EXHIBIT 4.24

JOINDER AGREEMENT

August 10, 2017

Wells Fargo Bank, National Association

625 Marquette Ave. 11^th Floor

MAC N9311-110

Minneapolis, Minnesota 55479

Ladies and Gentlemen:

Reference is made to the Security Agreement (as amended, amended and restated, supplemented or otherwise modified from time to time, the “Security Agreement”; capitalized terms used but not otherwise defined herein shall have the meanings assigned to such terms in the Security Agreement), dated as of June 8, 2011, made by Hughes Satellite Systems Corporation (formerly known as EH Holding Corporation), a Colorado corporation (the “Issuer”), the other pledgors party thereto, and Wells Fargo Bank, National Association, as collateral agent (in such capacity and together with any successors in such capacity, the “Collateral Agent”).

This Joinder Agreement supplements the Security Agreement and is delivered by the undersigned, HNS Americas, L.L.C. and HNS Americas II, L.L.C., each a Delaware limited liability company (together, the “New Pledgors”), pursuant to Section 3.6 of the Security Agreement. Each New Pledgor hereby agrees severally and not jointly to be bound as a Pledgor party to the Security Agreement by all of the terms, covenants and conditions set forth in the Security Agreement to the same extent that it would have been bound if it had been a signatory to the Security Agreement on the date of the Security Agreement. Each New Pledgor also hereby severally and not jointly agrees to be bound as a party by all of the terms, covenants and conditions applicable to it set forth in the Security Agreement to the same extent that it would have been bound if it had been a signatory to the Security Agreement on the execution date of the Security Agreement. Without limiting the generality of the foregoing, each New Pledgor hereby grants and pledges to the Collateral Agent, as collateral security for the full, prompt and complete payment and performance when due (whether at stated maturity, by acceleration or otherwise) of the Secured Obligations, a Lien on and security interest in, all of such New Pledgor’s right, title and interest in, to and under the Collateral and expressly assumes all obligations and liabilities of a Pledgor thereunder. Each New Pledgor hereby, severally and not jointly, makes each of the representations and warranties and agrees to each of the covenants applicable to the Pledgors contained in the Security Agreement.

This Joinder Agreement and any amendments, waivers, consents or supplements hereto may be executed in any number of counterparts and by different parties hereto in separate counterparts, each of which when so executed and delivered shall be deemed to be an original, but all such counterparts together shall constitute one and the same 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, WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES THEREOF.

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[Signature Page Follows]

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IN WITNESS WHEREOF, each New Pledgor has caused this Joinder Agreement to be executed and delivered by its duly authorized officer as of the date first above written.

		HNS AMERICAS, L.L.C.
		By:	/s/ Dean A. Manson
			Name: Dean A. Manson
			Title: Executive Vice President, Secretary and Treasurer
		HNS AMERICAS II, L.L.C.
AGREED TO AND ACCEPTED:
		By:	/s/ Dean A. Manson
			Name: Dean A. Manson
WELLS FARGO BANK, NATIONAL ASSOCIATION,			Title: Executive Vice President, Secretary and Treasurer
as Collateral Agent
By:	/s/ Alexander Pabon
	Name: Alexander Pabon
	Title: Assistant Vice President

[Signature Page to Joinder Agreement]