Grupo Aeroportuario del Centro Norte, S.A.B. de C.V. [—] Series B Shares (without par value) of Grupo Aeroportuario del Centro Norte, S.A.B. de C.V. directly or in the form of American Depositary Shares UNDERWRITING AGREEMENTUnderwriting Agreement • May 30th, 2013 • Central North Airport Group • Airports, flying fields & airport terminal services • New York
Contract Type FiledMay 30th, 2013 Company Industry JurisdictionThe shareholder named in Schedule III hereto (the “Selling Shareholder”) of Grupo Aeroportuario del Centro Norte, S.A.B. de C.V., a sociedad anónima bursátil de capital variable (the “Company”) organized under the laws of the United Mexican States (“Mexico”) proposes to sell to the Underwriters named in Schedule II hereto (collectively, the “Underwriters” which term shall also include any underwriter substituted as hereinafter provided in Section 11 hereof), for whom [—] (the “Representative”) is acting as representative, an aggregate of [—] outstanding Series B shares, without par value, of the Company (the “Series B Shares”), directly or in the form of American Depositary Shares (the “ADSs”). The Series B Shares, including any ADSs representing such Series B Shares, to be purchased by the Underwriters as set forth in this Underwriting Agreement (the “Agreement”) are hereinafter called, collectively, the “International Firm Shares.” [The Selling Shareholder also proposes to sell to th