Document:

Exhibit 10.15

 

EXECUTION VERSION

 

ABL
JOINDER AGREEMENT

 

ABL JOINDER AGREEMENT, dated as of November
16, 2018 (this “Joinder Agreement”), among PLY GEM MIDCO, LLC (formerly known as Ply Gem Midco, Inc., and formerly
known as Pisces Midco, Inc.), a Delaware limited liability company (the “Predecessor Parent Borrower”), NCI
BUILDING SYSTEMS, INC., a Delaware corporation (the “Successor Parent Borrower”), each of the Subsidiary Guarantors
(as defined in the Credit Agreement (as defined below)) party hereto and UBS AG, STAMFORD BRANCH, as administrative agent for the
Lenders (as defined below) (the “Administrative Agent”) and as collateral agent for the Secured Parties (as
defined in the Credit Agreement) (the “Collateral Agent”).

 

WITNESSETH:

 

WHEREAS, the Predecessor Parent Borrower
and the Administrative Agent are parties to (i) that certain ABL Credit Agreement, dated as of April 12, 2018 (as amended,
supplemented, waived or otherwise modified from time to time, the “Credit Agreement”), among the Predecessor
Parent Borrower, the Subsidiary Borrowers (as defined therein) from time to time party thereto, the several banks and other financial
institutions from time to time party thereto (the “Lenders”), the Administrative Agent, the Collateral Agent
and the other parties thereto and (ii) that certain ABL U.S. Guarantee and Collateral Agreement, dated as of April 12, 2018
(as amended, supplemented, waived or otherwise modified from time to time, the “U.S. Guarantee and Collateral Agreement”),
among the Predecessor Parent Borrower, the U.S. Subsidiary Borrowers (as defined in the ABL Credit Agreement) from time to time
party thereto, the guarantors from time to time party thereto, the Collateral Agent and the Administrative Agent;

 

WHEREAS, the Canadian Borrowers (as defined
in the ABL Credit Agreement) and the Administrative Agent are parties to that certain ABL Canadian Guarantee and Collateral Agreement,
dated as of April 12, 2018 (as amended, supplemented, waived or otherwise modified from time to time, the “Canadian Guarantee
and Collateral Agreement”), among the Canadian Borrowers from time to time party thereto, the guarantors from time to
time party thereto, the Collateral Agent and the Administrative Agent;

 

WHEREAS, in connection with the transactions
contemplated by the Panther Merger Agreement, the Predecessor Parent Borrower is merging with and into the Successor Parent Borrower
(the “Merger”), with the Successor Parent Borrower being the survivor of such merger;

 

WHEREAS, Subsection 8.2(a)(x) of the Credit
Agreement provides that the Predecessor Parent Borrower shall be permitted to merge with or into any Person, provided that upon
any such merger the Person formed by or surviving such merger shall expressly assume all the obligations of the Predecessor Parent
Borrower under the Loan Documents;

 

WHEREAS, clause (ii) of the proviso to Subsection 8.2(a)(x)
of the Credit Agreement provides that each Subsidiary Guarantor shall deliver a joinder or other document or instrument, pursuant
to which such U.S. Subsidiary Guarantor shall confirm its Subsidiary Guaranty;

 

WHEREAS, clause (iii) of the proviso to
Subsection 8.2(a)(x) of the Credit Agreement provides that each Subsidiary Guarantor shall have by a supplement to the U.S.
Guarantee and Collateral Agreement or the Canadian Guarantee and Collateral Agreement, as applicable, or another document or instrument
affirmed that its obligations thereunder shall apply to its Guarantee as reaffirmed pursuant to clause (ii) of the proviso to Subsection 8.2(a)(x)
of the Credit Agreement; and

 

    	 		 

     

    

 

WHEREAS, the last paragraph of Subsection 8.2
of the Credit Agreement provides that the Successor Parent Borrower will succeed to, and be substituted for, and may exercise every
right and power of, the Predecessor Parent Borrower under the Loan Documents, and that thereupon the Predecessor Parent Borrower
shall be relieved of all obligations and covenants under the Loan Documents.

