BOK nominee flags intervention action on won weakness as inflation risks rise

The BOK is signalling readiness to respond to excessive won weakness as geopolitical risks drive FX volatility, while inflation concerns rise and growth remains uneven.Summary:BOK governor nominee flags readiness to act against excessive won weakness FX volatility driven by Middle East tensions and failed US–Iran talks Inflation risks rising, now key factor for policy decisions Growth drag persists but partly offset by strong semiconductor exports Policy outlook remains highly uncertain with inflation–growth trade-off intensifyingSouth Korea’s incoming central bank leadership is signalling a more vigilant stance on currency stability, as the Bank of Korea (BOK) governor nominee Shin Hyun-song indicated authorities are prepared to respond if the Korean won weakens excessively. In remarks submitted ahead of his parliamentary confirmation hearing, Shin highlighted the sharp depreciation pressures seen since the escalation of conflict in the Middle East, noting that moves in the won have been more pronounced than in many peer currencies.Although the currency had recently stabilised near the 1,480 per dollar level, volatility remains elevated. The won weakened again on Monday, briefly approaching 1,500 per dollar after the latest round of US–Iran talks failed to produce a resolution, underscoring how sensitive the currency remains to external geopolitical developments. Shin stressed that authorities would continue to closely monitor foreign exchange conditions, suggesting a readiness to act if moves become disorderly.At the same time, Shin downplayed concerns around the absolute level of the exchange rate, pointing to stable liquidity conditions in domestic financial markets. This reflects a measured approach, where policymakers are less focused on defending specific levels and more concerned with preventing excessive or destabilising volatility.On monetary policy, Shin signalled that rising inflation risks, particularly those stemming from higher energy prices linked to geopolitical tensions, would be a key consideration in future decisions. This marks a shift toward a more inflation-aware stance, even as South Korea’s growth outlook remains under pressure.Recent data and central bank guidance suggest a mixed macro picture. While weaker global demand and uncertainty continue to weigh on growth, robust semiconductor exports and fiscal support measures are providing some offset. The BOK recently held rates steady but acknowledged a more uncertain path ahead, with expectations of slower growth and higher inflation.Overall, Shin’s remarks point to a central bank navigating an increasingly complex environment, balancing currency stability, inflation risks, and fragile growth dynamics.This is KRW-supportive at the margin via policy signalling, but broader forces dominate. The willingness to respond to excessive FX moves may help stabilise the currency, particularly against sharp depreciation episodes. However, rising oil prices and global risk aversion remain key drivers, keeping pressure on KRW. For rates, the shift toward inflation concerns reduces easing scope, creating a tighter policy bias than previously expected.