South Korea deputy finance minister says coordinating closely with major countries such as Japan and the US on FX

Verbal intervention from the vice-minister level is the standard opening step in South Korea's FX defence playbook, which has historically run from jawboning through smoothing operations and, at the more forceful end, national pension hedging adjustments and coordinated action. The reference to coordination with Japan and the US is the element with precedent value: Korea and Japan have made similar joint noises during past episodes of broad dollar strength against Asian currencies, and invoking Washington signals an effort to keep intervention politically permissible rather than to announce anything imminent. The won has tended to respond more durably to actual onshore dollar supply and swap line mechanics than to commentary alone, so the tell is whether the BOK or the ministry follows with operations or whether the language escalates to 'excessive' or 'one-sided' moves, phrasing that has preceded action in the past. Watch also for parallel remarks from Japanese officials, since paired jawboning from both finance ministries has historically marked periods when the dollar leg, rather than the local one, was the problem. As commentary, the signal is directional: officials are flagging discomfort with the level and pace, not defending a specific line.