 

NOW, THEREFORE, in consideration of the
foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the parties hereto hereby
agree as follows:

 

		1.	Defined Terms. Unless otherwise defined herein, terms defined in the Credit Agreement and used herein shall have the
meanings given to them in the Credit Agreement.

 

		2.	Assumption and Joinder of Agreements and Obligations. In accordance with Subsection 8.2(a)(x) of the Credit Agreement,
effective as of the Effective Date (as defined below), the Successor Parent Borrower hereby becomes a party to the Credit Agreement,
the U.S. Guarantee and Collateral Agreement and each other Loan Document to which the Predecessor Parent Borrower is a party, and
shall thereafter be deemed to be “Parent Borrower” for purposes of the Credit Agreement, the U.S. Guarantee and Collateral
Agreement and the other Loan Documents to which the Predecessor Parent Borrower is a party as if originally named therein, and
the Successor Parent Borrower expressly assumes, confirms and agrees to perform and observe all of the indebtedness, obligations
(including, without limitation, all obligations in respect of the Loans), covenants, agreements, terms, conditions, duties and
liabilities of the Predecessor Parent Borrower as “Parent Borrower” under or with respect to the Credit Agreement,
any Notes and any of the other Loan Documents to which the Predecessor Parent Borrower is a party in its capacity as “Parent
Borrower” as fully as if the Successor Parent Borrower were originally a signatory in the capacity of the “Parent Borrower”
thereto. At all times from and after the Effective Date, all references to the “Parent Borrower” in the Credit Agreement
or any of the other Loan Documents and any and all certificates and other documents executed by the Predecessor Parent Borrower
in connection therewith shall be deemed to refer to the Successor Parent Borrower.

 

		3.	Effectiveness. This Joinder Agreement shall become effective on the date (such date, the “Effective Date”)
that the following conditions have been satisfied:

 

		a)	the Administrative Agent shall have received a counterpart of this Joinder Agreement executed by the Predecessor Parent
Borrower, the Successor Parent Borrower and each Subsidiary Guarantor; and
	 	 	 

			

		b)	the Merger shall have occurred.

			

 

For the avoidance of doubt, the Effective
Date is November 16, 2018.

 

    	 	2	 

     

    

 

		4.	Effect of Amendment; Acknowledgment. This Joinder Agreement shall constitute a Loan Document for purposes of the Credit
Agreement and from and after the Effective Date, all references to the Credit Agreement in any Loan Document and all references
in the Credit Agreement to “this Agreement,” “hereunder,” “hereof” or words of like import
referring to the Credit Agreement, shall, unless expressly provided otherwise, refer to the Credit Agreement as modified by this
Joinder Agreement, except for (a) the representations and warranties made by the Borrowers and the other Loan Parties prior
to the Effective Date (which representations and warranties made prior to the Effective Date shall not be superseded or rendered
ineffective by this Joinder Agreement as they pertain to the period prior to the Effective Date) and (b) any action or omission
performed or required to be performed pursuant to the Credit Agreement prior to the Effective Date. For the avoidance of doubt,
any certificate or other document the form of which is set out in any exhibit attached to the Credit Agreement or any other Loan
Document may be revised, as applicable, to refer to the Credit Agreement as modified by this Joinder Agreement. This Joinder Agreement
shall not constitute a novation of the Credit Agreement or any other Loan Document. The Successor Parent Borrower reaffirms, as
of the effectiveness of this Joinder Agreement, its obligations under the Loan Documents to which it is party. Without limiting
the foregoing, the Successor Parent Borrower, as of the effectiveness of this Joinder Agreement, hereby (i) acknowledges
and agrees that all of its obligations under the U.S. Guarantee and Collateral Agreement and the other Security Documents to which
it is a party are reaffirmed and remain in full force and effect on a continuous basis, (ii) reaffirms each Lien granted
by the Successor Parent Borrower to the Collateral Agent for the benefit of the Secured Parties made pursuant to the U.S. Guarantee
and Collateral Agreement and (iii) agrees that the Borrower Obligations and the Guarantor Obligations (each as defined
in the U.S. Guarantee and Collateral Agreement) include, among other things and without limitation, the due and punctual payment
by the Borrowers or the Guarantors, as applicable, when due and payable (whether at the stated maturity, by acceleration or otherwise)
of principal and interest on the Loans made pursuant to the Commitments under the Credit Agreement as modified by this Joinder
Agreement.

