person’s senior, unsecured non-credit enhanced long-term indebtedness for borrowed money issued by Standard & Poor’s or Moody’s, as applicable. A Debt Rating, whether public or private, issued by Standard &
Poor’s or Moody’s shall be deemed to be in effect on the date of announcement or publication by Standard & Poor’s or Moody’s, as the case may be, of such Debt Rating or, in the absence of such announcement or
publication, on the effective date of such Debt Rating and will remain in effect until the date when any change in such Debt Rating is deemed to be in effect.” 

vi. deleting the definition of “Guarantor.” 

  
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 vii. deleting the definition of “Guaranty.” 

viii. adding the following definition of “Issuing Bank”: 

““Issuing Bank” shall mean an Acceptable Bank that issues a Qualified Letter of Credit.” 

ix. restating the following definition of “Lease”: 

““Lease” shall mean the Lease Agreement dated as of the Closing Date between Lessor, as lessor, and Lessee, as lessee, as
amended by that certain First Amendment to Lease Agreement dated as of June 1, 2007.” 
 x. within the definition
of “Lease Operative Documents”, deleting reference therein to “the Guaranty”; 
 xi. adding the following
definition of “Majority in Interest of the Certificateholders”: 
 ““Majority in Interest of the
Certificateholders” shall mean the “Majority in Interest of the Holders” as such term is defined in the Pass-Through Trust Agreement.” 

xii. adding the following definition of “Master Latter Agreement”: 

““Master Letter Agreement” shall have the meaning specified in Section 13.4 of the Lease.” 

xiii. within the definition of “Net Casualty Proceeds”, deleting the words “, the Guarantor” appearing in
line 4 thereof; 
 xiv. within the definition of “Net Condemnation Proceeds”, deleting the words “, the
Guarantor” appearing in line 3 thereof; 
 xv. adding the following definition of “Obligor”: 

““Obligor” shall mean, with respect to any Qualified Letter of Credit that is outstanding, each entity that is directly
or indirectly obligated to reimburse the Issuing Bank for any amounts drawn under such Qualified Letter of Credit; provided, however, that the term “Obligor” shall not include any entity which, on the day on which Beneficiary would
otherwise be entitled to draw on such Qualified Letter of Credit, is not directly or indirectly obligated to reimburse the Issuing Bank for any amounts drawn under such Qualified Letter of Credit.” 

xvi. within sub-item (c) of the definition of “Permitted Liens”,
deleting the word “Guarantor” appearing in line 7 thereof and substituting in lieu thereof the word “Lessee”; 

  
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 xvii. within sub-item (d) of the
definition of “Permitted Liens”, (1) deleting the words “Guarantor (or Lessee if there is no Guarantor)” appearing in lines 4-5 thereof and substituting in lieu thereof the word
“Lessee”, and (2) deleting the word “Guarantor” appearing in line 7 thereof and substituting in lieu thereof the word “Lessee”; 

xviii. within the final paragraph of the definition of “Permitted Liens”, deleting the words “Guarantor’s
and” appearing in line 4 thereof; 
 xix. adding the following definition of “Qualified Letter of Credit”:

 ““Qualified Letter of Credit” shall mean an irrevocable, standby letter of credit issued, at the request of
Applicant, by an Acceptable Bank in favor of the Beneficiary, substantially in form of Exhibit D attached to the Master Letter Agreement, or otherwise in form and substance reasonably satisfactory to the Lessor and the Majority in Interest of
the Certificateholders and satisfying all of the following criteria: 
 (A) at no time shall the Lessee be an Obligor with
respect to such letter of credit; 
 (B) such letter of credit shall at no time be collateralized with any asset in which the
Lessee has an ownership or other interest; 
 (C) such letter of credit shall at all times be at least equal to
(1) $5,000,000, plus (2) the greater of (I) the aggregate Base Rent then remaining to be paid over the remainder of the scheduled Base Term and (II) the largest Stipulated Loss Value listed on Schedule 12.1 to the Lease that
may become payable by the Lessee during the remainder of the scheduled Base Term, provided that in the event of a partial draw pursuant to clause (E)(I) below that reduces the amount of such letter of credit below the required minimum
amount described above, Applicant shall have thirty (30) days to increase or replace such letter of credit so that the amount of such letter of credit or the replacement letter of credit is equal to or greater than the required minimum amount
described above; 
 (D) (I) with respect to the Base Term, such letter of credit shall have a stated expiry date which is the
sooner to occur of (a) May 31, 2022 or (b) a date that is at least one year from date of the issuance thereof, and, if such expiry date is prior to May 31, 2022, which shall be automatically extended pursuant to the terms of such
letter of credit for a period of at least one year from the date of such expiration (but in no event beyond May 31, 2022) unless the Issuing Bank shall, not later than 60 days prior to the stated expiry date, provide written notice
to the Applicant, the Servicer, acting on behalf of the Indenture Trustee (as assignee of the Lessor’s rights under the Lease), and the Lessor, stating that the Issuing Bank elects not to automatically extend such letter of credit for any
additional period; or (II) with respect to any Renewal Term, such letter of credit shall have a stated expiry date which is the sooner to occur of (a) ninety (90) days after the expiration of such Renewal Term or (b) a date that
is at least one year from date of the issuance thereof, and, if such expiry date is prior to the date that is ninety (90) days after the expiration of such Renewal Term, which shall be automatically extended pursuant to the terms of such letter
of credit for a period of at least one year from the date of such 

