Exhibit 99.1

ASUR Reports 1Q24 Financial Results

Total passenger traffic in 1Q24 increased 3.9% YoY

Mexico City, April 22, 2024 – Grupo Aeroportuario del Sureste, S.A.B. de C.V. (NYSE: ASR; BMV: ASUR) (ASUR), a leading international airport group with operations in Mexico, the U.S., and Colombia, today announced results for the three-month period ended March 31, 2024.

1Q24 Highlights1

ASUR 1Q24 Page 1 of 25    

During 1Q24, ASUR's total passenger traffic increased 3.9% year-over-year to 18.6 million.

Total passenger traffic in Mexico increased 3.8% year-over-year to 11.5 million in 1Q24, driven by increases of 9.4% in international traffic, partially offset by a decrease of 3.5% in domestic traffic.

In Puerto Rico, total passenger traffic increased 12.2% year-over-year to 3.3 million in 1Q24, mainly driven by increases of 11.1% in domestic traffic and 23.0% in international traffic.

Total passenger traffic in Colombia for 1Q24 declined 2.1% year-over-year to 3.8 million passengers, driven by a 6.7% decrease in domestic traffic, mainly due to the suspension of Viva Air and Ultra Air operations since 1Q23. International traffic increased by 18.6% in the period.

On page 20 of this report, you will find the tables with detailed information on passenger traffic for each airport.

Table 3: % YoY Change in Passenger Traffic 2024 & 2023

ASUR 1Q24 Page 2 of 25  

Sustainability Update

On April 15, 2024, ASUR published its Sustainability Report 2023 outlining the Company’s initiatives that contribute to the specific targets of the 13 Sustainable Development Goals. The report was prepared in accordance with GRI standards and the specific sector supplement for airport operators, and also addresses the recommendations of the Task Force on Climate-Related Financial Disclosures (TCFD) and covers the indicators of the Sustainability Accounting Standards Board (SASB) applicable to the professional and commercial services sector.

ASUR maintains a diverse and independent board of directors made up of 11 members, of whom three are women. In 2022, the Sustainability Committee was created, which reports directly to the Board of Directors. The Chairwoman of the Sustainability Committee is a member of the Board of Directors. At the operational level, sustainability and social responsibility activities are the responsibility of the Strategic Planning and Corporate Governance Department.

Key 2023 initiatives include:

Governance

Environmental

Social

Review of Consolidated Results

1 Adjusted operating margin excludes the effect of IFRIC12 with respect to the construction or improvements to concessioned assets in Mexico, Puerto Rico and Colombia and is equal to operating income divided by total revenues minus revenues from construction services.
2 Adjusted EBITDA Margin excludes the effect of IFRIC12 with respect to the construction or improvements to concessioned assets in Mexico, Puerto Rico and Colombia, and is calculated by dividing EBITDA by total revenues less construction services revenues.
3 Passenger figures include transit and general aviation passengers Mexico, Puerto Rico and Colombia.
4 Represents ASUR´s operations in convenience stores

Consolidated Revenues

Consolidated Revenues increased 15.3% year-over-year, or Ps.985.5 million, to Ps.7,434.9 million, mainly due to the following variations:

Excluding revenues from construction services, for which an equivalent expense is recorded under IFRS accounting standards, total revenues would have increased 13.9% year-over-year to Ps.7,178.5 million.

Excluding revenues from construction services, Mexico represented 76.1% of ASUR´s total revenues in 1Q24, while Puerto Rico and Colombia represented 13.5% and 10.4%, respectively.

Commercial Revenues in 1Q24 increased 4.8% YoY to Ps.2,336.4 million, mainly reflecting the 3.9% increase in passenger traffic (including transit and general aviation passengers). Commercial revenue growth was driven by increases of 2.6% to Ps.1,678.4 million in Mexico, 10.0% to Ps.462.6 million in Puerto Rico and 13.9% to Ps.195.4 million in Colombia.

Commercial Revenues per Passenger increased YoY to Ps.124.9 in 1Q24, from Ps.123.2 in 1Q23.

