The extension removes a near-term cliff risk for Asian assets, with the truce otherwise due to expire in November, and should underpin the yuan and China-sensitive currencies such as the Australian dollar. Because an extension was widely signposted, the bigger swing factor is whether the summit produces the broader deal Beijing floated or simply a rollover. Rare earth flows are the key pressure point to watch, given the US view that China has not fully honoured its commitments. The short, two-month horizon means tariff risk returns early in the new year, limiting how much risk premium markets can price out now.---Washington and Beijing have bought themselves two more months of tariff peace, the easy part, leaving the summit to show whether the Busan truce can grow into something bigger than a rollover.Summary:The US and China agreed on Wednesday to extend the Busan trade agreement until January 10, Treasury Secretary Bessent said after meeting Vice Premier He LifengBessent said the talks explored a bigger deal rather than a series of smaller measures; China first proposed a broader agreement at talks on SundayThe Busan truce, agreed by Trump and Xi in October last year, was due to expire on November 10Under Busan, the US halved its fentanyl-related tariff to 10%, while China suspended rare earth export curbs and committed to large soybean purchasesWashington says China has not fully honoured its rare earth commitmentsXi has arrived in the US for a White House summit with Trump, with the leaders possibly meeting up to four times this yearThe United States and China have agreed to extend the trade truce struck in Busan, South Korea, until January 10, US Treasury Secretary Scott Bessent said on Fox News on Wednesday, following talks with Chinese Vice Premier He Lifeng. The announcement came as Chinese President Xi Jinping arrived in the US for a state visit and summit with President Donald Trump.Bessent said the two sides had met to explore whether a larger agreement could be reached, rather than a string of smaller measures, and had agreed in the meantime to roll over the Busan arrangement. Earlier on Wednesday he had said Washington was open either to continuing the Busan arrangement or examining a bigger deal, an idea he said the Chinese side raised on Sunday. Trump and Xi are expected to take up the issues at the White House on Thursday. The truce dates back to the leaders' meeting in Busan last October. Washington cut its fentanyl-related tariff on Chinese goods from 20% to 10%, while China agreed to issue general licences for exports of rare earths, gallium, germanium, antimony and graphite and to suspend the sweeping export controls it had announced on October 9. The tariff cut took the overall US tariff burden on Chinese goods from 57% to 47%. Beijing also committed to buying at least 12 million metric tons of US soybeans in the final two months of 2025 and at least 25 million tons a year through 2028, and both sides agreed to pause shipping-industry investigations and port fees on each other's vessels for a year. Those concessions were set to run until November 10, 2026, so Wednesday's agreement pushes the deadline out by two months. The arrangement has not been free of friction. The US believes China has not fully honoured its rare earth export commitments, and those concerns remain part of negotiations over preserving the Busan deal. Trade Representative Jamieson Greer said a bilateral Board of Trade, meant to smooth commerce in goods that raise no national security concerns, is now operational. Bessent had also described Sunday's talks in New York as successful, saying the two sides agreed to set up a hotline for notifying each other of AI safety incidents, although Chinese state media acknowledged only that AI was discussed. The short extension leaves room for more negotiation. Bessent noted the leaders could meet up to four times this year, with this summit the second and further meetings pencilled in for Shenzhen and Miami. Whether Thursday's talks deliver a broader framework, or simply lock in the rollover, will determine how much trade uncertainty returns to markets in the new year. "We'll always have Busan" This article was written by Eamonn Sheridan at investinglive.com.