  
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expiration (but in no event beyond the date that is ninety (90) days after the expiration of such Renewal Term) unless the Issuing Bank shall, not later than 60 days prior to the
stated expiry date, provide written notice to the Applicant and the Lessor, stating that the Issuing Bank elects not to automatically extend such letter of credit for any additional period; 

(E) such letter of credit shall provide that it may be drawn in whole or in part, with funds under such letter of credit being
available to the Beneficiary against presentation at the Issuing Bank’s office, in person, via courier or other delivery service, on or before the expiry date of such letter of credit, of the Beneficiary’s sight draft(s) drawn on the
Issuing Bank and accompanied by a written statement signed by an authorized representative or officer of the Beneficiary reading as one of the following (with the blanks filled in): 

(I) “WE HEREBY CERTIFY THAT THE LESSEE FAILED TO MAKE PAYMENT OF BASE RENT DUE AND PAYABLE
ON              PURSUANT TO THAT CERTAIN LEASE AGREEMENT DATED AS OF FEBRUARY 14, 2002, AS AMENDED, FOR THE PROPERTY CURRENTLY OR PREVIOUSLY KNOWN AS ENERGY PLAZA IN DALLAS,
TEXAS, AND THE AMOUNT OF THIS DRAWING, $            , AN AMOUNT EQUAL TO OR LESS THAN THE AMOUNT OF BASE RENT THAT ON SUCH DATE WAS DUE AND PAYABLE PURSUANT TO THE LEASE BUT NOT PAID,
REMAINS UNPAID AS OF THE DATE HEREOF.” 
 OR 

(II) “WE HEREBY CERTIFY THAT THE LESSEE FAILED TO MAKE A STIPULATED LOSS VALUE PAYMENT DUE AND PAYABLE
ON              PURSUANT TO THAT CERTAIN LEASE AGREEMENT DATED AS OF FEBRUARY 14, 2002, AS AMENDED, FOR THE PROPERTY CURRENTLY OR PREVIOUSLY KNOWN AS ENERGY PLAZA IN DALLAS,
TEXAS, AND THE AMOUNT OF THIS DRAWING, $            , AN AMOUNT EQUAL TO OR LESS THAN THE STIPULATED LOSS VALUE PAYMENT THAT ON SUCH DATE WAS DUE AND PAYABLE PURSUANT TO THE LEASE BUT NOT
PAID, REMAINS UNPAID AS OF THE DATE HEREOF.” 
 OR 

(III) “WE HEREBY CERTIFY THAT A LEASE EVENT OF DEFAULT HAS OCCURRED AND IS CONTINUING PURSUANT TO THAT CERTAIN LEASE
AGREEMENT DATED AS OF FEBRUARY 14, 2002, AS AMENDED, FOR THE PROPERTY CURRENTLY OR PREVIOUSLY KNOWN AS ENERGY PLAZA IN DALLAS, TEXAS, AND THE BENEFICIARY HEREBY DRAWS $            ,
THE MAXIMUM REMAINING AMOUNT AVAILABLE TO BE DRAWN UNDER THE LETTER OF CREDIT.” 

