ASUR 2Q15 PASSENGER TRAFFIC UP 14.27% YOY

In Mexico ASUR Lic. Adolfo Castro (52) 5552-84-04-08 acastro@asur.com.mx In the U.S. MBS Value Partners Susan Borinelli (646) 330-5907 susan.borinelli@mbsvalue.com For Immediate Release ASUR 2Q15 PASSENGER TRAFFIC UP 14.27% YOY México D.F., July 23, 2015, 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 Cancún Airport and eight other airports in southeast Mexico, as well as a 50% JV partner in Aerostar Airport Holdings, LLC, operator of the Luis Muñoz Marín International Airport in San Juan, Puerto Rico, today announced results for the three- and six-month periods ended June 30, 2015. 2Q15 Highlights 1 : EBITDA 2 increased by 29.24% to Ps.1,129.26 million Total passenger traffic was up 14.27% Total revenues increased by 58.17%, reflecting increases of 21.21% in aeronautical revenues, 26.52% in non-aeronautical revenues, and 1,058.67% in construction services revenues Commercial revenues per passenger increased by 11.94% to Ps.81.75 Operating profit increased by 33.08% EBITDA margin declined to 53.26% from 65.18% in 2Q14 1. Unless otherwise stated, all financial figures discussed in this announcement are unaudited, prepared in accordance with International Financial Reporting Standards (IFRS) and represent comparisons between the three- and six-month periods ended June 30, 2015, and the equivalent three- and six-month periods ended June 30, 2014. Results are expressed in pesos. Tables state figures in thousands of pesos, unless otherwise noted. Passenger figures exclude transit and general aviation passengers. Commercial revenues include revenues from non-permanent ground transportation and parking lots. All U.S. dollar figures are calculated at the exchange rate of US$1.00 = Ps.15.6854. 2. EBITDA means net income before: provision for taxes, deferred taxes, profit sharing, nonordinary items, participation in the results of associates, comprehensive financing cost and depreciation and amortization. EBITDA should not be considered as an alternative to net income, as an indicator of our operating performance or as an alternative to cash flow as an indicator of liquidity. Our management believes that EBITDA provides a useful measure that is widely used by investors and analysts to evaluate our performance and compare it with other companies. EBITDA is not defined under U.S. GAAP or IFRS and may be calculated differently by different companies. ASUR 2Q15, Page 1 of 18

Passenger Traffic Total passenger traffic for 2Q15 increased year-over-year by 14.27%, reflecting increases of 14.17% in domestic passenger traffic and 14.34% in international passenger traffic. The 14.17% growth in domestic passenger traffic was driven by increases at all of ASUR s airports. The 14.34% growth in international passenger traffic resulted mainly from an increase of 15.30% in traffic at Cancun airport. Passenger traffic for 1H15 increased by 13.30%, reflecting increases of 15.26% in domestic passenger traffic and 12.00% in international passenger traffic. The 15.26% growth in domestic passenger traffic in 1H15 was driven by increases at all of ASUR s airports. The 12.00% growth in international passenger traffic resulted primarily from an increase at Cancun airport. Table I: Domestic Passengers (in thousands) % Airport 2Q14 2Q15 Change 1H14 1H15 % Change Cancún 1,390.5 1,512.9 8.80 2,416.5 2,684.1 11.07 Cozumel 20.7 24.7 19.32 36.1 46.1 27.70 Huatulco 98.2 129.7 32.08 185.7 245.9 32.42 Mérida 318.2 374.6 17.72 620.1 714.1 15.16 Minatitlán 55.8 63.2 13.26 107.9 118.4 9.73 Oaxaca 110.6 139.8 26.40 217.4 272.3 25.25 Tapachula 34.8 60.8 74.71 75.5 114.8 52.05 Veracruz 273.0 299.5 9.71 495.9 563.4 13.61 Villahermosa 251.7 310.1 23.20 483.9 587.9 21.49 TOTAL 2,553.5 2,915.3 14.17 4,639.0 5,347.0 15.26 Note: Passenger figures exclude transit and general aviation passengers. Table II: International Passengers (in thousands) Airport 2Q14 2Q15 % Change 1H14 1H15 % Change Cancún 2,994.4 3,452.4 15.30 6,483.9 7,320.0 12.90 Cozumel 113.6 121.8 7.22 266.0 276.3 3.87 Huatulco 13.5 10.8 (20.00) 75.1 76.0 1.20 Mérida 27.7 28.0 1.08 58.8 57.2 (2.72) Minatitlán 2.1 2.4 14.29 4.0 4.5 12.50 Oaxaca 13.5 14.4 6.67 29.7 31.7 6.73 Tapachula 2.9 2.9 0.00 6.0 5.6 (6.67) Veracruz 21.7 20.4 (5.99) 42.2 39.6 (6.16) Villahermosa 15.8 11.9 (24.68) 30.7 24.9 (18.89) TOTAL 3,205.2 3,664.9 14.34 6,996.4 7,835.8 12.00 Note: Passenger figures exclude transit and general aviation passengers. ASUR 2Q15, Page 2 of 18