Consolidated Operating Costs and Expenses

Consolidated Operating Costs and Expenses, including construction costs, increased 17.2% year-over-year, or Ps.419.9 million, to Ps.2,855.7 million in 1Q24.

Excluding construction costs, operating costs and expenses increased 13.7%, or Ps.312.9 million, due to the following factors:

Cost of Services increased 9.4%, or Ps.105.7 million, year-over-year mainly due to increases in personnel costs, surveillance and cleaning services, maintenance and conservation, professional fees, insurance and bonds, higher cost of revenues from concession stores operated directly by ASUR, electric energy and taxes and duties.

Construction Costs increased 71.7% YoY, or Ps.107.0 million. This was mainly driven by a year-over-year increase of 123.4%, or Ps.103.0 million, in construction costs in Mexico, and 10.7%, or Ps.6.4 million, in Puerto Rico, partially offset by a decrease of 39.1%, Ps.2.4 million, in construction costs in Colombia.

Administrative Expenses that reflect administrative costs in Mexico increased 2.3% year-over-year.

Consolidated Technical Assistance decreased by 44.1% year-on-year, as the technical assistance fee decreased from 5% to 2.5% as of January 1, 2024.

Concession Fees increased 69.5% YoY, on a consolidated basis principally due to increases of 117.5% in Mexico due to an increase in the concession fee from 5% to 9% as of January 1, 2024, and 14.8% in Colombia as a result of higher regulated and unregulated revenues, and 1.4% in Puerto Rico.

Depreciation and Amortization increased 5.2% YoY, or Ps.27.0 million, principally due to an increase of 12.9%, or Ps.32.9 million in Mexico and 6.3%, or Ps.5.7 million in Colombia, partially offset by a decrease of 6.9%, or Ps.11.7 million, in Puerto Rico.

Consolidated Operating Profit and EBITDA

ASUR reported a Consolidated Operating Profit of Ps.4,579.2 million in 1Q24, representing an operating margin of 61.6%, compared to Ps.4,013.6 million and an operating margin of 62.2% in 1Q23.

Adjusted Operating Margin was 63.8% in 1Q24 compared to 63.7% in 1Q23. Adjusted Operating Margin excludes the effect of IFRIC 12 with respect to the construction of or improvements to concessioned assets in Mexico, Colombia, and Puerto Rico, which is calculated as operating profit or loss divided by total revenue minus revenue from construction services.

EBITDA increased 13.1%, or Ps.592.5 million, to Ps.5,122.9 million in 1Q24, from Ps.4,530.4 million in 1Q23. By country of operations, EBITDA increased by 15.0% or Ps.540.9 million to Ps.4,134.9 million in Mexico, and 1.3%, or Ps.6.8 million, to Ps.527.0 million in Puerto Rico and 10.8%, or Ps.44.9 million, to Ps.461.0 million in Colombia.

Consolidated EBITDA margin in 1Q24 was 68.9% compared to 70.2% in 1Q23.

Adjusted EBITDA Margin, which excludes the effect of IFRIC 12 with respect to the construction of or improvements to concessioned assets in Mexico, Puerto Rico, and Colombia, was 71.4% in 1Q24, compared to 71.9% in 1Q23.

Consolidated Comprehensive Financing Gain (Loss)

In 1Q24 ASUR reported a Ps.42.0 million Consolidated Comprehensive Financing Loss, compared to a Ps.527.8 million loss in 1Q23. This variation is mainly attributed to an increase of 54.6%, or Ps.144.7 million in interest income reflecting a higher cash balance position, combined with a 16.5% decline, or Ps.50.6 million in interest expenses resulting from principal payments in Mexico and Puerto Rico.

During 1Q24 ASUR reported a foreign exchange loss of Ps.196.4 million, resulting from the 2.3% quarter-end appreciation of the Mexican peso against the U.S. dollar on a U.S. dollar net asset position (0.3% average depreciation) during the covered period. This compared to a Ps.486.9 million foreign exchange loss in 1Q23 resulting from the 7.3% quarter-end appreciation of the Mexican peso against the U.S. dollar on a U.S. dollar net asset position (4.1% average appreciation) during the covered period.

