FOIA CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO CERTAIN INFORMATION IN THIS AGREEMENT. THIS INFORMATION HAS BEEN REDACTED AND DENOTED BY ASTERISKS [***]. TWENTIETH AMENDMENT TO AGREEMENT 319-I

Exhibit 4.29

FOIA CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO CERTAIN INFORMATION IN THIS AGREEMENT. THIS INFORMATION HAS BEEN REDACTED AND DENOTED BY ASTERISKS [***].

TWENTIETH AMENDMENT TO

AGREEMENT 319-I

THIS TWENTIETH AMENDMENT TO AGREEMENT NUMBER 319-I IS ENTERED INTO THIS 1^ST DAY OF MARCH, 2011 (THE “EXECUTION DATE”), BY AND BETWEEN XXXXXX NETWORK SYSTEMS, LLC, A LIMITED LIABILITY COMPANY ORGANIZED AND EXISTING UNDER THE LAWS OF THE STATE OF DELAWARE WHICH SHALL HEREINAFTER BE REFERED AS THE “CLIENT”, SUCCESSOR IN INTEREST TO XXXXXX NETWORK SYSTEMS, A DIVISION OF XXXXXX ELECTRONICS CORPORATION, AND AS THE OTHER PARTY SATELITES MEXICANOS, S.A. DE C.V., WHICH SHALL HEREINAFTER BE REFERED AS “SATMEX”, A CORPORATION ORGANIZED AND EXISTING UNDER THE LAWS OF MEXICO (TOGETHER REFERRED AS THE “PARTIES”) PURSUANT TO THE FOLLOWING:

W I T N E S S E T H

WHEREAS, on January 20, 2000, SATMEX and XXXXXX ELECTRONICS CORPORATION, through the CLIENT, executed the agreement number 319-I, hereinafter the “Agreement”;

WHEREAS, on May 16, 2000, SATMEX and XXXXXX ELECTRONICS CORPORATION, through the CLIENT executed a “First Amendment” to the Agreement, in order to substitute transponder [***] for [***] and revise Exhibit C, Initial Loading Plan;

WHEREAS, on January 1, 2001, SATMEX and XXXXXX ELECTRONICS CORPORATION, through the CLIENT executed a “Second Amendment” to the Agreement, in which XXXXXX’x obligation to take the [***] transponders changed from [***] to [***] and its use term was reduced from [***] months to [***];

WHEREAS, on March 1, 2001, SATMEX and XXXXXX ELECTRONICS CORPORATION, through the CLIENT executed a “Third Amendment” to the Agreement, in which XXXXXX’x obligation to take the [***] transponders changed from [***] to [***];

WHEREAS, on May 20, 2001, SATMEX and XXXXXX ELECTRONICS CORPORATION, through the CLIENT executed a “Fourth Amendment” to the Agreement, in which the Parties agreed to substitute transponder [***] for [***];

WHEREAS, on January 1, 2002, SATMEX and XXXXXX ELECTRONICS CORPORATION, through the CLIENT executed a “Fifth Amendment” to the Agreement, in which the Parties increased the [***] additional transponders;

WHEREAS, on February 3, 2003, SATMEX and XXXXXX ELECTRONICS CORPORATION executed a “Sixth Amendment” to the Agreement in which the Parties agreed to [***];

WHEREAS, on March 24, 2003, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed a “Seventh Amendment” to the Agreement in which, among others, the CLIENT increased [***];

WHEREAS, on May 1, 2003, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed an “Eighth Amendment” to the Agreement in which, among others, the CLIENT exercised the [***] increase option under the Second clause of the Seventh Amendment;

WHEREAS, on September 7, 2004, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed a “Ninth Amendment” to the Agreement in which, among others, the CLIENT increase [***] in Satmex 5 satellite, transponder [***];

WHEREAS, on June 14, 2005, SATMEX and Loral Skynet (“Loral Skynet”) a division of Loral Spacecom Corp. entered into an Agreement for the end of life lease of the [***] transponder on Satmex 5, hereinafter the “[***]”;

CONFIDENTIAL

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FOIA CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO CERTAIN INFORMATION IN THIS AGREEMENT. THIS INFORMATION HAS BEEN REDACTED AND DENOTED BY ASTERISKS [***].

WHEREAS, on September 7, 2005, SATMEX entered into a company’s reorganization under Mexican reorganization law called “Concurso Mercantil” according to sentence dictated by Judge Second of District in Civil Matter, in the Federal District of Mexico;

WHEREAS, on December 1, 2005, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed a “Tenth Amendment” to the Agreement in which, among others, the CLIENT [***], to result on a total capacity of [***], applying this capacity of [***] to CLIENT’S Bottom of Social Cover Program (“FONCOS”);

WHEREAS, on January 20, 2006, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed an “Eleventh Amendment” to the Agreement in which, among others, the CLIENT restructured [***] on Satmex 5 satellite and extended the term from [***] through [***];

WHEREAS, on February 1, 2006, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed a “Twelfth Amendment” to the Agreement in which, among others, the Parties agreed to [***] the term of the contracted capacity in Satmex 5 satellite, under certain [***] commitment terms; and

WHEREAS, on September 15, 2006, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed a “Thirteenth Amendment” to the Agreement in which, among others, the Parties agreed to[***] the space segment capacity on Satmex 6 satellite.

WHEREAS, on August 1^st, 2008, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed a “Fourteenth Amendment” to the Agreement in which, among others, the Parties agreed to [***].

WHEREAS, on February 1^st, 2009, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed a “Fifteenth Amendment” to the Agreement in which, the Parties agreed to [***]; to result a [***].

