A cancelled or downgraded summit would likely revive the trade friction narrative that had eased since the two leaders' May meeting in Beijing, with implications for sectors tied to that fragile detente, including agricultural exporters awaiting the Chinese soybean and grain purchases promised earlier this year, and aerospace names exposed to the stalled Boeing order. Conversely, a summit that proceeds without a Taiwan flashpoint would likely be read as confirmation that both sides still prefer managed stability over confrontation, even without major new agreements. Given expectations are already low heading in, the more market moving risk sits with the binary outcome, summit or no summit, rather than with the content of any deal that does emerge.---Xi's trip to Washington is still on the calendar, but whether it survives may come down to one unresolved decision on Taiwan.Summary:Xi is scheduled to arrive in Washington September 23, with talks on September 24 and departure on the 25thIt would be Xi's first White House visit in more than a decade, with a formal state dinner plannedThe White House has confirmed the date; Beijing has not made an equivalent formal announcement of the visitChina has warned via Kyodo News that it would cancel the summit if the US approves a pending $14 billion Taiwan arms package beforehandTrump has not yet made a final decision on that arms saleAnalysts are already framing the summit as a low expectations event given unresolved items from May's Beijing meeting and recent friction at the G20Chinese President Xi Jinping is scheduled to arrive in Washington on September 23 for a White House summit with President Donald Trump the following day, his first visit to the US capital in more than a decade, but the meeting remains formally unconfirmed on the Chinese side and faces a live threat of cancellation.The visit would follow Trump's own trip to Beijing in May and is expected to include a formal state dinner. The White House has confirmed the September 24 date from its end, and Trump has spoken confidently about the meeting in recent days, calling it very exciting. Beijing, however, has not made an equivalent public announcement of Xi's travel plans, a gap that has persisted for weeks even as preparations continue on both sides.The central risk to the summit is Taiwan. Citing diplomatic sources, Japan's Kyodo News reported around September 13 that China has warned it would cancel the meeting if Washington approves new arms sales to Taiwan before the two leaders sit down. Beijing regards Taiwan as the foremost red line in the relationship, a position Xi underscored during the May summit in Beijing when he told Trump that mishandling the issue could trigger clashes and conflict. The specific flashpoint is a roughly 14 billion dollar arms package that Congress has already approved but which still requires Trump's final sign off, a decision he has so far left pending.Even setting the Taiwan question aside, expectations for what the summit could achieve are being managed downward. Analysts including Craig Singleton of the Foundation for Defense of Democracies have described it as a low expectations summit focused on managing an ongoing stalemate rather than resolving it, pointing to unfulfilled commitments from the May meeting, including a Chinese pledge to purchase Boeing aircraft and American agricultural goods, as evidence the relationship is producing transactions without much underlying trust. Friction at this month's G20 finance ministers meeting, where China was the lone dissenter on a joint statement and separately objected to language on the Iran war, has added to the strained backdrop heading into the visit.For now the summit remains officially on the calendar, and most market commentary still treats it as more likely than not to proceed given neither side has an obvious interest in being the party that cancels first. But the outcome hinges on a decision Trump has not yet made. Approval of the Taiwan arms package before September 24 would, by Beijing's own stated position, be enough to scrap the meeting entirely, leaving the visit's status tied to a single unresolved policy call rather than a settled diplomatic calendar. This article was written by Eamonn Sheridan at investinglive.com.