SES-2 and Air Force Payload Complete Dynamics Test – on Track for August 2011 Launch

MCLEAN, VA - - SES WORLD SKIES U.S. Government Solutions today announced that the Commercially Hosted Infrared Payload (CHIRP) and its host spacecraft, SES-2, has completed Dynamics Testing and is on schedule for launch in August of this year.

The wide field-of-view sensor designed by Science Applications International Corporation (SAIC) and the SES-2 satellite, built by Orbital Sciences Corporation, successfully completed the required acoustics and vibration testing. These tests were conducted with the sensor fully integrated onto the spacecraft. Several functional tests were performed following the dynamics testing, including actuation of various release mechanisms, electrical testing of the sensor, and a successful software code update that was executed from SAIC’s Seal Beach, CA facility.

The satellite and integrated government payload will complete a final environmental test in late June, and is on schedule for launch in August 2011.

About SES WORLD SKIES U.S. Government Solutions www.ses-usg.com

SES WORLD SKIES U.S. Government Solutions, a subsidiary of SES WORLD SKIES, is exclusively focused on meeting the satellite communications needs of the U.S. Government. Leveraging more than three decades of experience in the government SATCOM market, SES WORLD SKIES U.S. Government Solutions offers robust and secure satellite-based communications solutions. Supported by SES’s fleet of 44 satellites offering comprehensive global coverage, SES WORLD SKIES U.S. Government Solutions offers highly reliable fixed and on-the-move capacity.

About SES

SES (Euronext Paris and Luxembourg Stock Exchange: SESG) wholly owns the market-leading satellite operators SES ASTRA and SES WORLD SKIES and participations in Ciel in Canada and QuetzSat in Mexico, as well as a strategic participation in satellite infrastructure start-up O3b Networks. SES provides outstanding satellite communications solutions via a global fleet of 44 satellites. For further information: www.ses.com.