  
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 OR 

(IV) “WE HEREBY CERTIFY THAT (A) AN “OBLIGOR” (AS DEFINED IN THAT CERTAIN LEASE AGREEMENT DATED AS OF
FEBRUARY 14, 2002, AS AMENDED, FOR THE PROPERTY CURRENTLY OR PREVIOUSLY KNOWN AS ENERGY PLAZA IN DALLAS, TEXAS) HAS MADE A GENERAL ARRANGEMENT OR ASSIGNMENT FOR THE BENEFIT OF CREDITORS; (B) AN OBLIGOR HAS BECOME A “DEBTOR” AS
DEFINED IN 11 U.S.C. § 101 OF THE BANKRUPTCY CODE OR ANY SUCCESSOR STATUTE THERETO (AND, IN THE CASE OF A PETITION FILED AGAINST SUCH OBLIGOR, THE PETITION WAS FILED AT LEAST NINETY (90) DAYS PRIOR TO THE DATE OF THIS DRAWING AND
HAS NOT BEEN DISMISSED); (C) AT LEAST NINETY (90) DAYS PRIOR TO THE DATE OF THIS DRAWING THERE WAS AN APPOINTMENT OF A TRUSTEE OR RECEIVER TO TAKE POSSESSION OF SUBSTANTIALLY ALL OF THE ASSETS OF AN OBLIGOR AND POSSESSION HAS NOT BEEN
RESTORED; (D) THERE OCCURRED AN ATTACHMENT, EXECUTION OR OTHER JUDICIAL SEIZURE OF SUBSTANTIALLY ALL OF THE ASSETS OF AN OBLIGOR AT LEAST NINETY (90) DAYS PRIOR TO THE DATE OF THIS DRAWING AND SUCH ATTACHMENT, EXECUTION OR OTHER JUDICIAL
SEIZURE HAS NOT BEEN DISCHARGED; (E) AN OBLIGOR HAS ADMITTED IN WRITING ITS INABILITY TO PAY ITS DEBTS GENERALLY AS THEY BECOME DUE; (F) AN OBLIGOR HAS FILED A PETITION IN BANKRUPTCY OR A PETITION TO TAKE ADVANTAGE OF ANY INSOLVENCY ACT;
(G) AN OBLIGOR HAS FILED A PETITION OR ANSWER SEEKING REORGANIZATION OR ARRANGEMENT OR OTHER PROTECTION UNDER THE FEDERAL BANKRUPTCY LAWS OR ANY OTHER APPLICABLE LAW OR STATUTE OF THE UNITED STATES OF AMERICA OR ANY STATE THEREOF; (H) AN
OBLIGOR HAS LIQUIDATED OR DISSOLVED, OR BEEN PLACED UNDER CONSERVATORSHIP OR OTHER PROTECTION UNDER ANY APPLICABLE FEDERAL OR STATE LAW OR BEGAN PROCEEDINGS TOWARD SUCH LIQUIDATION OR DISSOLUTION; (I) A PETITION HAS BEEN FILED AT LEAST NINETY
(90) DAYS PRIOR TO THE DATE OF THIS DRAWING BY OR AGAINST AN OBLIGOR UNDER FEDERAL BANKRUPTCY LAWS, OR ANOTHER PROCEEDING HAS BEEN INSTITUTED AT LEAST NINETY (90) DAYS PRIOR TO THE DATE OF THIS DRAWING BY OR AGAINST AN OBLIGOR SEEKING TO
ADJUDICATE IT BANKRUPT OR INSOLVENT, OR SEEKING LIQUIDATION, REORGANIZATION, ARRANGEMENT, ADJUSTMENT OR COMPOSITION OF IT OR ITS DEBTS UNDER ANY LAW RELATING TO BANKRUPTCY, INSOLVENCY OR REORGANIZATION OR RELIEF OF DEBTORS, OR SEEKING THE ENTRY OF
AN ORDER FOR RELIEF OR THE APPOINTMENT OF A RECEIVER, 

  
 11 

 
TRUSTEE, CUSTODIAN OR OTHER SIMILAR OFFICIAL FOR SUCH OBLIGOR, OR FOR ANY SUBSTANTIAL PART OF THE PROPERTY OF SUCH OBLIGOR, AND SUCH PROCEEDING HAS NOT BEEN DISMISSED; OR (J) AN OBLIGOR HAS
TAKEN AN ACTION TO AUTHORIZE OR EFFECT ANY OF THE ACTIONS SET FORTH ABOVE, AND THE BENEFICIARY HEREBY DRAWS $            , THE MAXIMUM REMAINING AMOUNT AVAILABLE TO BE DRAWN UNDER THE
LETTER OF CREDIT.” 
 OR 

(V) “WE HEREBY CERTIFY THAT (A) AN “OBLIGOR” (AS DEFINED IN THAT CERTAIN LEASE AGREEMENT DATED AS OF
FEBRUARY 14, 2002, AS AMENDED, FOR THE PROPERTY CURRENTLY OR PREVIOUSLY KNOWN AS ENERGY PLAZA IN DALLAS, TEXAS) HAS RIGHTS OF REIMBURSEMENT, SUBROGATION OR OTHER CLAIMS WITH RESPECT TO SUCH LETTER OF CREDIT AGAINST THE LESSEE UNDER SUCH LEASE
AGREEMENT, (II) THE LESSEE IS DIRECTLY OR INDIRECTLY OBLIGATED TO REIMBURSE BANK FOR ANY AMOUNTS DRAWN UNDER BANK IRREVOCABLE STANDYBY LETTER OF CREDIT NO.             , OR
(III) SUCH LETTER OF CREDIT IS COLLATERALIZED WITH ANY ASSET IN WHICH THE LESSEE HAS AN OWNERSHIP OR OTHER INTEREST, AND THE BENEFICIARY HEREBY DRAWS $            , THE MAXIMUM
REMAINING AMOUNT AVAILABLE TO BE DRAWN UNDER THE LETTER OF CREDIT.” 
 OR 

