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Japan’s Katayama says principles of Japan-US FX intervention remain in place

By Thomson Reuters Sep 23, 2026 | 11:09 PM

By Takaya Yamaguchi and Makiko Yamazaki

TOKYO, Sept 24 (Reuters) – Japanese Finance Minister Satsuki Katayama said on Thursday ​that the principles underpinning ‌the coordinated Japan-US currency intervention in July remain in place, signalling Tokyo’s readiness to take joint action again if needed.

“The ‌principles ​since the previous joint ⁠intervention remain alive,” ⁠Katayama told reporters, referring to the July 31 operation that Tokyo and Washington said was aimed at ​countering excessive volatility and disorderly market moves.

Katayama said she would ⁠not comment on ⁠foreign exchange levels.

The Japanese yen ​has weakened beyond 158 per dollar ​after the Bank of Japan’s rate ‌hike to a 31-year high on Friday fell short of reassuring investors that more aggressive tightening may ⁠be on the way.

Japanese authorities conducted rate checks in overseas markets on Friday, ⁠according to ‌sources familiar with the ⁠matter, a move often ​seen ‌as a precursor to currency ​intervention. The ⁠yen briefly strengthened after the checks, but the gains proved short-lived.

(Reporting by Takaya Yamaguchi; writing by Kaori Kaneko; Editing by Christian Schmollinger and ​Kevin Buckland)