Income Taxes

Income Taxes for 1Q24 increased Ps.464.2 million YoY, principally due to the following variations:

Majority Net Income

ASUR reported Majority Net Income of Ps.3,082.1 million in 1Q24, compared to Ps.2,512.4 million in 1Q23. This resulted in earnings per common share in 1Q24 of Ps.10.2736, or earnings per ADS of US$6.2143 (one ADS represents ten series B common shares). This compared to earnings per share of Ps.8.3745, or earnings per ADS of US$5.0656 for 1Q23.

Net Income

ASUR reported Net Income of Ps.3,186.7 million in 1Q24, an increase of 22.5%, or Ps.584.5 million, from Ps.2,602 million in 1Q23.

Consolidated Financial Position

Airport concessions represented 66.4% of ASUR’s total assets as of March 31, 2024, with current assets representing 30.5% and other assets 3.1%.

As of March 31, 2024, cash and cash equivalents amounted to Ps.16,823.0 million, a 21.3% increase from Ps.13,872.9 million as of March 31, 2023. Cash and cash equivalents in Mexico, Colombia and Puerto Rico amounted to Ps.12,392.5 million, Ps.2,840.4 million and Ps.1.590.1 million, respectively.

As of March 31, 2024, the valuation of ASUR’s investment in Aerostar in accordance with IFRS 3 "Business Combinations," had the following effects on its balance sheet: (i) the recognition of a net intangible asset of Ps.4,331.5 million, (ii) goodwill of Ps.789.8 million (net of an impairment of Ps.4,719.1 million), (iii) deferred taxes of Ps.435.9 million, and (iv) a minority interest of Ps.4,716.6 million in stockholders' equity.

As of March 31, 2024, the valuation of ASUR’s investment in Airplan, in accordance with IFRS 3 “Business Combinations”, resulted in the following effects on the balance sheet: (i) the recognition of a net intangible asset of Ps.739.6 million, (ii) goodwill of Ps.1,296.9 million, (iii) deferred taxes of Ps.190.4 million, and (iv) a Ps.210.5 million recognition of bank loans at fair value.

As of March 31, 2024, Stockholders’ equity was Ps.54,382.6 million and total liabilities were Ps.18,610.6 million, representing 74.5% and 25.5% of ASUR’s total assets, respectively. Deferred liabilities represented 16.4% of ASUR’s total liabilities.

As of March 31, 2024, Total Debt declined 3.9% to Ps.11,749.1 million from Ps.12,224.8 million as of December 31, 2023, mainly reflecting: (i) the FX conversion impact reflecting Mexican peso appreciation against the U.S. dollar and the Colombian peso, and (ii) payment of principal amounts of outstanding debt of Ps.50.0 million in Mexico.

As of March 31, 2024, 21.1% of ASUR’s Total Debt was denominated in Mexican pesos, 71.0% in U.S. Dollars (at Aerostar in Puerto Rico) and 8.0% in Colombian pesos (debt at Airplan in Colombia).

In July 2022, Aerostar in Puerto Rico issued US$200 million principal amount of 4.92% senior secured notes due March 22, 2035. In May 2022, Aerostar renegotiated the terms of its US$50 million principal amount of 6.75% senior secured notes originally due on June 24, 2015, and extended their maturity through March 22, 2035. All long-term debt is collateralized by Aerostar’s assets.

On November 15, 2023, Aerostar renewed the US$20.0 million revolving credit facility with Banco Popular de Puerto Rico, with a maturity date of December 29, 2026. As of March 31, 2024, no such credit line has been drawn.

In April 2023, Banco Popular transferred to the Bank of Bogotá its interests under the syndicated loan entered into with Airplan by issuing promissory notes under the same terms and conditions than the original loan.

LTM Net Debt-to-LTM EBITDA stood at negative 0.3x at the close of 1Q24, while the Interest Coverage Ratio was 10.9x. This compared with LTM Net Debt-to-LTM EBITDA of negative 0.1x and an Interest Coverage Ratio of 11.7x as of March 31, 2023, respectively.