WHEREAS, on July 1^st, 2009, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed a “Sixteenth Amendment” to the Agreement in which, the Parties agreed to [***] in Satellite Satmex 5, [***] in order to result a [***].

WHEREAS, on October 1^st, 2009, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed a “Seventeenth Amendment” to the Agreement in which, the Parties agreed to [***] on Satmex 5 and Satmex 6 satellites.

WHEREAS, on July 1^st, 2010, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed an “Eighteenth Amendment” to the Agreement in which, the Parties agreed to [***] of SATMEX 6 satellite starting on [***].

WHEREAS, on August 1^st, 2010, SATMEX and XXXXXX ELECTRONICS CORPORATION through the CLIENT executed an “Nineteenth Amendment” to the Agreement in which, the Parties agreed to [***] in Satmex 5 satellite, transponders [***] and in Satmex 6, transponders [***], in order to result a [***].

NOW THEREFORE, in consideration of the foregoing and mutual covenants contained in this Nineteenth Amendment, the Parties agree as follows:

A G R E E M E N T

FIRST. The CLIENT and SATMEX agree to [***] the satellite capacity in Satmex 6 satellite, transponders [***] in order to result a [***].

CONFIDENTIAL

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FOIA CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO CERTAIN INFORMATION IN THIS AGREEMENT. THIS INFORMATION HAS BEEN REDACTED AND DENOTED BY ASTERISKS [***].

Therefore, the transponders related to the [***] are as follows:

a) The [***] increases as follows:

Satellite		Band		Region		Txdrs		Bandwidth MHz		Period
Satmex 5		[***]		[***]		[***]		[***]		From [***] through [***]
Satmex 6		[***]		[***]		[***]		[***]		From [***] through [***]
						[***]		[***]		From [***] through [***]
						[***]		[***]		From [***] through [***]
						[***]		[***]		From [***] through [***]

b) [***] for Satmex 5 satellite:

Satellite		Band		Txdrs		Bandwidth MHz		Period
Satmex 5		[***]		[***]		[***]		From [***], until [***]
				[***]		[***]		It was effective from [***], to [***]
				[***]		[***]		From [***] until [***]
				[***]		[***]		It was effective from [***], to [***]

c) [***] for Satmex 6 satellite:

Satellite		Band		Txdrs		Bandwidth MHz		Period
Satmex 6				[***]		[***]		From [***] until [***]
				[***]		[***]		It was effective until [***]
				[***]		[***]		It was effective from [***]
				[***]		[***]		It was effective from [***], to [***].
				[***]		[***]		From [***] until [***]

CONFIDENTIAL

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FOIA CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO CERTAIN INFORMATION IN THIS AGREEMENT. THIS INFORMATION HAS BEEN REDACTED AND DENOTED BY ASTERISKS [***].

From [***], all the SATMEX 5 transponders currently on a [***] will be part of the [***].

Note: SATMEX will not unreasonably refuse CLIENT’s request to change the assigned fixed transponder to another fixed transponder from time to time. The intent of the Parties pursuant this Clause is that CLIENT is committing to a full [***] month term for [***] transponders, but the actual assigned transponders may [***] during the term hereof.

SECOND. Both Parties agree to modify in its entirety the Third Clause of the Seventeenth Amendment, in order to set forth the current price for the capacity, which from the Execution Date of this Twentieth Amendment will be in accordance with the following table:

[***]
Satellite		MHz		Price per  MHz (USD)				USD/Month
Satmex 5		[***]		$	[***]			$	[***]
Satmex 6		[***]		$	[***]			$	[***]
Satmex 6 [***]		[***]		$	[***]			$	[***]

[***]
Satellite		MHz		Price per  MHz (USD)				USD/Month
Satmex 5		[***]		$	[***]			$	[***]
Satmex 6		[***]		$	[***]			$	[***]
TOTAL CAPACITY		[***]			—			$	[***]

THIRD. The term of this Twentieth Amendment shall commence from the Execution Date and shall terminate in accordance with the terms and conditions set forth in the Seventeenth Amendment.

FOURTH. All notices to be provided under the Amendments and/or the Agreement shall be in accordance with the terms and conditions set forth in the Seventeenth Amendment.

FIFTH. This Amendment, the underlying commercial relationship between the Parties, and all collateral matters relating thereto, shall be governed by, and construed in accordance with Section 33 of the Agreement.

SIXTH. Except as specifically amended hereby, the terms and conditions of the Agreement and its past Amendments, shall remain in full force and effect in accordance with its terms.

This Twentieth Amendment is signed in counterparts, one copy remaining in possession of each Party, as of the Execution Date first written above.

FOR THE CLIENT XXXXXX NETWORK SYSTEMS				FOR SATMEX SATÉLITES MEXICANOS, S.A. DE C.V.
/s/    Xxxxxx X. X’Xxxxx				/s/    Xxxxxxxx X. Northland
XXXXXX X. X’XXXXX VICE PRESIDENT				XXXXXXXX X. NORTHLAND GENERAL DIRECTOR

CONFIDENTIAL

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FOIA CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO CERTAIN INFORMATION IN THIS AGREEMENT. THIS INFORMATION HAS BEEN REDACTED AND DENOTED BY ASTERISKS [***].

SIGNATURE PAGE OF THE TWENTIETH AMENDMENT TO AGREEMENT NUMBER 319-I EXECUTED BY AND BETWEEN XXXXXX NETWORK SYSTEMS AND SATELITES MEXICANOS, S.A. DE C.V.

CONFIDENTIAL

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