 

		5.	Affirmation of Loan Documents. Each Subsidiary Guarantor acknowledges and consents to each of the provisions of this
Joinder Agreement. Each Subsidiary Guarantor further acknowledges and agrees that all Obligations with respect to the Commitments
under the Credit Agreement as modified by this Joinder Agreement shall be fully guaranteed and secured pursuant to the U.S. Guarantee
and Collateral Agreement or the Canadian Guarantee and Collateral Agreement, as applicable, in accordance with the terms and provisions
thereof. Each Subsidiary Guarantor reaffirms its obligations under the Loan Documents to which it is party, including its Subsidiary
Guaranty. Without limiting the foregoing, as of the effectiveness of this Joinder Agreement, each of the Subsidiary Guarantors hereby
(i) acknowledges and agrees that all of its obligations under the U.S. Guarantee and Collateral Agreement or the Canadian
Guarantee and Collateral Agreement, as applicable, and the other Security Documents to which it is a party are reaffirmed and remain
in full force and effect on a continuous basis, (ii) reaffirms each Lien granted by such Subsidiary Guarantor to the
Collateral Agent for the benefit of the Secured Parties made pursuant to the U.S. Guarantee and Collateral Agreement or the Canadian
Guarantee and Collateral Agreement, as applicable, and (iii) agrees that the Borrower Obligations and the Guarantor
Obligations (each as defined in the U.S. Guarantee and Collateral Agreement or the Canadian Guarantee and Collateral Agreement,
as applicable) include, among other things and without limitation, the due and punctual payment by the Borrowers or the Subsidiary
Guarantors, as applicable, when due and payable (whether at the stated maturity, by acceleration or otherwise) of principal and
interest on the Loans made pursuant to the Commitments under the Credit Agreement as modified by this Joinder Agreement.

 

    	 	3	 

     

    

 

		6.	Intercreditor Agreement. The Successor Parent Borrower hereby acknowledges that it has received a copy of the Intercreditor
Agreement and consents thereto, agrees to recognize all rights granted thereby to the ABL Agent, the ABL Secured Parties, the Cash
Flow Agent, the Cash Flow Secured Parties, any Additional Agent and any Additional Secured Parties (as each such term is defined
in the Intercreditor Agreement) and will not do any act or perform any obligation which is not in accordance with the agreements
set forth in the Intercreditor Agreement.

 

		7.	GOVERNING LAW. THIS JOINDER AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES HEREUNDER SHALL BE GOVERNED BY,
AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK, WITHOUT GIVING EFFECT TO ITS PRINCIPLES OR
RULES OF CONFLICT OF LAWS TO THE EXTENT SUCH PRINCIPLES OR RULES ARE NOT MANDATORILY APPLICABLE BY STATUTE AND WOULD REQUIRE OR
PERMIT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION.

 

		8.	Counterparts. This Joinder Agreement may be executed by one or more of the parties to this Joinder Agreement on any
number of separate counterparts (including by facsimile and other electronic transmission), and all of such counterparts taken
together shall be deemed to constitute one and the same instrument. A set of the copies of this Joinder Agreement signed by all
the parties shall be delivered to the Successor Parent Borrower and the Administrative Agent.

 

		9.	Headings. The headings of this Joinder Agreement are for purposes of reference only and shall not limit or otherwise
affect the meaning hereof.

 

		10.	Severability. Any provision of this Joinder Agreement which is prohibited or unenforceable in any jurisdiction shall,
as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining
provisions hereof, and any such prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable
such provision in any other jurisdiction.

