FX.co ★ South Korea’s Producer Prices Accelerate in January, Signaling Upward Cost Pressures

South Korea’s Producer Price Index (PPI) rose 0.6% month‑over‑month in January 2026, an acceleration from December 2025’s 0.4% increase, according to data updated on 23 February 2026. The PPI measures the average change over time in the selling prices received by domestic producers, and serves as a key early indicator of cost pressures in the economy.

The latest reading means that, on a month‑over‑month basis, producer prices in January increased more sharply than in the previous month, when the 0.4% gain in December reflected a smaller uptick versus November. The January 2026 figure, therefore, points to a strengthening of input and production costs for South Korean businesses at the start of the year.

Since the comparison is made month‑over‑month, the January 2026 “actual” change of 0.6% is evaluated directly against December’s 0.4% “previous” change, highlighting a clear step‑up in producer‑level inflation as the new year begins.