Shengyishe published its September 22 national sulfur benchmark at 7,709.00 yuan per metric tonne, up 0.52 percent on the day from September 21's unchanged 7,669 yuan print in the open commodity table.
Month to date the index is down 7.67 percent versus the September 1 opening level of 8,349 yuan per tonne, so the session is a modest uptick inside a still-deep September draw from early-month highs.
September 20 and September 21 both held 7,669 yuan flat on the day while Longzhong cut Zhenjiang port granular to 7,200 yuan and Fertilizer Daily put East China liquid sulphur near 7,325 yuan, showing coastal offers below the national line.
September 21 plant wires added divergence: Shandong Dongming raised liquid sulfur to 7,700 yuan while Lihuayi cut offers to 7,300 yuan under the same flat benchmark, a dispersion pattern today's 7,709 yuan print only partly closes.
SMM's August customs release on September 20 put China sulfur imports at 272,323 metric tonnes, down 65.03 percent year on year, a demand backdrop that still argues against a quick domestic spot recovery even when the national index ticks higher.
BC Insight's September 19 Price Trends kept North American FOB sulphur steady at 1,100 to 1,200 dollars per tonne while describing bearish buyer sentiment against stubbornly high spot levels globally.
Middle East supply relief remains partial in the same BC Insight account: roughly 380,000 tonnes on eight vessels remained inside the Gulf backlog after a ceasefire window cleared 22 vessels carrying about 1.07 million tonnes.
SunSirs and SMM tables this month still place import offers above many domestic benchmarks, preserving parity floors even as port prices fall faster than seaborne offer levels.
For Alberta recovered sulfur on the Vancouver stem, a 40 yuan domestic uptick does not by itself collapse Pacific netbacks when BC Insight holds a 1,100 to 1,200 dollar FOB band on open trade press.
The Vancouver Fraser Port Authority reported 3,507,428 metric tonnes of sulfur exports in 2025, up 5 percent year on year, with China still the largest listed destination at 1.30 million tonnes.
AER ST3 data run 27 August 2026 put Alberta province-wide closing inventory at 11,109,610.9 tonnes for July 2026, a verified_public anchor that frames how much block sulfur can still move when FOB economics clear.
Shengyishe's September 22 trend screen kept a strong rebound tag with the five-day spread turning positive at 28.33 yuan per tonne, a technical read that can coexist with a still-negative month-to-date benchmark path.
Desk read: September 22 Shengyishe is the first national uptick after two flat 7,669 yuan sessions. Treat 7,709 yuan as a pause inside a 7.67 percent month-to-date draw until plant quotes and port lines near 7,150 to 7,325 yuan confirm a broader domestic floor.