South Korea’s Producer Price Index (PPI) growth slowed modestly in September 2026, easing to 7.7% year-over-year from 7.9% in August, according to data updated on 20 October 2026. The figures compare price changes for each month against the same month a year earlier.
The slight deceleration in producer prices suggests some easing of upstream cost pressures, though PPI remains elevated on an annual basis. The August reading of 7.9% year-over-year had already signaled strong pricing momentum at the producer level, and September’s 7.7% print indicates only a marginal step down in that trend.
Market participants and policymakers will be watching coming months’ data closely to see whether this moderation develops into a more sustained slowdown in producer inflation or merely reflects temporary factors in the September comparison base.
