EX-10.5



 Exhibit 10.5 

JOINDER AGREEMENT TO THE SECURITY AGREEMENT 

November 9, 2015 
 The
undersigned, together with its successors and assigns (the “Purchaser”), in connection with the 12.0% Notes (defined below) wishes to become “Secured Parties” (together with each holder of the 12.0% Notes, collectively,
the “New Secured Parties”) under the Security Agreement, dated as of August 7, 2013 (as amended and/or supplemented, the “Security Agreement” (terms used without definition herein have the meanings assigned to
such terms by the Security Agreement)) among LSB Industries, Inc., the other Grantors party thereto and UMB Bank, n.a., as Collateral Agent (in its capacity as the collateral agent, the “Collateral Agent”) and the other Security
Documents. 
 In consideration of the foregoing, the undersigned hereby: 

(i) represents that it has full power and authority to become a party to the Security Agreement on behalf of the New Secured
Parties under the Company’s 12.0% Senior Secured Notes Due 2019 issued pursuant to that certain Note Purchase Agreement, dated as of November 9, 2015 (the “12.0% Notes”); 

(ii) acknowledges that the Purchaser has received a copy of the Security Agreement; 

(iii) irrevocably appoints and authorizes the Collateral Agent to take such action as agent on its behalf and on behalf of the
other New Secured Parties and to exercise such powers under the Security Agreement and the other Security Documents as are delegated to the Collateral Agent by the terms thereof, together with all such powers as are reasonably incidental thereto;
and 
 (iv) accepts and acknowledges the terms of the Security Agreement applicable to it and the New Secured Parties and
agrees on its own behalf and on behalf of the New Secured Parties to be bound by the terms of the Security Agreement and the other Security Documents applicable to holders of Secured Obligations, with all the rights and obligations of a Secured
Party thereunder and bound by all the provisions thereof as fully as if it had been a Secured Party on the effective date of the Security Agreement. 
 THIS
JOINDER AGREEMENT SHALL BE GOVERNED BY, AND SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK. 

[intentionally left blank] 







 In witness whereof, the parties have caused this Joinder Agreement to be duly executed as of the date first
written above. 
  

			
	LSB FUNDING LLC
		
	By:	 	 /s/ Anthony D. Minella

	Name:	 	Anthony D. Minella
	Title:	 	Manager



  
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 Acknowledged and Agreed: 

UMB BANK, N.A, as Collateral Agent 
  

			
	By:	 	 /s/ Janet Lambert

	Name:	 	Janet Lambert
	Title:	 	Vice President


  
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	 The Company and the Guarantors represent

to the Purchaser and the Collateral Agent
 that the 12.0%
Notes
 meet the requirements to qualify as Other
 Pari Passu
Lien Obligations under and as defined
 in the Security Agreement

and hereby acknowledges
 and accepts this Joinder
Agreement.

	
	LSB INDUSTRIES, INC.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	Interim CEO
	
	GUARANTORS:
	
	CEPOLK HOLDINGS, INC.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	President
	
	CHEMEX I CORP.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	President
	
	CHEMICAL PROPERTIES L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP


  
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	CHEMICAL TRANSPORT L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	CHEROKEE NITROGEN L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	President
	
	CHEROKEE NITROGEN HOLDINGS, INC.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	CLIMACOOL CORP.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	THE CLIMATE CONTROL GROUP, INC.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP


  
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	CLIMATECRAFT, INC.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	CLIMATECRAFT TECHNOLOGIES, INC.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	CLIMATE MASTER, INC.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	CONSOLIDATED INDUSTRIES L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	President
	
	EDC AG PRODUCTS COMPANY L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP


  
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	EL DORADO ACID, L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	EL DORADO ACID II, L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	EL DORADO AMMONIA L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	EL DORADO CHEMICAL COMPANY
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	President
	
	EL DORADO NITRIC L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP


  
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	EL DORADO NITROGEN, L.P.
	By El Dorado Acid, L.L.C., its general partner
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	Executive Vice President
	
	INTERNATIONAL ENVIRONMENTAL CORPORATION
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	KOAX CORP.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	LSB CAPITAL L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	LSB CHEMICAL L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP


  
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	LSB-EUROPA LIMITED
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	PRYOR CHEMICAL COMPANY
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	SUMMIT MACHINE TOOL MANUFACTURING L.L.C.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	THERMACLIME TECHNOLOGIES, INC.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP
	
	TRISON CONSTRUCTION, INC.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	EVP


  
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	XPEDIAIR, INC.
		
	By:	 	 /s/ Daniel D. Greenwell

	Name:	 	Daniel D. Greenwell
	Title:	 	President


  
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