According to CoinMeta, as reported by beincrypto, the United States is concerned about Japan's weak yen and bond market, as Japan is Washington's largest creditor country. Japanese Finance Minister Toshimi Kataoka revealed talks with U.S. President Donald Trump on Friday. The yen approached 164 per dollar at the end of July, hitting a 40-year low, and is currently trading around 157. Analysts estimate that Japan has spent approximately $167 billion this year to support the yen, partly by selling U.S. Treasury bonds. The yield on U.S. 10-year Treasury bonds reached 5.18% on September 24. The Bank of Japan raised its benchmark interest rate to 1.25% on September 18, the highest level since 1995. The weakness of the yen has made trade for the United States more difficult, and Kataoka stated that Trump told her that U.S. trade has "been tough" due to the depreciation of the yen.