(VI) “WE HEREBY CERTIFY THAT THIRTY (30) OR FEWER DAYS REMAIN PRIOR TO THE CURRENT EXPIRY DATE OF THIS LETTER OF
CREDIT, BANK HAS GIVEN NOTICE OF NON-EXTENSION AND THE SERVICER ON BEHALF OF THE INDENTURE TRUSTEE HAS NOT RECEIVED A QUALIFIED LETTER OF CREDIT AND BENEFICIARY IS ENTITLED TO DRAW
$            , THE MAXIMUM REMAINING AMOUNT AVAILABLE TO BE DRAWN UNDER THE LETTER OF CREDIT.” 

OR 

(VII) “WE HEREBY CERTIFY THAT THE LESSEE WAS REQUIRED TO DELIVER A QUALIFYING LETTER OF CREDIT ON OR BEFORE MAY 15,
2022, PURSUANT TO THAT CERTAIN MASTER LETTER AGREEMENT DATED AS OF JUNE     , 2007, THE LESSEE FAILED TO DELIVER SUCH LETTER OF CREDIT BY SUCH DATE AND HAS NOT DELIVERED SUCH LETTER OF CREDIT AS OF THE DATE OF THIS DRAWING, AND
THE BENEFICIARY IS ENTITLED TO DRAW $            , AN AMOUNT EQUAL TO THE AMOUNT OF SUCH LETTER OF CREDIT REQUIRED TO BE DELIVERED.” 

  
 12 

 (F) such letter of credit shall provide that any draw will be honored in same day
funds, wired in accordance with the Issuing Bank’s normal practices, but in no event no later than the next business day after the date of demand; and 

(G) such letter of credit shall be transferable in its entirety, but not in part, on one or more occasions at no cost to Lessor
or Beneficiary, and such transfer must be acknowledged by the Issuing Bank if requested by either Lessor or Beneficiary.” 

xx. restating the definition of “Servicer” as follows: 

““Servicer” shall mean Wachovia Bank, National Association, as successor to First Union National Bank, as servicer under
the Indenture and its successors and assigns.” 
 xxi. deleting the definition of “TXU Guaranty Agreement.”

 (q) Schedule 9.1, part (b) is hereby modified by deleting the words “Guarantor (or Lessee if there is
no Guarantor)” appearing in line 1 thereof and substituting in lieu thereof the word “Lessee”. 
 (r) Exhibit B, part
(f) is hereby modified by deleting the words “[and the Guarantor]” appearing in line 1 thereof. 
 (s) Any references in
the Lease to “Guarantor” or “Guaranty” not hereinabove referenced are hereby deleted and the terms of the Lease are hereby accordingly modified to reflect the termination of the Guaranty and Guarantor. 

3. Lessee’s Required Rating. Lessee acknowledges that certain rights and obligations of Lessee under the Lease, as modified by
this Amendment, are contingent upon whether Lessee has a Required Rating equal to or greater than the Trigger Rating. Such rights and obligations include, without limitation, those included in Sections 7.1, 8.5, 8.6, 9.1 and 12.1 of the Lease,
among others, and in certain definitions contained in Appendix A to the Lease including, among others, the definition of “Permitted Liens”. Lessee further acknowledges that it has no rating from any NSRO, and that unless and until it
has a Required Rating equal to or greater than the Trigger Rating from at least two (2) NSROs, all of such rights referenced hereinabove shall not be available to Lessee and all of such obligations referenced hereinabove shall be imposed upon
Lessee. 
 4. Representations and Warranties. Lessee represents and warrants to Lessor that the following are true and correct as of
the date of this Amendment: 
 (a) Due Organization. Lessee is a corporation duly organized, validly existing and in good standing in
the State of Texas and is qualified to do business in the State of Texas. Lessee has the corporate power and authority to conduct its business as now conducted, to own or hold under lease its property, to lease the Property and to enter into and
perform its obligations under the Lease, as amended by this Amendment, and the Master Letter Agreement. 

  
 13 

 
Lessee is duly qualified to do business and is in good standing as a foreign corporation in any jurisdiction where the failure to so qualify would have a material adverse effect on its ability to
perform its obligations under the Lease, as amended by this Amendment, and the Master Letter Agreement. 
 (b) Due Authorization; No
Conflict. Each of the Lease, as amended by this Amendment, and the Master Letter Agreement has been duly authorized by all necessary corporate action on the part of Lessee and has been duly executed and delivered by Lessee, and the execution,
delivery and performance thereof by Lessee will not, (i) require any approval of the stockholder of Lessee (except as heretofore obtained) or any approval or consent of any trustee or holder of any indebtedness or obligation of Lessee or of any
Affiliate of Lessee, other than such consents and approvals as have been obtained, (ii) contravene any Applicable Law binding on Lessee or (iii) contravene or result in any breach of or constitute any default under Lessee’s charter or
by-laws or other organizational documents, or any indenture, judgment, order, mortgage, loan agreement, contract, partnership or joint venture agreement, lease or other agreement or instrument to which Lessee
is a party or by which Lessee is bound, or result in the creation of any Lien (other than pursuant to the Operative Documents) upon any of the property of Lessee. 