Table III: Total Passengers (in thousands) Airport 2Q14 2Q15 % Change 1H14 1H15 % Change Cancún 4,384.9 4,965.3 13.24 8,900.4 10,004.1 12.40 Cozumel 134.3 146.5 9.08 302.1 322.4 6.72 Huatulco 111.7 140.5 25.78 260.8 321.9 23.43 Mérida 345.9 402.6 16.39 678.9 771.3 13.61 Minatitlán 57.9 65.6 13.30 111.9 122.9 9.83 Oaxaca 124.1 154.2 24.25 247.1 304.0 23.03 Tapachula 37.7 63.7 68.97 81.5 120.4 47.73 Veracruz 294.7 319.9 8.55 538.1 603.0 12.06 Villahermosa 267.5 322.0 20.37 514.6 612.8 19.08 TOTAL 5,758.7 6,580.2 14.27 11,635.4 13,182.8 13.30 Note: Passenger figures exclude transit and general aviation passengers. Consolidated Results for 2Q15 Total revenues for 2Q15 rose year-over-year by 58.17% to Ps.2,120.43 million. This was mainly due to increases of: 21.21% in revenues from aeronautical services, mainly as a result of the 14.27% increase in passenger traffic; 26.52% in revenues from non-aeronautical services, principally reflecting the 27.81% increase in commercial revenues detailed below. 1,058.67% in revenues from construction services that resulted from higher capital expenditures and other investments in concessioned assets during the period. ASUR classifies commercial revenues as those derived from the following activities: duty-free stores, car rentals, retail operations, banking and currency exchange services, advertising, teleservices, non-permanent ground transportation, food and beverage, and parking lot fees. Commercial revenues increased by 27.81% year-over-year during 2Q15, principally due to a 14.27% increase in total passenger traffic. There were increases in revenues from the following activities: 29.51% in retail operations; 25.65% in duty free; 26.18% in food and beverage; 22.00% in car rental revenues; 29.35% in other revenue; ASUR 2Q15, Page 3 of 18

36.28% in advertising. 28.05% in parking lot fees; 32.57% in banking and currency exchange services; 23.26% in ground transportation; and 24.16% in teleservices. Retail and Other Commercial Space Opened since June 30, 2015 Business Name Type Opening Date Cancun MOBO Retail July 2014 Tax Free Tax Paid September 2014 Abito Retail November 2014 Banamex (4 ATMs) Banking November 2014 AY GUEY Retail December 2014 Cinco Soles Retail December 2014 Kipling Retail December 2014 Lacoste Retail December 2014 MOBO Retail December 2014 Sunglass Hut Retail December 2014 Prisonart Retail February 2015 Cinco Soles Retail February 2015 Banamex (1 ATM) Banking February 2015 Merida El Mestizo Retail August 2014 Banamex Banking October 2014 Salon VIP Business Lounge October 2014 Veracruz Banamex Banking November 2014 Villahermosa Salon VIP Business Lounge October 2014 Banamex Banking November 2014 Cozumel Secure Wrap Retail December 2014 Banamex Banking December 2014 NLG Services Business Lounge December 2014 Oaxaca Banamex Banking December 2014 Alamo Car Rental December 2014 ASUR 2Q15, Page 4 of 18

Business Name Type Opening Date Huatulco Banamex Banking October 2014 Minatitlan Salon VIP Business Lounge February 2015 * Only includes new stores opened during the period and excludes remodelings or contract renewals. Table IV: Commercial Revenues per Passenger for 2Q15 2Q14 2Q15 % Change Total Passengers ( 000) 5,803 6,626 14.18 Total Commercial Revenues 423,813 541,689 27.81 Commercial revenues from direct 101,285 101,739 0.45 operations (1) Commercial revenues excluding direct operations 322,528 439,950 36.41 2Q14 2Q15 % Change Total Commercial Revenue per 73.03 81.75 11.94 Passenger Commercial revenue from direct 17.45 15.35 (12.03) operations per passenger (1) Commercial revenue per passenger (excluding direct operations) 55.58 66.40 19.47 Note: For purposes of this table, approximately 44,610 and 45,500 transit and general aviation passengers are included in 2Q14 and 2Q15, respectively. (1) Revenues from direct commercial operations represent ASUR s operation of convenience stores in airports, as well as the direct sale of advertising space until April 30, 2015, date in which it was concessioned to a third party. Construction revenues and expenses. ASUR is required by IFRIC 12 to include in its income statement an income line reflecting the income from construction or improvements to concessioned assets made during the relevant period. During 2Q15, ASUR recognized Ps.524.62 million in revenues from Construction Services, a year-on-year increase of 1,058.67% reflecting higher capital expenditures in concessioned assets. The same amount is recognized under the expense line Construction Costs because ASUR hires third parties to provide construction services. Because equal amounts of Construction Revenues and Construction Expenses have been included in ASUR's income statement as a result of the application of IFRIC 12, the amount of Construction Revenues does not have an impact on EBITDA, but it does have an impact on EBITDA margin, as the increase in revenues that results from an increase in Construction Revenues does not result in a corresponding increase in EBITDA. ASUR 2Q15, Page 5 of 18

