South Korea authorities, including the Governor of the central bank, the Bank of Korea, have been attemtoing to talk the won up (jawboning). To little impact.

USD/KRW has continued its trek higher. The USD has been rampant.

Any intervention to support the won would likely provide only a slowing of its deprecation, not a full stop to it. But that won't stop authorities from trying.

usdkrw 23 June 2022