At the same time, Moody's has also affirmed PTT's baseline credit assessment (BCA) at baa2.
The outlook on all ratings remain stable.
“The affirmation of PTT's Baa1 ratings reflects its strong credit metrics, solid liquidity profile and healthy cash flow generation, even after taking into account its proposed $4.3 billion debt-funded acquisition of Glow Energy Public Company Limited, a power company based in Thailand," says Rachel Chua, a Moody's Assistant Vice President and Analyst.