Total operating costs and expenses for 2Q15 rose 91.10% year-overyear, primarily due to the following increases: 1,058.67% in construction costs, reflecting higher levels of capital improvements made to concessioned assets during the period; 6.18% in cost of services, mainly due to higher professional and software license fees and maintenance expenses as well as the increase in cost of sales derived from the convenience stores directly operated by ASUR. 21.08% in concession fees paid to the Mexican government, mainly due to an increase in regulated revenues (a factor in the calculation of the fee); 3.27% in depreciation and amortization, resulting mainly from capitalized investments; 29.24% in the technical assistance fee paid to ITA, reflecting the increase in EBITDA for the quarter (a factor in the calculation of the fee); and 4.95% in administrative expenses, principally reflecting higher travel, marketing and office lease expenses. Table V: Operating Costs and Expenses for 2Q15 2Q14 2Q15 % Change Cost of Services 270,993 287,745 6.18 Construction Costs 45,278 524,624 1,058.67 Administrative 45,098 47,329 4.95 Technical Assistance 46,036 59,495 29.24 Concession Fees 59,441 71,973 21.08 Depreciation and Amortization 112,721 116,412 3.27 TOTAL 579,567 1,107,578 91.10 Operating margin for the quarter was 47.77% compared with 56.77% in 2Q14, reflecting increases of 91.10% in expenses and 58.17% in revenues. Comprehensive Financing Gain (Loss) for 2Q15 was a Ps.16.60 million loss, compared to an Ps.11.01 million gain in 2Q14. This was mainly the result of a Ps.30.5 million foreign exchange loss in 2Q15 due to the 2.04% depreciation of the Mexican peso against the U.S. dollar on ASUR s foreign currency net liability position as compared to an appreciation of 0.93% in 2Q14 that resulted in a Ps.7.34 million gain. ASUR 2Q15, Page 6 of 18

In addition, in 2Q15 ASUR recognized an Ps.11.41 million gain in stockholders equity resulting from the translation effect of Aerostar s financial statements (which are denominated in U.S. dollars), in connection with the valuation of the stockholders equity derived from the depreciation of the peso against the U.S. dollar. Table VI: Comprehensive Financing Result (Cost) 2Q14 2Q15 Change % Change Interest income 25,018 38,187 13,169 52.64 Interest expenses (21,349) (24,293) (2,944) 13.79 Foreign exchange gain (loss), net 7,343 (30,496) (37,839) (515.31) Total 11,012 (16,602) (27,614) (250.76) Income (Loss) from Equity Investment in Joint Venture During 2Q15, our equity in the income of Aerostar, our joint venture with Highstar Capital IV and its affiliated funds, was a net gain of Ps.21.68 million. In addition, ASUR recorded a Ps.11.41 million gain in stockholders equity resulting from the translation effect of Aerostar s financial statements (which are denominated in U.S. dollars), in connection with the valuation of the shareholders equity derived from the depreciation of the peso against the U.S. dollar in 2Q15. In 2Q14, ASUR reported a net gain of Ps.21.89 million from our equity in the income of Aerostar and a Ps.9.07 million loss in stockholders equity resulting from the translation effect of Aerostar s financial statements in connection with the valuation of the shareholders equity derived from the appreciation of the peso against the U.S. dollar. During 2Q15, total passenger traffic at SJU airport increased 0.86% to 2,279,814 from 2,260,472 in 2Q14. Income Taxes On January 1, 2014, a comprehensive Income Tax Law reform package entered into effect, repealing the IETU tax and causing the cancellation of deferred IETU. As a result, ASUR completed a financial valuation of its subsidiaries that were subject to this tax and now must recognize a deferred income tax. Income taxes for 2Q15 increased by Ps.45.81 million year-over-year, principally due to the following factors: A Ps.63.41 million increase in the provision for income taxes, reflecting a higher taxable income base at the Veracruz and Cancun airports. ASUR 2Q15, Page 7 of 18

