The US Treasury will buy back at least twice its prior volume of 10- to 30-year government bonds, from 9 September to 4 November, to hold long-term yields down. The 30-year yield fell up to 10 basis points to 5.18%. For a Thai SME this is indirect: US long-term rates feed global borrowing costs and the dollar, which can move the baht and import costs. No action is needed yet; watch the baht and your USD-linked loan or import pricing over the coming months.