NEW YORK (S&P Global Ratings) May 9, 2017--S&P Global Ratings said today that its ratings and outlook on Columbus, Ohio-based Hexion Inc. (CCC+/Stable/--) are not affected by the company's $75 million add-on to its first-priority senior secured notes due 2022. The unaffected ratings include the 'CCC+' issue-level rating. The recovery rating remains at '3', indicating our expectation for meaningful (50%-70%; rounded estimate: 50%) recovery in the event of a payment default. The company plans to use proceeds from the add-on for general corporate purposes.