 

		11.	Successors and Assigns. The provisions of this Joinder Agreement shall be binding upon and inure to the benefit of the
parties hereto and their respective successors and assigns.

 

[The Remainder of This Page is Left Intentionally
Blank]

 

    	 	4	 

     

    

 

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

 

	 	PLY GEM MIDCO, LLC
	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name: Shawn K. Poe
	 	 	Title: Chief Financial Officer
	 	 	 
	 	NCI BUILDING SYSTEMS, INC.
	 	 	 
	 	By:	/s/ Todd R. Moore
	 	 	Name: Todd R. Moore
	 	 	Title: Executive Vice President, Chief Legal, Risk & Compliance Officer and Corporate Secretary

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	Acknowledged and Accepted:
	 	 
	 	UBS AG, STAMFORD BRANCH, as Administrative Agent and Collateral Agent
	 	 	 
	 	By:	/s/ Houssem Daly
	 	 	Name: Houssem Daly
	 	 	Title: Associate Director Banking Products Services, US
	 	 	 
	 	By:	/s/ Darlene Arias
	 	 	Name: Darlene Arias
	 	 	Title: Director

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	Consented and agreed (for purposes of Section 5 only):
	 	 
	 	PLY GEM HOLDINGS, INC.
	 	 	 	 
	 	By: 	/s/ /s/ Shawn K. Poe
	 	 	Name: 	Shawn K. Poe
	 	 	Title:	Executive Vice President, Chief
	 	 	 	Financial Officer, Secretary and 
	 	 	 	Treasurer

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	ALENCO BUILDING PRODUCTS MANAGEMENT, L.L.C.
	 	 	 	 
	 	By: 	/s/ Shawn K. Poe
	 	 	Name: 	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	ALENCO EXTRUSION GA, L.L.C.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	ALENCO EXTRUSION MANAGEMENT, L.L.C.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	ALENCO HOLDING CORPORATION
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	ALENCO INTERESTS, L.L.C.
	 	 	 	 
	 	By: 	/s/ Shawn K. Poe
	 	 	Name: 	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	ALENCO TRANS, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	ALENCO WINDOW GA, L.L.C.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	ALUMINUM SCRAP RECYCLE, L.L.C.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	AWC ARIZONA, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	AWC HOLDING COMPANY
	 	 	 	 
	 	By: 	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and  Treasurer
	 	 	 	 
	 	FOUNDATION LABS BY PLY GEM, LLC
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name: 	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and  Treasurer
	 	 	 	 
	 	GLAZING INDUSTRIES MANAGEMENT, L.L.C.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and  Treasurer
	 	 	 	 
	 	GREAT LAKES WINDOW, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and  Treasurer

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	KROY BUILDING PRODUCTS, INC.
	 	 
	 	By: 	/s/ Shawn K. Poe
	 	 	Name: 	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	MASTIC HOME EXTERIORS, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	MW MANUFACTURERS INC.
	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	MWM HOLDING, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	NAPCO, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	NEW ALENCO EXTRUSION, LTD.
	 	 	 	 
	 	By: 	Alenco Extrusion Management, L.L.C., its general partner
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	NEW ALENCO WINDOW, LTD.
	 	 	 	 
	 	By:	Alenco Building Products Management, L.L.C., its general partner
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name: 	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	NEW GLAZING INDUSTRIES, LTD.
	 	 	 	 
	 	By:	Glazing Industries Management, L.L.C., its general partner
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	PLY GEM PACIFIC WINDOWS CORPORATION
	 	 	 
	 	By: 	/s/ Shawn K. Poe
	 	 	Name: 	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	PLY GEM SPECIALTY PRODUCTS, LLC
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	SIMEX, INC.
	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	SIMONTON BUILDING PRODUCTS LLC
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer
	 	 	 	 
	 	SIMONTON INDUSTRIES, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Vice President, Secretary and Treasurer

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	SIMONTON WINDOWS & DOORS, INC.
	 	 	 	 
