Japan has ruled out using its substantial U.S. Treasury holdings as a countermeasure against new tariffs imposed by the administration of President Donald Trump, despite increasing domestic pressure for a more assertive economic response.
Finance Minister Katsunobu Kato, addressing lawmakers on Wednesday, stated that Japan’s holdings of U.S. government debt—estimated to form the bulk of its $1.27 trillion in foreign reserves—are managed strictly for monetary policy purposes, not as instruments of foreign policy.
“We manage our U.S. Treasury holdings from the standpoint of preparing for in case we need to conduct exchange-rate intervention in the future,” Kato said. “Not from the standpoint of bilateral diplomacy.”
The comments come amid heightened trade friction following the reintroduction of tariffs on Japanese imports by the U.S., justified by the White House on grounds of national security and the need to correct trade imbalances. The Trump administration’s measures are part of a broader policy shift targeting several key trading partners.
Within Japan’s ruling party, some members have advocated for the sale of U.S. Treasuries as a retaliatory move. However, the Finance Ministry has dismissed the proposal, citing the risk of financial instability. Kato warned that such action would equate to large-scale currency intervention—selling foreign assets in exchange for yen—potentially pushing up the yen and harming Japan’s export competitiveness.
“There is no pre-set benchmark for what constitutes an appropriate size of foreign reserves, and we do not regard the current level as excessive,” Kato told parliament, underscoring the government’s cautious approach. “We should be cautious about taking such steps regardless of the size of such operations.”
Japan remains one of the largest foreign holders of U.S. Treasury securities, and any significant divestment would likely be interpreted as a politically charged move. Analysts have pointed out that even speculation of such a sale could have a destabilising effect on global bond markets and bilateral relations with the United States.
While the Japanese government is under increasing pressure to respond, it appears determined to maintain a clear distinction between financial policy and diplomatic retaliation. The Finance Ministry’s position reflects a longstanding approach of market stability, especially in the area of foreign exchange, where interventions are generally reserved for periods of excessive volatility.
The situation is developing against the backdrop of growing concerns over the broader impact of protectionist measures on the global economy. JPMorgan Chase CEO Jamie Dimon has warned that the reintroduction of tariffs by the U.S., even with a temporary 90-day suspension for certain goods, could contribute to an economic slowdown. In his annual letter to shareholders, Dimon cited a 60% probability of a U.S. recession in 2025, up from previous forecasts, attributing the increase in part to tariff-driven inflation and declining investor confidence.
Global markets have already shown signs of strain. U.S. Treasury yields have risen sharply, and equity markets have come under pressure amid fears of a broader trade conflict. Japanese firms, including major corporates such as Asahi Group Holdings and Suntory Holdings, have postponed planned bond issuances in response to increased volatility, citing uncertain investor sentiment.
Japanese Prime Minister Shigeru Ishiba has stated that Tokyo will seek exemptions from the U.S. auto tariffs and continue efforts to resolve the trade dispute through dialogue. The government is also considering domestic support measures for sectors most affected by the new tariffs.
For now, Japan is expected to avoid any immediate moves that could be seen as escalating the situation. Officials have indicated that they will raise concerns through formal diplomatic channels, including upcoming international finance meetings and bilateral consultations with the United States.
Despite the growing pressure, Japan’s refusal to weaponise its financial reserves illustrates a consistent policy of monetary conservatism and an emphasis on long-term economic stability. By avoiding politically charged financial manoeuvres, Tokyo is aiming to preserve its credibility in global markets while keeping diplomatic channels open for negotiation.
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