A Ps.17.60 million decline in deferred income taxes reflecting the recognition of the effects of inflation in the fiscal tax balance. Net income for 2Q15 increased by 32.11% to Ps.732.90 million from Ps.554.75 million in 2Q14. Earnings per common share for the quarter were Ps.2.4430, or earnings per ADS (EPADS) of US$1.5575 (one ADS represents ten series B common shares). This compares with earnings per share of Ps.1.8492, or EPADS of US$1.1789 for the same period last year. This principally reflects the 14.27% increase in passenger traffic. During 2Q15, ASUR reported a Ps.21.68 million gain corresponding to its participation in Aerostar, the joint venture to operate SJU airport, compared to a gain of Ps.21.89 million in the same period in 2014. Table VII: Summary of Consolidated Results for 2Q15 2Q14 2Q15 % Change Total Revenues 1,340,630 2,120,427 58.17 Aeronautical Services 811,884 984,123 21.21 Non-Aeronautical Services 483,468 611,680 26.52 Commercial Revenues 423,813 541,689 27.81 Construction Services 45,278 524,624 1,058.67 Operating Profit 761,063 1,012,849 33.08 Operating Margin % 56.77% 47.77% (15.85%) EBITDA 873,784 1,129,261 29.24 EBITDA Margin % 65.18% 53.26% (18.29%) Net Income 554,746 732,896 32.11 Earnings per Share 1.8492 2.4430 32.11 Earnings per ADS in US$ 1.1789 1.5575 32.11 Note: U.S. dollar figures are calculated at the exchange rate of US$1 = Ps. 15.6854. Consolidated Results for 1H15 Total revenues for 1H15 increased year-over-year by 43.81% to Ps.3,917.03 million, mainly due to the following increases: 19.08% in revenues from aeronautical services as a result of the 13.30% increase in passenger traffic during the period; 22.52% in revenues from non-aeronautical services, principally as a result of the 23.26% increase in commercial revenues detailed below; and 981.41% in construction services due to higher capital investments made during the period. ASUR 2Q15, Page 8 of 18

Commercial revenues for 1H15 rose by 23.26% year-over-year, principally as a result of revenue increases in the following areas: 25.67% in retail operations; 16.42% in duty-free stores; 25.48% in food and beverage; 20.69% in car rentals; 33.84% in other income; 25.39% in advertising; 24.27% in parking lot fees; 23.07% in banking and currency exchange services; 24.65% in ground transportation services; and 29.22% in teleservices. Table VIII: Commercial Revenues per Passenger for 1H15 ( 1H14 1H15 % Change Total Passengers *( 000) 11,729 13,286 13.28 Total Commercial Revenues 885,735 1,091,754 23.26 Commercial revenues from direct 209,625 228,647 9.07 operations (1) Commercial revenues excluding direct operations 676,110 863,107 27.66 1H14 1H15 % Change Total Commercial Revenue per 75.52 82.17 8.82 Passenger Commercial revenue from direct 17.87 17.21 (3.69) operations per passenger (1) Commercial revenue per passenger (excluding direct operations) 57.65 64.96 12.68 * For purposes of this table, approximately 93,500 and 103,000 transit and general aviation passengers are included for 1H14 and 1H15, respectively. (1) Revenues from direct commercial operations represent ASUR s operation of convenience stores in airports, as well as the direct sale of advertising space until April 30, 2015, date in which it was concessioned to a third party. Total operating costs and expenses for 1H15 rose by 66.86% year-onyear, primarily due to the following increases: 981.41% in construction costs, reflecting higher committed improvements made to concessioned assets during the period; ASUR 2Q15, Page 9 of 18

5.98% in cost of services, principally due to software license and professional fees, higher maintenance and security and office lease expenses. The increase also reflects higher cost of sales derived from the increase in sales at convenience stores directly operated by ASUR; 19.92% in concession fees, mainly due to the increase in regulated revenues (a factor in the calculation of the fee); 24.52% in technical assistance costs, reflecting the corresponding increase in EBITDA during the period; 2.83% in depreciation and amortization, resulting mainly from higher capitalized investments; and 17.31% in administrative expenses, principally lower professional fees in 1H14 resulting from the reversal of the expense provision in connection with the Master Development Plan. Higher marketing expenses in connection with participation at international fairs and office leases also contributed to the increase. Table IX: Operating Costs and Expenses for 1H15 1H14 1H15 % Change Cost of Services 531,132 562,895 5.98 Construction Costs 66,391 717,956 981.41 Administrative 84,135 98,696 17.31 Technical Assistance 96,116 119,682 24.52 Concession Fees 121,179 145,316 19.92 Depreciation and Amortization 225,756 232,137 2.83 TOTAL 1,124,709 1,876,682 66.86 Operating margin was 52.09% in 1H15 compared with 58.71% in 1H14. This was mainly the result of the 66.86% increase in operating expenses which more than offset the 43.81% increase in revenues for the period. Comprehensive Financing Gain (Loss) for 1H15 was a Ps.35.09 million loss, compared to a Ps.13.51 million gain in 1H14, principally due to a Ps.65.67 million foreign exchange loss in 1H15 resulting from the impact of the 6.40% depreciation of the Mexican peso against the U.S. dollar during the period on ASUR s foreign currency net liability position. This compares with a Ps.6.94 million foreign exchange gain in 1H14 resulting from the impact of the 0.86% appreciation of the Mexican peso against the U.S. dollar during the period on ASUR s foreign currency net liability position. ASUR 2Q15, Page 10 of 18

