...MEXICO CITY (Standard & Poor's) Jan. 29, 2015--Standard & Poor's Ratings Services has corrected its ratings on Alpek S.A.B. de C.V. by reinstating its '###-' rating on the company's $650 million senior unsecured notes due 2022. Earlier today on Jan. 29, 2015, we erroneously withdrew our ratings on these notes following the withdrawal of our issuer credit rating on Alpek's subsidiary, Grupo Petrotemex S.A. de C.V., which is the guarantor of the notes. RELATED CRITERIA AND RESEARCH + Methodology And Assumptions: Liquidity Descriptors For Global Corporate Issuers, Dec. 16, 2014 + Key Credit Factors For The Commodity Chemicals Industry, Dec. 31, 2013 + Country Risk Assessment Methodology And Assumptions, Nov. 19, 2013 + Corporate Methodology: Ratios And Adjustments, Nov. 19, 2013 + Methodology: Industry Risk, Nov. 19, 2013 + Corporate Methodology, Nov. 19, 2013 + 2008 Corporate Criteria: Rating Each Issue, April 15, 2008 Complete ratings information is available to subscribers of RatingsDirect...