Strong Liquidity Position and Healthy Debt Maturity Profile

ASUR closed 1Q24 with a solid financial position, with cash and cash equivalents totaling Ps.16,823.0 million and Ps.11,749.1 million in Total Debt. A total of Ps.50.0 million in principal amount of outstanding debt payments is due in 2Q24.

The following table shows the liquidity position for each of ASUR’s regions of operations:

Table 9: Principal Debt Payments as of March 31, 2024

Figures in Thousands of Mexican Pesos

ASUR 1Q24 Page 8 of 25

Table 10: Debt Ratios as of March 31, 2023

LTM EBITDA and LTM interest expenses figures of thousands Mexican pesos

Accounts Receivables

Accounts receivables increased 14.8% YoY in 1Q24, mainly driven by increased activity in Mexico and the suspension of operations of Viva Colombia and Ultra Air in Colombia on February 28 and March 29, 2023. During 2023, these two companies accounted for 5.5% and 2.2% of passenger traffic in Colombia, respectively. At the end of 1Q24, these two companies owed ASUR Ps.14.1 million and Ps.9.9 million, respectively.

The 85.2% decline in accounts receivables in Puerto Rico mainly driven by the collection in May 2023 of other income of Ps.300.4 million derived from a judgment in favor of Puerto Rico for the right to charge a charge for each gallon of aviation fuel that was dispatched at the airport for the period from 2013 to 2021, compliant with IFRS IAS 37 and USGAAP ASC-450-30-25-1.

Table 11: Accounts Receivable as of March 31, 2024

Figures in Thousands of Mexican Pesos

Note: Net of allowance for bad debts.

Capital Expenditures

ASUR made capital expenditures of Ps.182.6 million in 1Q24. Of this amount, Ps.106.1 million were allocated to modernizing the Company´s Mexican airports pursuant to its master development plans, Ps.72.5 million were invested by Aerostar in Puerto Rico and Ps.3.9 million were invested by Airplan in Colombia. This compared to Ps.143.0 million invested in 1Q23, of which Ps.70.2 million were invested in Mexico, Ps.66.8 million in Puerto Rico and Ps.6.0 million in Colombia.

Review of Mexico Operations

Mexico Revenues

Mexico Revenues increased 18.2% YoY to Ps.5,646.1 million.

Excluding construction, revenues increased 16.4% YoY, mainly due to increases of 25.1% in revenues from aeronautical services and 2.6% in revenues from non-aeronautical services, resulting principally from the 3.8% increase in passenger traffic (excluding transit and general aviation passengers).

Commercial Revenues increased 2.6% YoY, principally due to the 3.8% increase in passenger traffic (including transit and general aviation passengers) as shown in Table 12.

Commercial Revenues per Passenger for 1Q24 was Ps.145.3 compared to Ps.147.0 in 1Q23.

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 operations, parking lot fees, and other.

As shown in Table 14, during the last 12 months, ASUR opened 17 new commercial spaces, 10 of which were opened at Merida airport, 2 at each of Cancun and Oaxaca airports and 1 at each of Huatulco, Cozumel and Veracruz airports. More details of these openings can be found on page 21 of this report.

Mexico Operating Costs and Expenses

Total Mexico Operating Costs and Expenses increased 25.5% YoY, or Ps.363.0 million. Excluding construction costs, operating costs and expenses increased 19.2%, or Ps.260.0 million, mainly due to higher personnel expenses, concession fees, surveillance and cleaning services, maintenance and conservation costs, energy, taxes and duties.

Cost of Services increased 10.6% YoY, primarily due to increases in personnel, surveillance and cleaning services, maintenance, and conservation, together with higher energy costs, taxes and duties.

Administrative Expenses increased 2.3% YoY.

The Technical Assistance fee declined 44.1% YoY, principally due to the reduction in the technical assistance fees charged by ITA to 2.5% from 5.0% of the EBITDA generated by ASUR´s Mexican operations starting January 1, 2024.

Concession Fees, which include fees paid to the Mexican government, increased by 117.5%, principally due to the increase in the concession fee rate to 9% from 5% starting January 1, 2024.

Depreciation and Amortization increased 12.9% YoY, due to the recognition of investments made to date.

