OMA announces external auditor change

Mexico City, Mexico, October 9, 2026 —Grupo Aeroportuario del Centro Norte, S.A.B. de C.V., known as OMA (NASDAQ: OMAB; BMV: OMA) announces that it has appointed Mancera, S.C. (“EY”), member of Ernst & Young Global Limited, as the firm responsible for providing external audit services for OMA’s basic financial statements and those of its subsidiaries, effective for fiscal year 2026, replacing Galaz, Yamazaki, Ruiz Urquiza, S.C. (“Deloitte”).

The replacement of the external auditor is part of the Issuer’s efforts to promote continuous improvement and strengthen its audit processes, in line with corporate governance best practices.

The Board of Directors, its Audit Committee, together with OMA’s Management, acknowledge and express their gratitude to Galaz, Yamazaki, Ruiz Urquiza, S.C. for its commitment, dedication, and professionalism throughout the years in which it provided services as the Issuer’s independent external auditor.

Miranda Newswire – Full Press Release: Download PDF 

Investor Relations Contact Details:

Chief Financial Officer
Ruffo Pérez Pliego del Castillo
+52 (81) 8625 4300
rperezpliego@oma.aero 

Investor Relations 
Vanessa Paola Velazco Barraza

+52 (81) 8625 4308
vanessa.velazco@oma.aero 

This report may contain forward-looking information and statements. Forward-looking statements are statements that are not historical facts. These statements are only predictions based on our current information and expectations and projections about future events. Forward-looking statements may be identified by the words “believe,” “expect,” “anticipate,” “target,” “estimate,” or similar expressions. While OMA’s management believes that the expectations reflected in such forward-looking statements are reasonable, investors are cautioned that forward-looking information and statements are subject to various risks and uncertainties, many of which are difficult to predict and are generally beyond the control of OMA, that could cause actual results and developments to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include, but are not limited to, those discussed in our most recent annual report filed on Form 20-F under the caption “Risk Factors.” OMA undertakes no obligation to update publicly its forward-looking statements, whether as a result of new information, future events, or otherwise.

About OMA

Grupo Aeroportuario del Centro Norte, S.A.B. de C.V., known as OMA, operates 13 international airports in nine states of central and northern Mexico. OMA’s airports serve Monterrey, Mexico’s third largest metropolitan area, the tourist destinations of Acapulco, Mazatlán, and Zihuatanejo, and nine other regional centers and border cities. OMA also operates the NH Collection Hotel inside Terminal 2 of the Mexico City airport and the Hilton Garden Inn at the Monterrey airport. OMA employs over 1,000 persons in order to offer passengers and clients airport and commercial services in facilities that comply with all applicable international safety, security, and ISO 9001:2008 environmental standards. OMA is listed on the Mexican Stock Exchange (OMA) and on the NASDAQ Global Select Market (OMAB). For more information, visit:

• Web Page (http://ir.oma.aero)

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