ASUR Promotes Development Projects in Cancun and Mayan Riviera Region

MEXICO CITY, May 22 /PRNewswire-FirstCall/ -- Grupo Aeroportuario del Sureste, S.A.B. de C.V. (NYSE: ASR; BMV: ASUR) (ASUR), the first privatized Mexican airport group and the operator of Cancun International Airport and eight other airports in southeastern Mexico, announced today that it has decided to promote the construction of a convention and exhibition center and a light rail system that would connect destinations in the Mayan Rivera to Cancun Airport.

ASUR has financed the preliminary feasibility studies for both projects. On May 17, 2007, at the opening ceremony of Terminal 3 at Cancun Airport, ASUR announced its intention to promote these projects, because it believes they will contribute to the economic development of the Cancun and Mayan Riviera region.

The company's intention is to hold a minority stake in these projects and expects the majority of the necessary investment to be undertaken by local investors.

At the present time, these two projects are at a very early stage and will require several steps before they can be initiated, including authorizations or permits from different authorities.

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 Mexican Bolsa, where it trades under the symbol ASUR, and on the NYSE in the U.S., where it trades under the symbol ASR. 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.