NICE Upgrades SK Hynix Credit Rating to AA+ on HBM Strength

NICE Investors Service upgraded SK Hynix's credit rating by one notch to AA+ (stable) from AA (positive), citing the chipmaker's solid competitiveness in the high-bandwidth memory (HBM) market amid expanding demand from global artificial intelligence data centers.

The upgrade, announced Wednesday through an ad-hoc review, follows a similar move by Korea Ratings in January, enabling SK Hynix to secure more favorable terms in the debt capital market.

"In a supplier-dominant market environment, SK Hynix is expected to maintain excellent profitability and cash flow generation capabilities based on its technological prowess and supply competitiveness," NICE said in a report.

The rating agency pointed to global AI investment expansion and SK Hynix's HBM competitiveness as key factors. Major AI developers and cloud operators are aggressively expanding facilities, driving steady demand for high-value products including HBM and enterprise solid-state drives.

Supply shortages persist as few companies can produce these products due to high process difficulty, and capacity expansion takes time. SK Hynix achieved a record 48.6% operating margin last year while maintaining its competitive edge in the premium HBM market.

HBM demand expansion is also boosting margins in the commodity DRAM market. Major memory chipmakers are allocating significant fab capacity to HBM production, creating a supplier-favorable environment in DRAM as well.

NICE noted that SK Hynix is managing capital expenditures stably within its EBITDA levels despite the semiconductor industry's structural need for continuous large-scale investment.

Among major private Korean companies, only Hyundai Motor and Kia hold higher AAA ratings than SK Hynix.

"Competition with rivals will intensify starting with HBM4 products this year, but SK Hynix is expected to maintain its superior supply position given its established process maturity and partnerships with key customers," a NICE official said.