(c) Enforceability. Each of the Lease, as amended by this Amendment, and the Master Letter Agreement constitutes the legal, valid and
binding obligation of Lessee, enforceable against Lessee in accordance with the terms thereof, except as enforceability may be limited by bankruptcy, moratorium, fraudulent conveyance, insolvency, general principles of equity or other similar laws
affecting the enforcement of creditors’ rights in general. 
 5. Full Force and Effect. Except as herein expressly amended,
modified and supplemented, all of the terms, conditions and provisions of the Lease remain in full force and effect and are hereby ratified and confirmed in every respect. Lessee takes the occasion of the execution of this Amendment to confirm that,
to the best of Lessee’s knowledge: (i) Lessor is not in default under the Lease and Lessor has fully and properly fulfilled all of its obligations under the Lease; (ii) Lessee has no dispute with respect to any payments of Base Rent
and/or Supplemental Rent heretofore made by Lessee nor any other claims against Lessor under or in connection with the Lease or otherwise; and (iii) Lessee is in possession of the Property and is satisfied with the condition of the Property and
that Lessor shall have no obligation to perform any work and/or installations, supply any materials or equipment and/or otherwise incur any cost or expense in order to prepare same for Lessee’s continued occupancy or otherwise. Lessor takes the
occasion of the execution of this Amendment to confirm that, to the best of Lessor’s knowledge: (i) Lessee is not in default under the Lease and Lessee has fully and properly fulfilled all of its obligations under the Lease; and
(ii) Lessor has no dispute with respect to any payments of Base Rent and/or Supplemental Rent heretofore made by Lessee nor any other claims against Lessee under or in connection with the Lease or otherwise. 

6. Counterparts. This Amendment may be executed in any number of counterparts, each of which shall be deemed an original and all of
which counterparts together shall constitute one agreement with the same effect as if the parties had signed the same signature page. Delivery of an executed counterpart of a signature page of this Amendment by facsimile shall be effective as
delivery of a manually executed counterpart. 

  
 14 

 7. Effectiveness. This Amendment shall be effective as of the date first above written.

 8. Governing Law. This Amendment shall be governed by, and construed in accordance with, the laws of the State of Texas and shall
be binding upon the parties hereto and their respective permitted successors in interest and assigns. 
 [REMAINDER OF PAGE INTENTIONALLY
LEFT BLANK] 

  
 15 

 IN WITNESS WHEREOF, Lessor and Lessee have executed this Amendment as of date first above
written. 
  

									
	Lessor:	 		 	U.S. BANK, N.A. (as successor-in-interest to State Street Bank and Trust Company of Connecticut, National Association), not in its
individual capacity but solely as owner trustee of ZSF/Dallas Tower Trust
				
		 		 	By:	 	 /s/ EARL W. DENNISON JR.

					
		 		 		 	Name:	 	EARL W. DENNISON JR.
					
		 		 		 	Title:	 	Vice President
			
	Lessee:	 		 	TXU PROPERTIES COMPANY
				
		 		 	By:	 	 /s/ ANTHONY HORTON

					
		 		 		 	Name:	 	Anthony Horton
					
		 		 		 	Title:	 	Treasurer and Assistant SecretaryEX-10.29

 Exhibit 10.29 

STOCK PURCHASE AGREEMENT 

This STOCK PURCHASE AGREEMENT (this “Agreement”), dated as of October 25, 2016, is entered into by and between TCEH
Corp., a Delaware corporation (the “Company”), and the undersigned (the “Purchaser”). 
 RECITALS

 WHEREAS, the Company desires to issue and Purchaser desires to acquire (the “Acquisition”) shares of Common Stock of
the Company, par value $.01 per share (the “Common Stock”). 
 AGREEMENT 

NOW, THEREFORE, in consideration of the premises, mutual covenants and agreements hereinafter contained and for other good and valuable
consideration, the receipt and adequacy of which are hereby acknowledged, the parties hereto agree as follows: 
 ARTICLE I 