In addition, ASUR recorded a Ps.105.94 million gain in stockholders equity resulting from the translation effect of Aerostar s financial statements (which are denominated in U.S. dollars), in connection with the valuation of the capital stock derived from the depreciation of the peso against the U.S. dollar. Interest income increased by Ps.27.96 million year-on-year reflecting the higher cash balance during the period. Interest expense increased by Ps.3.94 million, reflecting the disbursement of loans secured from BBVA Bancomer and Merrill Lynch in February 2013. Table X: Comprehensive Financing Gain (Loss) 1H14 1H15 Change % Change Interest income 47,400 75,356 27,955 58.98 Interest expenses (40,832) (44,768) (3,936) 9.64 Foreign exchange gain (loss), net 6,941 (65,674) (72,615) (1,046.11) Total 13,510 (35,086) (48,596) (359.70) Income (Loss) from Equity Investment in Joint Venture. During 1H15, our equity in the income of Aerostar was a net income of Ps.54.21 million. In addition, ASUR recorded a Ps.105.94 million gain in stockholders equity resulting from the translation effect of Aerostar s financial statements (which are denominated in U.S. dollars), in connection with the valuation of the capital stock derived from the 6.40% depreciation of the peso against the U.S. dollar. In 1H14, ASUR reported a net gain of Ps.32.44 million from its equity in the income of Aerostar and a Ps.24.08 million gain in stockholders equity in connection with the valuation of the capital stock derived from the appreciation of the peso against the U.S. dollar. Total passenger traffic at SJU during 1H15 increased 0.90% to 4,459,210 passengers from 4,419,638 during 1H14. Net income for 1H15 increased by 24.22% to Ps.1,477.16 million. Earnings per common share for the six-month period were Ps.4.9239 and earnings per ADS (EPADS) of US$3.1391 (one ADS represents ten series B common shares). This compares with Ps.3.9637 per share and EPADS of US$2.5270 for 1H14. Net income for the year benefitted from the 13.30% increase in passenger traffic and reflects the Ps.54.21 million of equity in income corresponding to ASUR s participation in Aerostar, the joint venture to operate SJU airport, compared to a net gain of Ps.32.44 million in 1H14. ASUR 2Q15, Page 11 of 18

Table XI: Summary of Consolidated Results for 1H15 1H14 1H15 Change Total Revenues 2,723,765 3,917,028 43.81 Aeronautical Services 1,651,106 1,966,171 19.08 Non-Aeronautical Services 1,006,268 1,232,901 22.52 Commercial Revenues 885,735 1,091,754 23.26 Construction Services 66,391 717,956 981.41 Operating Profit 1,599,056 2,040,346 27.60 Operating Margin % 58.71% 52.09% (11.27%) EBITDA 1,824,812 2,272,483 24.53 EBITDA Margin % 67.00% 58.02% (13.40%) Net Income 1,189,120 1,477,158 24.22 Earnings per Share 3.9637 4.9239 24.22 Earnings per ADS in US$ 2.5270 3.1391 24.22 Note: U.S. dollar figures are calculated at the exchange rate of US$1 = Ps.15.6854 Tariff Regulation The Mexican Ministry of Communications and Transportation regulates the majority of ASUR s activities by setting maximum rates, which represent the maximum possible revenues allowed per traffic unit at each airport. ASUR s regulated revenues for 1H15 were Ps.2,024.96 million, resulting in an annual average tariff per workload unit of Ps.150.27. ASUR s regulated revenues accounted for approximately 62.05% of total income for the period. Balance Sheet On June 30, 2015, airport concessions represented 69.00% of the Company s total assets, with current assets representing 15.44% of the Company s total assets and other assets representing 15.56%. Cash and cash equivalents on June 30, 2015, were Ps.3,172.23 million, an 11.10% increase from the Ps.2,855.36 million in cash and cash equivalents recorded on December 31, 2014. Shareholders equity at the close of 2Q15 was Ps.18,804.19 million and total liabilities were Ps.5,587.68 million, representing 77.09% and 22.91% of total assets, respectively. Deferred liabilities represented 28.86% of the Company s total liabilities. Total bank debt at June 30, 2015 was Ps.3,390.76 million, including Ps.18.40 million in accrued interest and commissions. ASUR 2Q15, Page 12 of 18

