The South Korea Financial Supervisory Service published its end-December 2025 monitoring data on domestic banks’ loans classified as substandard or below (SBLs). The SBL ratio was unchanged from end-September at 0.57%, while the SBL balance increased to KRW 16.6 trillion and the ratio was 0.03 percentage points higher than a year earlier. Bad-debt provisions fell to KRW 26.7 trillion, bringing the non-performing loan coverage ratio down to 160.3%. Business-loan SBLs totaled KRW 13.2 trillion (SBL ratio 0.70%), with large-company SBL ratios rising to 0.49% from 0.41% over the quarter and SME ratios declining to 0.83% from 0.88%. Household-loan SBLs were KRW 3.1 trillion (0.31%), including mortgages at 0.21% and unsecured loans at 0.64%, while credit card receivables and loans stood at a 1.84% SBL ratio. In the fourth quarter of 2025, new SBL inflows were KRW 5.9 trillion versus KRW 5.7 trillion resolved, mainly via write-offs and loan sales (KRW 4.1 trillion).