ASUR Informs about Impact of Grupo Mexicana's Suspension of Operations

Aug 30, 2010, 09:20 ET from Grupo Aeroportuario del Sureste, S.A.B. de C.V.

MEXICO CITY, Aug. 30 /PRNewswire/ -- Grupo Aeroportuario del Sureste, S.A.B. de C.V. (NYSE: ASR; BMV: ASUR), (ASUR) the first privatized airport group in Mexico and operator of Cancun Airport and eight other airports in southeast Mexico, today announced that on August 28, 2010 at 12:00 pm, Grupo Mexicana (Compania Mexicana de Aviacion, S.A. de C.V. ("CMA"), Mexicana Inter, S.A. de C.V. and Aerovias Caribe, S.A. de C.V.) suspended operations in Mexico and the United States.

Mexicana, Aerovias Caribe and Mexicana Link which operated in all of ASUR's airports with the exception of Tapachula, represented 10.26% of the Company's revenues for the seven month period ended July 31, 2010, primarily from domestic passengers.

ASUR believes that the majority of the routes operated by Grupo Mexicana were also operated by other carriers and thus the impact from the suspension of operations will not be in the same proportion as the number of flights cancelled. However, the Company cannot assure that competing carriers will seek to increase their flight schedules or the impact that this could have on the Company's business and results of operations, which could be adversely affected if traffic does not migrate to its other airline customers.

About ASUR:

Grupo Aeroportuario del Sureste, S.A.B. de C.V. (ASUR) is a Mexican airport operator with concessions to operate, maintain and develop the airports of Cancun, Merida, Cozumel, Villahermosa, Oaxaca, Veracruz, Huatulco, Tapachula and Minatitlan in the southeast of Mexico. The Company is listed both on the NYSE in the U.S., where it trades under the symbol ASR, and on the Mexican Bolsa, where it trades under the symbol ASUR. One ADS represents ten (10) series B shares.

Some of the statements contained in this press release discuss future expectations or state other forward-looking information. Those statements are subject to risks identified in this press release and in ASUR's filings with the SEC. Actual developments could differ significantly from those contemplated in these forward-looking statements. The forward-looking information is based on various factors and was derived using numerous assumptions. Our forward-looking statements speak only as of the date they are made and, except as may be required by applicable law, we do not have an obligation to update or revise them, whether as a result of new information, future or otherwise.

SOURCE Grupo Aeroportuario del Sureste, S.A.B. de C.V.