Mexico Consolidated Comprehensive Financing Gain (Loss)

During 1Q24, ASUR’s Mexico operations reported an Ps.18.7 million Comprehensive Financing Gain, compared to a Ps.437.8 million loss in 1Q23. This was mainly due to a 67.4% YoY, or Ps.124.2 million, increase in interest income resulting from a higher cash balance, combined with a decline of 30.9% YoY, or Ps.41.8 million, in interest expenses mainly due to principal payments in 2023.

In 1Q24, a Ps.196.4 million foreign exchange loss was reported, resulting from the 2.3% quarter-end appreciation of the Mexican peso against the U.S. dollar on a foreign currency net asset position (0.3% average depreciation). This compared to a Ps.486.9 million foreign exchange loss in 1Q23, resulting from the 7.3% quarter-end appreciation of the Mexican peso during that period against the U.S. dollar on a foreign currency net asset position (4.1% average appreciation).

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Mexico Operating Profit (Loss) and EBITDA

Mexico reported an Operating Gain of Ps.3,845.7 million and an Operating Margin of 68.1% in 1Q24. This compared to an Operating Gain of Ps.3,337.8 million and an Operating Margin of 69.9% in 1Q23.

Adjusted Operating Margin was 70.4% in 1Q24, compared to 71.1% in 1Q23. Adjusted Operating Margin excludes the effect of IFRIC 12 with respect to the construction of or improvements to concessioned assets and is calculated as operating profit divided by total revenues excluding construction services revenues.

EBITDA increased 15.0%, or Ps.540.9 million, to Ps.4,134.9 million in 1Q24, from Ps.3,3594.0 million in 1Q23. EBITDA margin in 1Q24 was 73.2% compared to 75.3% in 1Q23.

Adjusted EBITDA Margin, which excludes the effect of IFRIC 12 with respect to the construction of or improvements to concessioned assets, was 75.7% in 1Q24, compared to 76.6% in 1Q24.

Mexico 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 accumulated regulated revenues at its Mexican operations, as of March 31, 2024 totaled Ps.3,705.0 million, with an average tariff per workload unit of Ps.250.3 (December 2023 Mexican pesos), representing approximately 67.9% of total income in Mexico (excluding construction revenues) for the period.

The Mexican Ministry of Communications and Transportation reviews compliance with maximum rate regulations at the end of each year.

Mexico Capital Expenditures

During 1Q24 ASUR invested Ps.106.1 million in connection with its plan to modernize its Mexican airports under its master development plans, compared to an investment of Ps.70.2 million in 1Q23.

ASUR 1Q24 Page 12 of 25  

Review of Puerto Rico Operations

The following discussion compares Aerostar’s independent results for the three-month period ended March 31, 2023 and 2024.

As of March 31, 2024, the valuation of ASUR’s investment in Aerostar in accordance with IFRS 3 "Business Combinations," had the following effects on its balance sheet: (i) the recognition of a net intangible asset of Ps.4,331.5 million, (ii) goodwill of Ps.789.8 million (net of an impairment of Ps.4,719.1 million), (iii) deferred taxes of Ps.435.9 million, and (iv) a minority interest of Ps.4,716.6 million in stockholders' equity.

Puerto Rico Revenues

Total Puerto Rico Revenues increased 2.2% YoY to Ps.1,033.6 million in 1Q24.

Excluding construction services, revenues increased by 1.7% YoY, mainly due to a 9.9% increase in revenues from non-aeronautical services, partially offset by the 4.9% decline in revenues from aeronautical services.

Commercial Revenues per Passenger were Ps.141.8 in 1Q24, compared to Ps.144.7 in 1Q23.

Six commercial spaces were opened at Luis Muñoz Marin (LMM) Airport over the last 12 months, as shown in Table 20. More details can be found on page 21 of this report.

ASUR classifies commercial revenues as those derived from the following activities: duty-free stores, car rentals, retail operations, advertising, non-permanent ground transportation, food and beverage operations, parking lot fees, banking and currency exchange services, and others.

