The global economic recovery and strong demand across key end-markets has led to a significant improvement in Polymer Additives Holdings Inc.'s (doing business as Valtris) earnings and credit measures in the first half of 2021. As a result, we raised our issuer credit rating on the company to 'B-' from 'CCC+' In addition, we raised our issue-level ratings on the company's first-lien debt, including Valtris' term loan and revolving credit facility, to 'B-' from 'CCC+', in line with our issuer upgrade. The recovery ratings were revised to '3' from '4', indicating our expectation of meaningful (50% to 70%) recovery in the event of a payment default. The stable outlook on Valtris reflects our expectation that credit metrics will improve compared