MEXICO CITY, March 15 (Reuters) - Mexico's Banorte issued long-term sustainable bank certificates in the country's main stock exchange worth 13.06 billion pesos ($782 million), according to a statement published on Friday.

Ratings agency Moody's Mexico branch assigned a 'AAA.mx' rating to the transaction, and Fitch Ratings, 'AAA (mex)', the statement said. ($1 = 16.7097 Mexican pesos) (Reporting by Valentine Hilaire; Editing by Sarah Morland)