Why did Moody's upgrade Thailand's sovereign outlook from Negative to Stable?

Moody's upgraded Thailand's sovereign outlook to Stable from Negative due to a more stable political environment—specifically, a coalition holding a 'sizeable parliamentary majority' that reduces volatility and improves the likelihood of reforms—and diminished downside risks from US tariffs, as Thai exports now face a 19% levy comparable to regional peers.

What are the key structural weaknesses constraining Thailand's GDP growth, according to Moody's?

According to Moody's, Thailand's structural weaknesses include 'declining competitiveness, chronically low investment, rapid population ageing, and high household debt', which cap GDP growth at around 2.5%, down from roughly 3% before the COVID-19 pandemic.

Moody’s Upgrades Thailand, PTT Outlook Amid Lower Tariffs, Political Volatility

Apr 23, 2026

Moody’s upgraded Thailand’s sovereign and PTT’s credit outlook to Stable, citing political stability and reduced tariff risks. The integrated oil and gas firm, including chemical subsidiary PTTGC, anticipates improved growth despite exposure to volatile oil prices and petrochemical margins.

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Moody’s Upgrades Thailand, PTT Outlook Amid Lower Tariffs, Political Volatility

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