PTT Global Chemical Public Co. Ltd. (GC)'s status as a highly strategic subsidiary of its parent, PTT Public Co. Ltd. (PTT), will continue to support the company's creditworthiness. Earnings accretion from Allnex Holding GmbH will not fully offset the impact of the sizable acquisition on GC's debt leverage, which will rise above 4.0x in 2021 and 2022. We revised downward the Thailand-based petrochemical company's stand-alone credit profile (SACP) to 'bb+' from 'bbb-'. On July 15, 2021, S&P Global Ratings affirmed its 'BBB' long-term issuer credit rating on GC. We also affirmed the 'BBB' long-term issue rating on the senior unsecured notes issued or guaranteed by the company. The stable outlook on GC mirrors that of the local currency rating on