Puerto Rico Operating Costs and Expenses

Figures in Mexican pesos at the average exchange rate Ps.17.1594 = US. 1.00

Total Operating Costs and Expenses for 1Q24 in Puerto Rico increased 0.6% YoY to Ps.664.5 million. Construction costs increased 10.7%, from Ps.59.8 million in 1Q23 to Ps.66.3 million in 1Q24.

Excluding construction costs, operating costs and expenses declined 0.4% YoY, or Ps.2.3 million, mainly due to a 6.9% decline in depreciation and amortization due to the FX conversion effect, the reversal of a provision of an employee benefit, together with increases in concession fees, professional fees, materials and supplies.

Cost of Services increased 2.3% or Ps.8.8 million in 1Q24, principally due to the increase in professional fees, materials and supplies, partially offset by the reversal of a provision of an employment benefit.

Concession Fees paid to the Puerto Rican government in 1Q24 increased 1.4% YoY, or Ps.0.7 million.

Depreciation and Amortization declined 6.9% YoY, or Ps.11.7 million, principally reflecting the foreign exchange translation impact.

Puerto Rico Comprehensive Financing Gain (Loss)

Figures in pesos at the average exchange rate Ps.17.1594 = US. 1.00

During 1Q24, Puerto Rico reported a Ps.98.3 million Comprehensive Financing Loss, compared to a Ps.116.1 million loss in 1Q23, mainly due to principal payments made on Aerostar’s outstanding debt.

On March 22, 2013, Aerostar carried out a private bond placement for a total of US$350.0 million to finance a portion of the Concession Agreement payment to the Puerto Rico Ports Authority, and certain other costs and expenditures associated with it. On June 24, 2015, Aerostar carried out a private bond placement for a total of US$50.0 million.

In December 2020, Aerostar entered into a three-year revolving line of credit with Banco Popular de Puerto Rico for the amount of US$20.0 million.

In May 2022, Aerostar renegotiated the terms of its US$50.0 million principal amount of 6.75% senior secured notes, extending the maturity to March 22, 2035.

In July 2022, Aerostar in Puerto Rico issued US$200.0 million principal amount of 4.92% senior secured notes due March 22, 2035.

On November 15, 2023, Aerostar extended the maturity date of the revolving credit line with Banco Popular de Puerto Rico, now maturing December 29, 2026. As of March 31, 2024, this credit line has not been drawn. All long-term debt is collateralized by Aerostar’s assets.

Puerto Rico Operating Profit and EBITDA

Figures in Mexican pesos at the average exchange rate Ps.17.1594 = US. 1.00

1 Adjusted Operating Margin excludes the effect of IFRIC12 with respect to the construction or improvements to concessioned assets, and is equal to operating profit divided by total revenues less construction services revenues.

2 Adjusted EBITDA Margin excludes the effect of IFRIC12 with respect to the construction or improvements to concessioned assets, and is calculated by dividing EBITDA by total revenues less construction services revenues.

Operating Profit in Puerto Rico increased 5.3% to Ps.369.0 million, resulting in an Operating Margin of 35.7%, compared to an operating profit of Ps.350.5 million and an Operating Margin of 34.7% in 1Q23.

EBITDA increased 1.3% to Ps.527.0 million in 1Q24 from Ps.520.2 million in 1Q23. The EBITDA Margin declined to 51.0% in 1Q24 from 51.5% in 1Q23.

Adjusted EBITDA Margin (which excludes IFRIC 12) was 54.5% in 1Q24, compared to 54.7% in 1Q23.

Puerto Rico Capital Expenditures

During 1Q24, Aerostar made capital expenditures for a total of Ps.72.5 million, compared to investments of Ps.66.7 million in 1Q23.

Puerto Rico Tariff Regulation

The Airport Use Agreement entered into by and among Aerostar, the airlines serving LMM Airport, and the Puerto Rico Ports Authority governs the relationship between Aerostar and the principal airlines serving LMM Airport. The agreement entitles Aerostar to an annual contribution from the airlines of US$62.0 million during the first five years of the term. From year six onwards, the total annual contribution for the prior year increases in accordance with an adjusted consumer price index factor based on the U.S. non-core consumer price index. The annual fee is divided between the airlines that operate at LMM Airport in accordance with the regulations and structure defined under the Airport Use Agreement to establish the contribution of each airline for each particular year.

