MONTERREY, Mexico & NEW YORK--(BUSINESS WIRE)--Fitch Ratings has affirmed the TFOVIE 12U notes local currency (LC) rating at 'A-sf' and National Scale long-term rating at 'AAA(mex)'. The Rating Outlook is Stable. The transaction is a securitization of a closed pool of mortgage loans denominated in Veces Salario Minimo and originated by Fondo de Vivienda del Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado (Fovissste) in Mexico. KEY RATING DRIVERS The affirmations refle