PURCHASE AND SALE OF SECURITIES 

1.1 Purchase of Shares. Subject to the terms and conditions set forth herein and in reliance on the representations and warranties of
the parties contained herein, the Company agrees to sell and Purchaser agrees to purchase the number of shares (the “Shares”) of Common Stock set forth opposite Purchaser’s name on the signature page hereto, for the cash
purchase price set forth opposite Purchaser’s name on the signature page hereto (the “Purchase Price”). 
 1.2
Closing. 
 (a) The sale and purchase of the Shares shall take place at a closing (the “Closing”) to be held
remotely via the exchange of documents and signature pages at 6:00 p.m., Dallas, Texas time, on the date of this Agreement, or at such other date as the Company and the Purchaser mutually may agree in writing. The day on which the Closing takes
place is referred to as the “Closing Date.” 
 (b) At the Closing: 

(A) The Purchaser shall deliver the Purchase Price to the Company via cash or check; and 

(B) the Company shall cause the Shares to be registered in book-entry form on the books and records of the Company in the name
of Purchaser. 

 ARTICLE II 

REPRESENTATIONS AND WARRANTIES OF THE COMPANY 

The Company makes the following representations and warranties to Purchaser, each and all of which shall be true and correct as of the date of
the execution and delivery of this Agreement and shall survive the execution and delivery of this Agreement: 
 2.1 Corporate
Existence. The Company is duly organized and validly existing under the laws of the jurisdiction of its organization and has all requisite corporate power to own its assets and carry on its business as now being conducted and to consummate the
transactions contemplated by this Agreement. 
 2.2 Authorization. The Company has all requisite corporate power and authority to
enter into this Agreement, issue the Shares and perform its obligations hereunder. The execution, delivery, and performance of this Agreement have been duly authorized by all necessary corporate action on the part of the Company, and this Agreement
has been duly executed and delivered by the Company. This Agreement (assuming the due execution and delivery thereof by Purchaser) constitutes the legal, valid and binding obligation of the Company, enforceable against the Company in accordance with
its terms subject, as to enforceability, to bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium, and other laws of general applicability affecting the rights of creditors and to general principles of equity. 

2.3 Validity of Securities. The Shares to be purchased and sold pursuant to this Agreement, when issued, sold and delivered in
accordance with its terms for the consideration expressed herein, shall be duly and validly issued and shall be fully paid and non-assessable. 

ARTICLE III 

REPRESENTATIONS AND WARRANTIES OF PURCHASER 

Purchaser makes the following representations and warranties to the Company, each and all of which shall be true and correct as of the date of
the execution and delivery of this Agreement and shall survive the execution and delivery of this Agreement: 
 3.1 Investment Intent and
Eligibility. 
 (a) Purchaser is an “accredited investor” within the meaning of Rule 501(a) under Regulation D
promulgated under the Securities Act of 1933 (the “Securities Act”). 
 (b) The Shares to be acquired by Purchaser pursuant
to this Agreement are being acquired for Purchaser’s own account, not as a nominee or agent for any other person and without a view to the distribution of such Shares or any interest therein in violation of the Securities Act or any state
securities laws, and Purchaser has no present intention of selling, granting any participation in or otherwise distributing the Shares. Purchaser does not have any contract, undertaking, agreement, or arrangement with any person to sell, transfer or
grant participation to such person or to any third person, with respect to any of the Shares. 

  
 2 

 (c) Purchaser (i) has such knowledge and experience in financial and business matters as to
be capable of evaluating the merits and risks of its prospective investment and is able, without materially impairing Purchaser’s financial condition, to hold the Shares for an indefinite period of time and to suffer a complete loss on such
investment and has prior investment experience. 
 (d) Purchaser has made the representations, warranties, covenants, and agreements
contained in this Agreement with the expectation that they will be relied upon by the Company in determining whether (i) Purchaser is a suitable as an investor in the Shares and (ii) the Shares may be issued to Purchaser without first
registering the Shares under the Securities Act and all applicable state securities laws. 
 3.2 Authorization. Purchaser has the
right and power to execute, deliver and perform Purchaser’s obligations under this Agreement, and this Agreement is enforceable against Purchaser in accordance with its terms, subject, as to enforceability, to bankruptcy, insolvency, fraudulent
conveyance, reorganization, moratorium, and other laws of general applicability affecting the rights of creditors and to general principles of equity. 

3.3 Material Changes. Purchaser shall promptly notify the Company in writing of any material change in any of the representations or
warranties set forth in this Agreement prior to the acceptance of this Agreement by the Company. 
 3.4 Receipt of Information.
Purchaser has carefully evaluated the risks involved in investing in the Shares. Purchaser has been afforded the opportunity to ask such questions as Purchaser has deemed necessary of, and to receive answers from, representatives of the Company
concerning the terms and conditions of the offering of the Shares and the merits and risks of investing in the Shares. Purchaser has received all documents and information relating to an investment in the Shares requested by or on behalf of
Purchaser to the satisfaction of Purchaser, including such information relating to the Company as Purchaser has deemed appropriate in making an investment decision with respect to the Shares. Purchaser is not relying on the Company or its affiliates
with respect to economic considerations involved in the investment in the Shares. Purchaser has made, independently and without reliance on the Company or its affiliates (except to the extent Purchaser has relied on the express representations and
warranties of the Company in this Agreement), its own analysis of the Shares and the Company for the purpose of acquiring the Shares. 
 3.5
No Brokers. No broker, finder or agent will have any claim against the Company for any fees or commissions in connection with the transactions contemplated by this Agreement based on arrangements made by or on behalf of Purchaser. 

