ASR

Business Context and Reporting Period

Company: Southeast Airport Group (Grupo Aeroportuario del Sureste, S.A.B. de C.V.)
Filing Type: Form 6-K (Report of Foreign Private Issuer)
Date: June 6, 2012
Reporting Period: May 2012 (compared to May 2011)
Business Overview: ASUR operates concessions for nine airports in southeast Mexico, including Cancun, Merida, Cozumel, and Villahermosa. The company is listed on the NYSE (ASR) and the Mexican Bolsa (ASUR).

Key Financial and Operational Metrics

This filing reports operational passenger traffic data rather than financial statements (revenue, profit, cash flow, or debt).

• Total Passenger Traffic (May 2012): 1,482,936
• Total Passenger Traffic (May 2011): 1,420,153
• Year-over-Year Growth: 4.4%
• Domestic Traffic: 707,915 (9.6% increase)
• International Traffic: 775,021 (0.1% increase)

Note: Transit and general aviation passengers are excluded from these figures.

Material Changes vs. Prior Period

Performance varied significantly across individual airports during May 2012:

• Significant Growth:
  • Cozumel (Domestic): +137.9%
  • Oaxaca (Total): +24.0%
  • Villahermosa (Total): +14.7%
  • Cancun (Total): +6.3%
• Declines:
  • Huatulco (International): -38.8%
  • Merida (Total): -13.5%
  • Veracruz (Total): -7.7%
  • Tapachula (Total): -7.0%

Guidance, Outlook, and Risks

The filing does not provide financial guidance, forward-looking outlooks, management commentary on risks, or details on contingencies. The document is limited to the announcement of historical passenger traffic statistics for May 2012.

Investor Verification Checklist

• Verify the correlation between the 4.4% traffic increase and actual revenue growth in the upcoming quarterly financial report.
• Investigate the specific causes for the 38.8% drop in international traffic at Huatulco and the 13.5% decline at Merida.
• Confirm if the 137.9% surge in domestic traffic at Cozumel represents a sustainable trend or a one-time anomaly.
• Review the full Form 20-F for comprehensive financial data (revenue, margins, debt) as this 6-K contains only operational metrics.