MEXICO CITY, July 8, 2013 (GLOBE NEWSWIRE) -- Empresas ICA, S.A.B. de C.V. (BMV:ICA) (NYSE:ICA), the largest infrastructure and construction company in Mexico, and Mexican airport operator Grupo Aeroportuario del Centro Norte, S.A.B. de C.V., known as OMA (Nasdaq:OMAB) (BMV:OMA), announced today that OMA has relaunched the underwritten secondary public offering originally announced on June 7, 2013, subject to market and other conditions. OMA has filed an updated preliminary prospectus supplement with the U.S. Securities and Exchange Commission (SEC). OMA previously filed a registration statement and prospectus with Mexico's National Banking and Securities Commission ( Comisión Nacional Bancaria y de Valores, or CNBV) and the Mexican Stock Exchange ( Bolsa Mexicana de Valores, S.A.B. de C.V., or BMV) relating to the offering. Aeroinvest, S.A. de C.V. (Aeroinvest), ICA's indirect wholly owned subsidiary and the sole selling shareholder, is offering 60,000,000 of OMA's Series B shares, without par value, directly or in the form of American Depositary Shares (ADSs). Each OMA ADS represents eight Series B shares. A total of 60,000,000 of OMA's Series B shares (directly or in the form of ADSs) will be offered for sale through the offering in Mexico and the offering in the United States and elsewhere outside of Mexico. In addition, as part of the offering, ICA's subsidiary Aeroinvest is granting the international underwriters and the Mexican underwriters independent options to purchase up to 9,000,000 additional Series B shares. The offered shares represent approximately 17.25% of OMA's total capital stock. All of the Series B shares and ADSs are being sold by Aeroinvest, which will receive all the proceeds of the offering. OMA will not receive any proceeds from the offering, and its total number of outstanding Series B shares will not change as a result of the offering. Following the offering, ICA expects to retain a significant participation and the controlling interest in OMA through its ownership of OMA's Series BB shares.