3.6 Non-Reliance. Notwithstanding anything in this Agreement to the contrary and except for
those representations and warranties expressly set forth herein, it is the explicit intent of each party, and the parties hereby agree, that none of the Company or any of its affiliates or their respective representatives has made or is making any
representation or warranty whatsoever, express or implied, at common law, statutory or otherwise, written or oral with respect to (i) the Shares or the Company or (ii) the accuracy or completeness of the information, records, and data now,
heretofore, or hereafter made available to Purchase in connection with 

  
 3 

 
this Agreement (including any description of Company, the Shares, revenue, price and expense assumptions, financial projections or forecasts, or any other information furnished to Purchaser by
the Company or any affiliate of the Company (or any of the respective representatives thereof)) and any such other representations or warranties (and reliance thereon) are hereby expressly disclaimed. Purchaser has not executed or authorized the
execution of this Agreement in reliance upon any such promise, representation or warranty not expressly set forth herein. Notwithstanding anything in this Agreement to the contrary, and without limiting the foregoing, none of the Company or any of
its Affiliates or any other person or party is making or has made, and Purchaser is not relying on, any representation or warranty regarding the Company, any of its Affiliates or any other matter whatsoever in connection with the transactions
contemplated hereby, except for those representations and warranties expressly set forth herein. 
 ARTICLE IV 

MISCELLANEOUS 
 4.1
Entire Agreement; Amendments and Waivers. This Agreement sets forth the entire understanding of the parties, and supersedes all prior agreements and all other arrangements and communications, whether oral or written, with respect to the
subject matter hereof. Amendments or modifications to this Agreement may only be made, and compliance with any term, covenant, agreement, condition or provision set forth herein may only be omitted or waived (either generally or in a particular
instance and either retroactively or prospectively), upon the written consent of Purchaser and the Company. Such waiver or failure to insist upon strict compliance with such term, covenant, agreement, condition or provision shall not operate as a
waiver of, or estoppel with respect to, any other failure. 
 4.2 Further Assurances. From time to time, as and when requested by the
Company, Purchaser will execute and deliver, or cause to be executed and delivered, all such documents and instruments as may be reasonably necessary to consummate the transactions contemplated by this Agreement. 

4.3 Transfer Restrictions. Purchaser acknowledges, understands and agrees that: 

(a) the offering and sale of the Shares is intended to be exempt from registration under the Securities Act, by virtue of the provisions of
either Section 4(2) of the Securities Act or Rule 506 of Regulation D promulgated under the Securities Act by the SEC; 
 (b) none
of the Shares have been registered under the Securities Act or any securities or “blue sky” laws of any state; and 
 (c) the
Shares may not be offered, sold, transferred, pledged, hypothecated or otherwise assigned unless (i) registered under the Securities Act or any securities or “blue sky” laws of any state or (ii) an exemption from such
registration is available. 
 4.4 Notices. All notices and other communications hereunder shall be in writing and shall be deemed
given upon the earlier of delivery thereof if by hand or upon receipt if sent by mail (registered or certified mail, postage prepaid, return receipt requested) or on the second next day (not including a Saturday, Sunday or other day on which banking
institutions in the City of 

  
 4 

 
Dallas, Texas shall be permitted or required by law or executive order to be closed) after deposit if sent by a recognized overnight delivery service or upon transmission if sent by facsimile
transmission as follows: 
  

			
	 If to the Company:
	  	 TCEH Corp.

		  	 1601 Bryan Street, 22nd Floor

		  	 Dallas, Texas 75201

		  	 Attention: General Counsel

		  	 Facsimile: 214.875.8306

 4.5 Governing Law. This Agreement and all matters relating to, arising out of or in connection herewith
shall be governed by and construed in accordance with the laws of the State of Texas without regard to the conflicts-of-laws rules thereof. 

4.6 Assignment; Binding Effect. Purchaser is not permitted to assign his, her or its rights under this Agreement. This Agreement shall
be binding upon the Company, Purchaser and each of their respective successors and permitted assigns. 
 4.7 Counterparts. This
Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same agreement. Any facsimile or portable document format (pdf) copies hereof or signature
hereon shall, for all purposes, be deemed originals. 
 4.8 Headings. The article and section headings contained in this Agreement
are solely for the purpose of reference, are not part of the agreement of the parties and shall not affect in any way the meaning or interpretation of this Agreement. 