Review of Colombia Operations

The following discussion compares Airplan's independent results for the three-month period ended March 31, 2024 and 2023.

The valuation of ASUR’s investment in Airplan, in accordance with IFRS 3 “Business Combinations”, resulted in the following effects on the balance sheet as of March 31, 2024: (i) the recognition of a net intangible asset of Ps.739.6 million, (ii) goodwill of Ps.1,296.9 million, (iii) deferred taxes of Ps.190.4 million, and (iv) a Ps.210.5 million recognition of bank loans at fair value.

Colombia Revenues

Total Revenues in Colombia increased 13.9% YoY to Ps.755.2 million. Excluding construction services, revenues increased 14.3% YoY, principally reflecting the increase in international traffic during the period.

Commercial Revenue per Passenger was Ps.50.2 compared to Ps.42.3 in 1Q23.

As shown in Table 26, during the past twelve-months a total of 22 new commercial spaces were opened in Colombia: 8 in Olaya Herrera, 5 in Rionegro, 3 in Quibdó, 2 in each of Monteria and the Service Center and 1 in each of Corozal and Carepa airports. Further details of these openings can be found on page 21 of this report.

ASUR classifies commercial revenues as those derived from the following activities: duty-free stores, car rentals, retail operations, advertising, non-permanent ground transportation, food and beverage operations, parking lot fees, teleservices, banking and currency exchange services and other.

Colombia Costs & Expenses

Figures in pesos at an average exchange rate of COP.230.3787 = Ps.1.00 Mexican pesos.

Total Operating Costs and Expenses in Colombia increased 15.6% YoY to Ps.390.7 million. Excluding construction costs, operating costs and expenses increased 16.6% YoY to Ps.387.1 million, principally due to increases in maintenance and conservation, personnel, taxes and duties, security and cleaning, insurance and surety bond costs, concession fees and energy costs.

Cost of Services 26.5% YoY, or Ps.30.9 million, principally resulting from higher maintenance and conservation cost, personnel expenses, taxes and duties, as well as cleaning, security, and surety bond costs end energy costs.

Construction Costs declined 39.1% YoY, or Ps.2.4 million.

Concession Fees, which include fees paid to the Colombian government, increased 14.8% YoY, principally due to the increase in regulated and non-regulated revenues during the period.

Depreciation and Amortization increased 6.3% YoY.

Colombia Comprehensive Financing Gain (Loss)

Figures in Mexican pesos at an average exchange rate of COP.230.3787 = Ps.1.00 Mexican pesos.

During 1Q24, Airplan reported a Ps.37.5 million Comprehensive Financing Gain, compared to a Ps.26.1 million gain in 1Q23. Interest income increased 43.1%, or Ps.21.2 million, mainly due to a higher cash position and higher rates.

Colombia Operating Profit (Loss) and EBITDA

ASUR's Colombian operations reported an Operating Profit of Ps.364.4 million in 1Q24, compared to Ps.325.3 million in 1Q23. Operating margin was 48.3% in 1Q24, compared to 49.0% in 1Q23. The Adjusted operating margin, which excludes the effect of IFRIC12 with respect to construction or improvements to concessioned assets, was 48.5% in 1Q24 compared to an adjusted operating margin of 49.5% in 1Q23.

EBITDA in 1Q24 was Ps.461.0 million, resulting in an EBITDA margin of 61.0%. This compared to an EBITDA of Ps.416.1 million and an EBITDA margin of 62.7% in 1Q23.

The Adjusted EBITDA Margin, which excludes the effect of IFRIC12 with respect to the construction or improvements of the concessioned assets, was 61.3% in 1Q24, compared to an adjusted EBITDA margin of 63.3% in 1Q23, principally due to the decline in passenger traffic and bad debt provisions resulting from the suspension of two local airlines in Colombia in 1Q23.

Colombia Capital Expenditures

In 1Q24, Airplan made capital investments for a total of Ps.3.9 million, compared to Ps.6.0 million in 1Q23.

