Assessment by independent rating agencies Audited

The capital market makes use the assessments published by rating agencies in order to assist lenders in evaluating the risks of a financial instrument. Merck is currently rated by the agencies Standard & Poor’s and Moody’s. In December 2009, Standard & Poor’s gave Merck a long-term rating of A-, with a stable outlook. In December 2009, Moody’s gave Merck a long-term rating of A3, with a stable outlook. Thus, both agencies confirm a stable investment grade rating for us.