Moody's has upgraded SK Hynix's long-term issuer rating and senior unsecured debt rating by one notch to A3 from Baa1, while keeping the outlook stable. According to ChainCatcher, the move marks the company's first A-level rating from Moody's since it joined SK Group in 2012.

The rating action reflects stronger competitiveness in the AI memory market, along with improved profitability and cash generation.