	 	By: 	/s/ Shawn K. Poe
	 	 	Name: 	Shawn K. Poe
	 	 	Title: 	Vice President, Secretary and Treasurer
	 	 	 	 
	 	SIMONTON WINDOWS, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:  	Vice President, Secretary and Treasurer
	 	 	 	 
	 	VARIFORM, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:  	Vice President, Secretary and Treasurer

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	ATRIUM CORPORATION
	 	 	 	 
	 	By: 	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:  	Chief Financial Officer
	 	 	 	 
	 	ATRIUM INTERMEDIATE HOLDINGS, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:	Chief Financial Officer
	 	 	 	 
	 	ATRIUM PARENT, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:  	Chief Financial Officer
	 	 	 	 
	 	AMERICAN SCREEN MANUFACTURERS, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title: 	Chief Financial Officer
	 	 	 	 
	 	ATRIUM EXTRUSION SYSTEMS, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name:	Shawn K. Poe
	 	 	Title:  	Chief Financial Officer

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	CHAMPION WINDOW, INC.
	 	 	 	 
	 	By: 	/s/ Shawn K. Poe
	 	 	Name: 	Shawn K. Poe
	 	 	Title:  	Chief Financial Officer
	 	 	 	 
	 	THERMAL INDUSTRIES, INC.
	 	 	 	 
	 	By:	/s/ Shawn K. Poe
	 	 	Name: 	Shawn K. Poe
	 	 	Title: 	Chief Financial Officer

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]

 

    	 		 

     

    

 

	 	SILVER LINE BUILDING PRODUCTS LLC
	 	 	 	 
	 	By: 	/s/ Shawn K. Poe
	 	 	Name: 	Shawn K. Poe
	 	 	Title:	Vice President and Secretary

 

[Signature Page to Panther ABL Joinder
Agreement (Borrower Merger)]Exhibit
10.1

 

SUBLEASE
AGREEMENT

This
is an agreement to sublet office space located at 4700 Spring Street, Suite 304, La Mesa, California 91942 according to the terms
specified below.

 

The
sublessor agrees to sublet and the subtenant agrees to take the premises described below. Both parties agree to keep, perform
and fulfill the promises, conditions and agreements below:

 

1.
The sublessor is: BST Partners

 

2.
The subtenant is: Zander Therapeutics, Inc.

 

3.
The term of this sublease is month to month beginning November 5, 2018.

 

4.
The rent payable to the sublessor by the subtenant is equal to Six Thousand Dollars per month ($6,000) and is to be paid at such
time as specified in accordance with the original lease agreement between the sublessor and the lessor. Rent includes the use
of computer equipment, furnishings and supplies.

 

5.
All charges for utilities connected with premises are to be paid by the sublessor.

 

6.
Subtenant agrees to surrender and deliver to the sublessor the premises, computer equipment and all furniture and decorations
within the premises in as good a condition as they were at the beginning of the term, reasonable wear and tear excepted. The subtenant
will be liable to the sublessor for any damages occurring to the premises or the contents thereof or to the building which are
done by the subtenant.

 

7.
This agreement may be terminated at any time by either party by five days written notice from the terminating party to the other.
In the event that this agreement is terminated prior to the conclusion of a 30 day rental period (“Rent Month”) rent
due by the subtenant to the sublessor for that period shall be prorated for that Rent Month .

 

8.
In the event of any legal action concerning this sublease, the losing party shall pay to the prevailing party reasonable attorney’s
fees and court costs to be fixed by the court wherein such judgment shall be entered.

 

The
parties hereby bind themselves to this agreement by their signatures affixed below on this 16th day of November, 2018.

 

 

	BST
    Partners	 
	By:	/s/David
    R. Koos	 
	 	Its: Chairman and
    CEO	 
	 	 	 
	Zander
    Therapeutics, Inc.	 
	By:	/s/David
    R. Koos	 
	 	Its:Chairman and CEO

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