Colombia Tariff Regulation

Functions of the Special Administrative Unit of Civil Aeronautics include establishing and collecting fees, tariffs, and rights for the provision of aeronautical and airport services or those generated by concessions, authorizations, licenses, or any other type of income or property. As a result, Resolution 04530, issued on September 21, 2007, establishes tariffs for the rights and the rates conceded to the concessionaire of the following airports: José María Córdova of Rionegro, Enrique Olaya Herrera of Medellín, Los Garzones of Montería, El Caraño of Quibdó, Antonio Roldán Betancourt of Carepa, and Las Brujas of Corozal. This resolution also established the methodology to update and the mechanisms to collect such fees, tariffs, and rights.

During 1Q24, Airplan's regulated revenues amounted to Ps.555.5 million.

Definitions

Concession Services Agreements (IFRIC 12 interpretation). In Mexico and Puerto Rico, ASUR is required by IFRIC 12 to include in its income statement an income line, “Construction Revenues,” reflecting the revenue from construction of, or improvements to concessioned assets made during the relevant period. 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 Costs 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. In Colombia, “Construction Revenues” include the recognition of the revenue to which the concessionaire is entitled for carrying out the infrastructure works in the development of the concession, while “Construction Costs” represents the actual costs incurred in the execution of such additions or improvements to the concessioned assets.

Majority Net Income reflects ASUR’s equity interests in each of its subsidiaries and therefore excludes the 40% interest in Aerostar that is owned by other shareholders. Other than Aerostar, ASUR owns (directly or indirectly) 100% of its subsidiaries.

EBITDA means net income before provision for taxes, deferred taxes, profit sharing, non-ordinary 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, as an alternative to cash flow or 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.

Adjusted EBITDA Margin is calculated by dividing EBITDA by total revenues excluding construction services revenues for Mexico, Puerto Rico, and Colombia and excludes the effect of IFRIC 12 with respect to the construction of, or improvements to concessioned assets. ASUR is required by IFRIC 12 to include in its income statement an income line reflecting the revenue from construction of, or improvements to concessioned assets made during the relevant period. The same amount is recognized under the expense line “Construction Costs” because ASUR hires third parties to provide construction services. In Mexico and Puerto Rico, because equal amounts of Construction Revenues and Construction Costs 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 relates to Construction Revenues does not result in a corresponding increase in EBITDA. In Colombia, construction revenues do have an impact on EBITDA, as construction revenues include a reasonable margin over the actual cost of construction. Like EBITDA Margin, Adjusted EBITDA Margin should not be considered as an indicator of our operating performance, as an alternative to cash flow or as an indicator of liquidity and is not defined under U.S. GAAP or IFRS and may be calculated differently by different companies.

About ASUR

Grupo Aeroportuario del Sureste, S.A.B. de C.V. (ASUR) is a leading international airport operator with a portfolio of concessions to operate, maintain, and develop 16 airports in the Americas. These comprise nine airports in southeast Mexico, including Cancun Airport, the most important tourist destination in Mexico, the Caribbean, and Latin America, and six airports in northern Colombia, including José María Córdova International Airport (Rionegro), the second busiest airport in Colombia. ASUR is also a 60% JV partner in Aerostar Airport Holdings, LLC, operator of the Luis Muñoz Marín International Airport serving the capital of Puerto Rico, San Juan. San Juan’s Airport is the island’s primary gateway for international and mainland-US destinations and was the first and currently the only major airport in the US to have successfully completed a public–private partnership under the FAA Pilot Program. Headquartered in Mexico, ASUR 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. For more information, visit www.asur.com.mx

Analyst Coverage

In accordance with Article 4.033.01 of the Mexican Stock Exchange Internal Rules, ASUR reports that the stock is covered by the following broker-dealers: Actinver, Banorte, Barclays, BBVA, Bradesco, BTG Pactual, Citi Global Markets, GBM Grupo Bursatil, Goldman Sachs, HSBC Securities, Insight Investment Research, Intercam, Itau BBA Securities, Jefferies, JP Morgan, Punto Research, Santander, Scotiabank, Signum Research, UBS Casa de Bolsa and Vector.

Please note that any opinions, estimates or forecasts with respect to 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.

Forward Looking Statements

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.

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