On July 17, 2015, ASUR s Cancun airport subsidiary agreed to amend and restate the agreement governing its bank loans of US$107.5 million from each of BBVA Bancomer and Bank of America for a total of U.S.$215.0 million. Pursuant to the amended and restated agreement, the loans, which previously matured in 2018, will instead mature in 2022, and will amortize semi-annually from 2018 through 2022, pursuant to an agreed schedule. In addition, Bank of America and BBVA Bancomer committed to extend additional loans to Cancun airport for US$42.5 million each, for a total of US$85.0 million, which Cancun airport may draw upon until September 2015 and which will amortize on the same schedule as the existing loans. The loans are denominated in U.S. dollars and charge interest at a rate equal to LIBOR plus 1.85%. The loans are guaranteed by Grupo Aerportuario del Sureste, S.A.B. de C.V. and were originally used to finance ASUR s capital contribution and subordinated shareholder loan to Aerostar. Capital Expenditures During 2Q15, ASUR made investments of Ps.389.49 million as part of ASUR s ongoing plan to modernize its airports pursuant to its master development plans. During 1H15, capital expenditures totaled Ps.543.13 million. 2Q15 Earnings Conference Call Day: Friday, July 24, 2015 Time: 10:00 AM US ET; 9:00 AM Mexico City time Dial-in number: 1-888-312-9841 (US & Canada) and 1-719-457-2667 (International & Mexico) Access Code: 3100902 Please dial in 10 minutes before the scheduled start time. Replay: Friday, July 24, 2015 at 1:00 PM US ET, ending at midnight US ET on Friday, July 31, 2015. Dial-in number: 1-877- 870-5176 (US & Canada); 1-858-384-5517 (International & Mexico). Access Code: 3100902 Analyst Coverage In accordance with Mexican Stock Exchange Internal Rules Article 4.033.01, ASUR informs that the stock is covered by the following brokerdealers: Actinver Casa de Bolsa, Barclays, BBVA Bancomer, BofA Merril Lynch, Citi Investment Research, Credit Suisse, Deutsche Bank, Grupo Bursatil ASUR 2Q15, Page 13 of 18

Mexicano, Grupo Financiero Interacciones, Grupo Financiero Monex, HSBC, Intercam Casa de Bolsa, Itau BBA, INVEX, JP Morgan, Morgan Stanley, Morningstar, Santander Investment, Scotia Capital, UBS Casa de Bolsa and Vector. Please note that any opinions, estimates or forecasts regarding the performance of ASUR issued by these analysts reflect their own views, and therefore do not represent the opinions, estimates or forecasts of ASUR or its management. Although ASUR may refer to or distribute such statements, this does not imply that ASUR agrees with or endorses any information, conclusions or recommendations included therein. 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 Cancún, Mérida, Cozumel, Villahermosa, Oaxaca, Veracruz, Huatulco, Tapachula and Minatitlán in the southeast of México, as well as a 50% JV partner in Aerostar Airport Holdings, LLC, operator of the Luis Muñoz Marín International Airport of Puerto Rico. 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. # # # TABLES TO FOLLOW # # # ASUR 2Q15, Page 14 of 18

Grupo Aeroportuario del Sureste, S.A.B. de C.V. Operating Results per Airport Thousands of Mexican pesos Item Cancún (1) 2Q 2014 2Q 2014 Per Workload Unit 2Q 2015 2Q 2015 Per Workload Unit 1H 2014 1H 2014 Per Workload Unit 1H 2015 1H 2015 Per Workload Unit Aeronautical Revenues 614,833 138.3 728,397 144.7 1,250,580 138.5 1,463,175 144.2 Non-Aeronautical Revenues 430,519 96.8 556,103 110.5 902,529 100.0 1,115,214 109.9 Construction Services Revenues 6,863 1.5 382,874 76.1 22,108 2.4 490,580 48.4 Total Revenues 1,052,215 236.6 1,667,374 331.3 2,175,217 240.9 3,068,969 302.5 Operating Profit 558,826 125.7 726,659 144.4 1,251,684 138.6 1,545,519 152.3 EBITDA 629,234 141.5 797,735 158.5 1,391,981 154.2 1,687,449 166.3 Mérida Aeronautical Revenues 53,581 136.0 65,716 145.4 105,656 136.7 125,568 144.2 Non-Aeronautical Revenues 14,756 37.5 16,377 36.2 29,514 38.2 34,154 39.2 Construction Services Revenues 3,467 8.8 22,609 50.0 3,467 4.5 50,204 57.6 Other (2) 7-5 - 15-12 - Total Revenues 71,811 182.3 104,707 231.7 138,652 179.4 209,938 241.0 Operating Profit 18,895 48.0 31,859 70.5 40,944 53.0 62,880 72.2 EBITDA 27,743 70.4 40,827 90.3 58,602 75.8 80,815 92.8 Villahermosa Aeronautical Revenues 34,304 123.8 43,912 131.9 66,423 124.4 82,763 130.7 Non-Aeronautical Revenues 12,263 44.3 13,367 40.1 23,505 44.0 27,447 43.4 Construction Services Revenues 4,668 16.9 13,097 39.3 6,813 12.8 23,858 37.7 Other (2) 19 0.1 17 0.1 39 0.1 35 0.1 Total Revenues 51,254 185.0 70,393 211.4 96,780 181.2 134,103 211.9 Operating Profit 16,831 60.8 25,159 75.6 33,048 61.9 49,530 78.2 EBITDA 21,882 79.0 31,649 95.0 44,387 83.1 62,494 98.7 Other Airports (3) Aeronautical Revenues 109,166 140.9 146,098 161.1 228,447 145.3 294,665 161.3 Non-Aeronautical Revenues 25,930 33.5 25,833 28.5 50,720 32.3 56,086 30.7 Construction Services Revenues 30,280 39.1 106,044 116.9 34,003 21.6 153,314 83.9 Other (2) 15,068 19.4 13,040 14.4 15,137 9.6 13,088 7.2 Total Revenues 180,444 232.8 291,015 320.9 328,307 208.8 517,153 283.1 Operating Profit 41,893 54.1 70,705 78.0 81,961 52.1 140,279 76.8 EBITDA 69,599 89.8 100,038 110.3 137,008 87.2 198,441 108.6 Holding & Service companies (4) Construction Services Revenues - - - - - - - - Other (2) 329,538-372,370-574,451-651,763 - Total Revenues 329,538-372,370-574,451-651,763 - Operating Profit 124,618-158,467-191,419-242,138 - EBITDA 125,326-159,012-192,834-243,284 - Consolidation Adjustment Consolidation Adjustment (344,632) - (385,432) - (589,642) - (664,898) - Group Aeronautical Revenues 811,884 137.8 984,123 146.3 1,651,106 138.7 1,966,171 145.9 Non-Aeronautical Revenues 483,468 82.0 611,680 91.0 1,006,268 84.5 1,232,901 91.5 Construction Services Revenues 45,278 7.7 524,624 78.0 66,391 5.6 717,956 53.3 Total Revenues 1,340,630 227.5 2,120,427 315.3 2,723,765 228.7 3,917,028 290.7 Operating Profit 761,063 129.1 1,012,849 150.6 1,599,056 134.3 2,040,346 151.4 EBITDA 873,784 148.3 1,129,261 167.9 1,824,812 153.2 2,272,483 168.6 (1) Reflects the results of operations of Cancun Airport and two Cancun Airport Services subsidiaries on a consolidated basis. (2) Reflects revenues under intercompany agreements which are eliminated in the consolidation adjustment. (3) Reflects the results of operations of our airports located in Cozumel, Huatulco, Minatitlan, Oaxaca, Tapachula and Veracruz. (4) Reflects the results of operations of our parent holding company and our services subsidiaries. Because none of these entities hold the concessions for our airports, we do not report workload unit data for theses entities. ASUR 2Q15, Page 15 of 18

