ASUR Announces Total Passenger Traffic for July 2010 Up 16.2% Year Over Year

Aug. 5, 2010

MEXICO CITY, Aug. 5 /PRNewswire-FirstCall/ -- Grupo Aeroportuario del Sureste, S.A.B. de C.V. (NYSE: ASR; BMV: ASUR) (ASUR), today announced that total passenger traffic for July 2010 increased by 16.2% when compared to July 2009.

This announcement reflects comparisons between July 1 through July 31, 2010 and 2009. Transit and general aviation passengers are excluded.

Domestic Airport July July % Change 2009 2010 Cancun 402,458 420,157 4.4% Cozumel 7,312 2,620 -64.2% Huatulco 34,630 35,067 1.3% Merida 88,510 99,143 12.0% Minatitlan 13,152 11,905 -9.5% Oaxaca 39,526 39,258 -0.7% Tapachula 12,160 18,057 48.5% Veracruz 70,086 75,414 7.6% Villahermosa 65,203 56,863 -12.8% ------------ ------ ------ ----- Total Domestic 733,037 758,484 3.5% -------------- ------- ------- --- International Airport July July % Change 2009 2010 Cancun 609,633 808,312 32.6% Cozumel 41,759 43,560 4.3% Huatulco 1,466 2,675 82.5% Merida 9,961 11,725 17.7% Minatitlan 409 618 51.1% Oaxaca 6,946 5,544 -20.2% Tapachula 251 388 54.6% Veracruz 7,030 8,000 13.8% Villahermosa 6,174 6,187 0.2% ------------ ----- ----- --- Total International 683,629 887,009 29.8% -------------- ------- ------- ---- Total Airport July July % Change 2009 2010 Cancun 1,012,091 1,228,469 21.4% Cozumel 49,071 46,180 -5.9% Huatulco 36,096 37,742 4.6% Merida 98,471 110,868 12.6% Minatitlan 13,561 12,523 -7.7% Oaxaca 46,472 44,802 -3.6% Tapachula 12,411 18,445 48.6% Veracruz 77,116 83,414 8.2% Villahermosa 71,377 63,050 -11.7% ------------ ------ ------ ----- ASUR Total 1,416,666 1,645,493 16.2% ---------- --------- --------- ----

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.

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