A 60-Day Truce, With China's Erbium Deadline Still Inside It

A state dinner, then sixty days

When Xi Jinping landed outside Washington on 23 September, Donald Trump met him at the airport, something no sitting American president had done for a foreign visitor in 65 years ². The toasts produced one hard number: Treasury Secretary Scott Bessent announced that the Busan trade truce, due to lapse on 10 November, will instead run to 10 January 2027↗ ¹. China had asked for the rest of Trump's term; it got sixty days ².

The element left on the clock

Erbium is the rare earth that turns glass into a network: erbium-doped amplifiers repeat the light signal every 80 to 120 kilometers on a terrestrial cable, every 50 to 80 kilometers on a submarine one ³. No producer outside China makes erbium oxide at commercial scale, in the words of a Tronox strategy executive ³.

Twelve rare earths, erbium included, sit under Chinese export restrictions instituted in April and October 2025; the erbium curbs were suspended for one year in November 2025, and that suspension expires on 10 November ³⁵. The truce bridge runs past the date. On the Economist's account↗, the erbium expansion still stands on the bridge ².

The flows never came back

The truce was supposed to restore mineral shipments to pre-dispute levels ⁵. It has not. Magnets were the stakes when Chips Out, Magnets In↗ previewed this summit on 21 September, and they still are.

First-half shipments of rare-earth magnets to America averaged 479 tonnes a month, against a pre-2025 norm of 586 ⁵. July's 647 tonnes was the second-largest month since the controls began ⁶; August slid 21% to 512 ⁵. Bessent says he will press for "more fulsome" compliance while weighing the "bigger" deal Beijing proposed ¹².

Calm was the deliverable

On AI, both leaders chose an agreement to do nothing. Trump posted that "Super Intelligence" would be a big topic, "but I want to leave it exactly where it is. That is China's position also. Our guardrail is the DOJ" ⁷. Xi answered that AI development must remain "under human control" ⁸. Neither side raised China's distillation of American models ².

The chip stays parked through two more summits

The $14bn Taiwan arms package has sat unapproved for months↗, the "very good negotiating chip" Trump described after meeting Xi in May ⁹. Summits in Shenzhen in November and Miami in December give each side a fresh reason to keep holding it ². The fiber beneath the AI buildout stays on Beijing's clock.

The licence list is the tell

Market participants expect the controls to return on 10 November unless Beijing extends the suspension again↗ ¹⁰. If erbium licence approvals keep flowing past that date, the suspension quietly held; if they thin, the truce bought time, not supply. The next reading is six weeks out. Then, 10 January.