Grupo Aeroportuario del Sureste, S.A.B. de C.V. Consolidated Balance Sheet as of June 30, 2015 and 2014 Thousands of Mexican pesos I t e m June 2015 December 2014 Change % Change A s s e t s Current Assets Cash and Cash Equivalents 3,172,234 2,855,362 316,872 11.10 Accounts Receivable, net 334,774 449,808 (115,034) (25.57) Recoverable Taxes and Other Current Assets 259,684 598,746 (339,062) (56.63) Total Current Assets 3,766,692 3,903,916 (137,224) (3.52) Non Current Assets Machinery, Furniture and Equipment, net 321,185 322,613 (1,428) (0.44) Airports Concessions, net 16,828,464 16,509,356 319,108 1.93 Accounts Receivable from Joint Venture 1,694,362 1,567,608 126,754 8.09 Investment in Joint Venture Accounted by the Equity Method 1,781,169 1,621,028 160,141 9.88 Total Assets 24,391,872 23,924,521 467,351 1.95 Liabilities and Stockholders' Equity Current Liabilities Trade Accounts Payable 18,963 13,060 5,903 45.20 Bank Loans 113,503 29,945 83,558 279.04 Accrued Expenses and Others Payables 565,408 358,638 206,770 57.65 Total Current Liabilities 697,874 401,643 296,231 73.75 Long Term Liabilities Bank Loans 3,277,260 3,157,357 119,903 3.80 Deferred Income Taxes 1,603,809 1,606,245 (2,436) (0.15) Deferred Flat Rate Business Tax - - - - Employee Benefits 8,739 8,180 559 6.83 Total Long Term Liabilities 4,889,808 4,771,782 118,026 2.47 Total Liabilities 5,587,682 5,173,425 414,257 8.01 Stockholders' Equity Capital Stock 7,767,276 7,767,276 - - Legal Reserve 747,077 618,418 128,659 20.80 Share Repurchase Reserve - - - - Net Income for the Period 1,477,158 2,283,724 (806,566) (35.32) Cumulative Effect of Conversion of Foreign Currency 325,965 220,029 105,936 48.15 IFRS Conversion Adjustment 5,045,078 5,045,078 - - Retained Earnings 3,441,636 2,816,571 625,065 22.19 Total Stockholders' Equity 18,804,190 18,751,096 53,094 0.28 Total Liabilities and Stockholders' Equity 24,391,872 23,924,521 467,351 1.95 ASUR 2Q15, Page 16 of 18

