EX-4.3



 Exhibit 4.3 

SECOND SUPPLEMENTAL INDENTURE 

Supplemental Indenture (this “Supplemental Indenture”), dated as of September 8, 2014, between Hilton International
Holding Corporation, a Delaware corporation (the “Guaranteeing Subsidiary”), a subsidiary of Hilton Worldwide Finance LLC, a Delaware limited liability company (the “Issuer”), and Wilmington Trust, National
Association, a national banking association, as trustee (the “Trustee”). 
 W I T N E S S E T H 

WHEREAS, the Issuer, Hilton Worldwide Finance Corp., a Delaware corporation (together with the Issuer, the “Issuers”), and
the Guarantors have heretofore executed and delivered to the Trustee an Indenture, dated as of October 4, 2013 (as supplemented by the First Supplemental Indenture, dated as of October 25, 2013, the “Indenture”), providing
for the issuance of an unlimited aggregate principal amount of 5.625% Senior Notes due 2021 (the “Notes”); 
 WHEREAS, the
Indenture provides that under certain circumstances the Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental indenture pursuant to which the Guaranteeing Subsidiary shall unconditionally guarantee all of the Issuers’
Obligations under the Notes and the Indenture on the terms and conditions set forth herein and under the Indenture (the “Guarantee”); and 

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture. 

NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged,
the parties mutually covenant and agree for the equal and ratable benefit of the Holders as follows: 
 (1) Capitalized Terms.
Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture. 
 (2) Agreement to
Guarantee. The Guaranteeing Subsidiary acknowledges that it has received and reviewed a copy of the Indenture and all other documents it deems necessary to review in order to enter into this Supplemental Indenture, and acknowledges and agrees to
(i) join and become a party to the Indenture as indicated by its signature below; (ii) be bound by the Indenture, as of the date hereof, as if made by, and with respect to, the Guaranteeing Subsidiary; and (iii) perform all
obligations and duties required of a Guarantor pursuant to the Indenture. The Guaranteeing Subsidiary hereby agrees to provide an unconditional Guarantee on the terms and subject to the conditions set forth in the Indenture, including, but not
limited to, Article 10 thereof. 
 (3) Execution and Delivery. The Guaranteeing Subsidiary agrees that the Guarantee shall remain in
full force and effect notwithstanding the absence of the endorsement of any notation of such Guarantee on the Notes. 
 (4) No Recourse
Against Others. No past, present or future director, officer, employee, incorporator, member, partner or stockholder of the Issuers or the Guaranteeing Subsidiary shall have any liability for any obligations of the Issuers or the Guarantors
(including the Guaranteeing Subsidiary) under the Notes, any Guarantees, the Indenture or this Supplemental Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder by accepting Notes
waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. 
 (5) Governing
Law. THIS SUPPLEMENTAL INDENTURE, AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO THIS SUPPLEMENTAL INDENTURE, WILL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 







 (6) Counterparts. The parties may sign any number of copies of this Supplemental
Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. This Supplemental Indenture may be executed in multiple counterparts which, when taken together, shall constitute one instrument. The exchange
of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmissions shall constitute effective execution and delivery of this Supplemental Indenture as to the parties hereto and may be used in lieu of the original
Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes. 

(7) Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof. 

(8) The Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this
Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Guaranteeing Subsidiary. 

(9) Benefits Acknowledged. The Guaranteeing Subsidiary’s Guarantee is subject to the terms and conditions set forth in the
Indenture. The Guaranteeing Subsidiary acknowledges that it will receive direct and indirect benefits from the financing arrangements contemplated by the Indenture and this Supplemental Indenture and that the guarantee and waivers made by it
pursuant to this Guarantee are knowingly made in contemplation of such benefits. 
 (10) Successors. All agreements of the
Guaranteeing Subsidiary in this Supplemental Indenture shall bind its Successors, except as otherwise provided in this Supplemental Indenture. All agreements of the Trustee in this Supplemental Indenture shall bind its successors. 

[Remainder of Page Left Intentionally Blank] 







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

			
	 HILTON INTERNATIONAL HOLDING CORPORATION,

as Guaranteeing Subsidiary

		
	By: 	 	/s/ Kevin Jacobs
		 	Name: Kevin Jacobs
		 	 Title: Executive Vice President and Chief

          Financial Officer



  

			
	 WILMINGTON TRUST, NATIONAL ASSOCIATION,

as Trustee

		
	By: 	 	/s/ W. Thomas Morris, II
		 	Name: W. Thomas Morris, II
		 	Title: Vice President


 [Signature Page to the Supplemental Indenture]