Japan appointed Atsushi Mimura as the new top currency diplomat to address the yen's 38-year low against the dollar, signaling potential market intervention to strengthen the currency. Finance Minister Shunichi Suzuki expressed deep concern over rapid foreign exchange movements and highlighted the government's vigilant monitoring of the situation. Mimura's appointment, part of a routine personnel reshuffle, follows significant yen-buying interventions earlier this year amidst pressure to stabilize the yen amidst interest rate differentials with the US. Mimura, currently the head of the international bureau at the Ministry of Finance, will assume his new role on July 31, coinciding with the G20 meeting in Rio de Janeiro. Despite ongoing efforts, challenges persist due to the impact of low deposit interest rates on the yen's strength.