MEXICO CITY (Standard&Poor's) Dec. 14, 2009--Standard&Poor's Ratings Services said today that it affirmed the ratings on six private-sector Mexican corporate entities and projects. This follows our decision to lower our transfer and convertibility risk assessment to 'A' from 'A+' on the United Mexican States, which remains a notch higher than our highest rated private corporate issuer. The long-term foreign currency sovereign credit rating on Mexico is 'BBB/Stable'. "Geographic diversity, cash flow and liquidity stress testing, and off-shore shareholders are among the factors keeping Mexican ratings above those on the sovereign," said Standard&Poor's credit analyst Jose Coballasi. "Furthermore, the financial and operating performance of our highest rated corporate issuers during 2009 has been in line
