Japan’s Finance Minister Satsuki Katayama said on Wednesday that the government remains ready to intervene in the foreign-exchange market if sharp currency moves threaten financial stability, after the yen weakened beyond JPY 163 per U.S. dollar—its lowest level in roughly 40 years. Speaking to reporters, Katayama declined to comment on any specific exchange-rate level but reiterated that authorities stand prepared to act when needed. Her remarks reaffirm the government’s long-standing stance of closely monitoring currency developments and underscore that policymakers are still willing to step in if volatility becomes excessive, even as they refrain from identifying a precise threshold for intervention.