ASUR 2Q11 Passenger Traffic Up 2.89% YOY

Grupo Aeroportuario del Sureste, S.A.B. de C.V. (NYSE: ASR) the first privatized airport group in Mexico and operator of Cancun Airport and eight other airports in southeast Mexico, today announced results for the three and six-month periods ended June 30, 2011.

2Q11 Highlights(1):

EBITDA(2) increased by 10.00% to Ps.621.29 million Total passenger traffic was up 2.89% Total revenues increased by 7.07% due to increases of 5.38% in aeronautical revenues, 9.34% in non-aeronautical revenues and 9.39% in construction services revenues Commercial revenues per passenger increased by 8.26% to Ps.66.22 Operating profit rose by 10.69% EBITDA margin increased to 56.76% from 55.25% in 2Q10