4.9 Severability. If any provision in this Agreement shall be held invalid, illegal or unenforceable in any respect for any reason, the
validity, legality and enforceability of any such provision in every other respect and the remaining provisions shall not in any way be affected or impaired thereby. 

4.10 No Recourse. Notwithstanding any of the terms or provisions of this Agreement, each of Purchaser on the one hand, and the Company
on the other hand, agrees that neither it nor any person acting on its behalf may assert any claims or cause of action against any officer or director of the other party or partner, member or shareholder of any such other party in connection with or
arising out of this Agreement or the transactions contemplated hereby except to the extent that any of the foregoing are parties to this Agreement. 

4.11 Consent to Jurisdiction. Each party hereto, by its, his or her execution hereof, (i) hereby irrevocably submits to the
exclusive jurisdiction of the state and federal courts in the Dallas County, Texas for the purposes of any claim or action arising out of or based upon this Agreement or relating to the subject matter hereof, (ii) hereby waives, to the extent
not prohibited by applicable law, and agrees not to assert by way of motion, as a defense or otherwise, in any such claim or action, any claim that it, he or she is not subject personally to the jurisdiction of the above-named courts, that its, his
or her property is exempt or immune from attachment or execution, that any such proceeding brought in the above-named court is improper 

  
 5 

 
or that this Agreement or the subject matter hereof may not be enforced in or by such court and (iii) hereby agrees not to commence any claim or action arising out of or based upon this
Agreement or relating to the subject matter hereof other than before the above-named courts nor to make any motion or take any other action seeking or intending to cause the transfer or removal of any such claim or action to any court other than the
above-named courts whether on the grounds of inconvenient forum or otherwise. The Company and Purchaser hereby consent to service of process in any such proceeding, and agree that service of process by registered or certified mail, return receipt
requested, at its address specified pursuant to Section 4.4 is reasonably calculated to give actual notice. Each party hereto shall pay its own costs and expenses incurred in connection with any dispute arising out of this
Agreement. 
 4.12 WAIVER OF JURY TRIAL. TO THE EXTENT NOT PROHIBITED BY APPLICABLE LAW THAT CANNOT BE WAIVED, EACH PARTY HERETO
HEREBY WAIVES AND COVENANTS THAT IT WILL NOT ASSERT (WHETHER AS PLAINTIFF, DEFENDANT OR OTHERWISE) ANY RIGHT TO TRIAL BY JURY IN ANY FORUM IN RESPECT OF ANY ISSUE OR ACTION, CLAIM, CAUSE OF ACTION OR SUIT (IN CONTRACT, TORT OR OTHERWISE), INQUIRY,
PROCEEDING OR INVESTIGATION ARISING OUT OF OR BASED UPON THIS AGREEMENT OR THE SUBJECT MATTER HEREOF OR IN ANY WAY CONNECTED WITH OR RELATED OR INCIDENTAL TO THE TRANSACTIONS CONTEMPLATED HEREBY, IN EACH CASE WHETHER NOW EXISTING OR HEREAFTER
ARISING. EACH PARTY HERETO ACKNOWLEDGES THAT IT HAS BEEN INFORMED BY THE OTHER PARTY HERETO THAT THIS SECTION 4.12 CONSTITUTES A MATERIAL INDUCEMENT UPON WHICH THEY ARE RELYING AND WILL RELY IN ENTERING INTO THIS AGREEMENT. ANY PARTY HERETO
MAY FILE AN ORIGINAL COUNTERPART OR A COPY OF THIS SECTION 4.12 WITH ANY COURT AS WRITTEN EVIDENCE OF THE CONSENT OF EACH SUCH PARTY TO THE WAIVER OF ITS RIGHT TO TRIAL BY JURY. 

Signature pages follow. 

  
 6 

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

							
		 		 	Purchaser:
			
	 Number of Shares
 to be
Purchased:
	 	80,231	 	 /s/ Curtis Morgan

	 	 	Name:	 	Curtis Morgan
			
	Price Per Share:	 	$15.58	 	
			
	Aggregate Purchase Price:	 	$1,250,000	 	Address of Purchaser’s principal residence or principal place of business:
			
		 		 	  

			
		 		 	  

			
		 		 	Purchaser’s telephone number:
			
		 		 	  

			
		 		 	Purchaser’s email address:
			
		 		 	  

 [Signature Page to Stock Purchase Agreement] 

 
			
	Company:
	  
 TCEH CORP.

 

 
			
	By:  	 	 /s/ Stephanie Zapata Moore

 
			
	Name:  	 	 Stephanie Zapata Moore

 
			
	Title:  	 	 EVP and General Counsel

 [Signature Page to Stock Purchase Agreement]

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