Japan 10-year bond yield fell 5.5 bps to 2.640%; 5-year yield fell 3.0 bps to 1.875%.

IAEA director Grossi said Kazakhstan has signalled willingness to receive and store Iran’s near‑weapons‑grade enriched uranium — roughly 440 kg enriched as much as 60% — provided Washington and Tehran reach an agreement on Iran’s nuclear programme. Grossi said he raised the issue after meeting Kazakh President Tokayev in Astana. The fate of that stockpile remains one of the thorniest items in back‑channel talks aimed at ending hostilities involving Iran; former president Trump had previously demanded the material be moved out of Iran.

US Treasury Secretary Bessent said on May 28 that US and Iranian negotiating teams remain in talks, but TRUMP has set multiple "red lines" and will not accept a "bad deal." Bessent said TRUMP prefers a peaceful settlement and that current US actions are "defensive," but the administration will act if a peaceful agreement cannot be reached. TRUMP demands Iran hand over highly enriched uranium, forswear nuclear-weapon development, and restore free navigation through the Strait of Hormuz; Bessent said Oman told him it will not charge passage fees and warned countries that try to restrict navigation could face US sanctions.