Japanese Finance Minister Katsunobu Kato said Tuesday he expects any talks with U.S. Treasury Secretary Scott Bessent on exchange rates to be based on their shared understanding that excessive currency market volatility is undesirable.Kato and Bessent are expected to hold a bilateral meeting on the sidelines of the G7 finance ministers' summit in Canada this week.While Tokyo and Washington continue separate bilateral talks on tariffs, the thorny topic of the exchange rate has been left for discussion 142,50-143-50.