Grupo Aeroportuario del Sureste, S.A.B. de C.V. Consolidated Statement of Income from January 1 to June 30, 2015 and 2014 Thousands of Mexican pesos I t e m 1H 1H % 2Q 2Q % 2014 2015 Change 2014 2015 Change Revenues Aeronautical Services 1,651,106 1,966,171 19.08 811,884 984,123 21.21 Non-Aeronautical Services 1,006,268 1,232,901 22.52 483,468 611,680 26.52 Construction Services 66,391 717,956 981.41 45,278 524,624 1,058.67 Total Revenues 2,723,765 3,917,028 43.81 1,340,630 2,120,427 58.17 Operating Expenses Cost of Services 531,132 562,895 5.98 270,993 287,745 6.18 Cost of Construction 66,391 717,956 981.41 45,278 524,624 1,058.67 General and Administrative Expenses 84,135 98,696 17.31 45,098 47,329 4.95 Technical Assistance 96,116 119,682 24.52 46,036 59,495 29.24 Concession Fee 121,179 145,316 19.92 59,441 71,973 21.08 Depreciation and Amortization 225,756 232,137 2.83 112,721 116,412 3.27 Total Operating Expenses 1,124,709 1,876,682 66.86 579,567 1,107,578 91.10 Operating Income 1,599,056 2,040,346 27.60 761,063 1,012,849 33.08 Comprehensive Financing Cost 13,510 (35,086) (359.70) 11,012 (16,602) (250.76) Income from results of Joint Venture Accounted by the Equity Method 32,442 54,205 67.08 21,892 21,681 (0.96) Non-Ordinary Item Non-Ordinary Item - - - - - - Income Before Income Taxes 1,645,008 2,059,465 25.19 793,967 1,017,928 28.21 Provision for IETU 116 - (100.00) - - - Provision for Income Tax 455,461 602,724 32.33 219,657 283,068 28.87 Provision for Asset Tax 3,847 2,905 (24.49) 1,453 1,453 - Deferred Income Taxes (3,536) (23,322) 559.56 18,111 511 (97.18) Deferred IETU - - - - - - Net Income for the Year 1,189,120 1,477,158 24.22 554,746 732,896 32.11 Earning per Share 3.9637 4.9239 24.22 1.8492 2.4430 32.11 Earning per American Depositary Share (in U.S. Dollars) 2.5270 3.1391 24.22 1.1789 1.5575 32.11 Exchange Rate per Dollar Ps. 15.6854 ASUR 2Q15, Page 17 of 18

Grupo Aeroportuario del Sureste, S.A.B. de C.V. Consolidated Statement of Cash flow as of June 30, 2015 and 2014 Thousands of Mexican pesos Related 1H 1H % 2Q 2Q % 2014 2015 Change 2014 2015 Change Operating Activities Income Before Income Taxes 1,645,008 2,059,465 25 793,967 1,017,928 28 Items Related with Investing Activities: Depreciation and Amortization 225,756 232,137 3 112,721 116,412 3 Income from Results of Joint Venture Accounted by the Equity Method (32,442) (54,205) 67 (21,892) (21,681) 1 Interest Income (47,400) (75,356) 59 (25,018) (38,188) 53 Foreign Exchange Gain (loss), net - 106,694 - - 47,549 - Sub-Total 1,790,922 2,268,735 27 859,778 1,122,020 31 Increase in Trade Receivables 128,360 115,033 (10) 204,907 214,612 5 Decrease in Recoverable Taxes and other Current Assets (155,382) 419,979 (370) (27,798) 278,965 (1,104) Other Deferred Assets - - - - - - Income Tax Paid (564,673) (697,163) 23 (353,989) (327,506) (7) Income Tax on dividends (287,149) - (100) - - - Trade Accounts Payable 229,433 208,061 (9) 95,419 60,767 (36) Accrued Expenses and Others Payables - - - - - - Long Term Liabilities - - - - - - Net Cash Flow Provided by Operating Activities 1,141,511 2,314,645 103 778,317 1,348,858 73 Investing Activities Investments in Associates - - - - - - Loans granted to Associates - - - - - - Loans repaid by Associates - - - - - - Investments in Machinery, Furniture and Equipment, net (85,390) (543,129) 536 (49,213) (389,498) 691 Investments in Rights to Use Airport Facilities - - - - - - Investments in Construction in Process - - - - - - Investments in Others - - - - - - Interest Income 47,400 75,356 59 25,018 38,188 53 Net Cash Flow Provided by Investing Activities (37,990) (467,773) 1,131 (24,195) (351,310) 1,352 Excess Cash to Use in Financing Activities: 1,103,521 1,846,872 67 754,122 997,548 32 Bank Loans (11,111) - (100) (5,556) - (100) Dividends Paid - (1,530,000) - - (1,530,000) - Tax on Dividends Paid - - - - - - Net Cash Flow Provided by Financing Activities Net Increase in Cash and Cash Equivalents (11,111) (1,530,000) 13,670 (5,556) (1,530,000) 27,438 1,092,410 316,872 (71) 748,566 (532,452) (171) Cash and Cash Equivalents at Beginning of Period 1,259,562 2,855,362 127 1,603,406 3,704,686 131 Cash and Cash Equivalents at the End of Period 2,351,972 3,172,234 35 2,351,972 3,172,234 35 ASUR 2Q15, Page 18 of 18