Shengyishe published its September 23 national sulfur benchmark at 7,752.33 yuan per metric tonne, up 0.56 percent on the day from September 22's 7,709 yuan print in the open commodity table.
Month to date the index is down 7.15 percent versus the September 1 opening level of 8,349 yuan per tonne, so the session is a third consecutive daily lift inside a still-deep September draw from early-month highs.
September 22 added 40 yuan to reach 7,709 yuan after two flat 7,669 yuan sessions on September 20 and September 21, and today's 43 yuan move keeps momentum on the national line without yet closing the more than 590 yuan gap to the September 1 open.
September 23 open wires put monitored Chinese port sulfur stocks at 940,200 metric tonnes, up roughly 2,200 tonnes from the 938,000 tonne PriceSeek total for September 21, a coastal cushion that can cap domestic spot even when the benchmark ticks higher.
Shandong Lihuayi raised industrial and liquid sulfur offers to 7,400 yuan per tonne on September 23, up 100 yuan from its September 21 cut to 7,300 yuan, showing plant quotes still sit well below the national index.
Shengyishe's September 23 trend screen kept a strong rebound tag with the five-day mean difference doubling to positive 58.66 yuan per tonne from positive 28.33 yuan on September 22, short-end technical support firming with the benchmark.
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.
Buchanan's September 21 congressional letter cited Tampa sulfur near 1,100 to 1,200 dollars per long ton versus a 172 dollar ten-year average, the Atlantic policy mirror of the same tightness BC Insight described on open trade press.
Alberta Energy Regulator ST3 data run 27 August 2026 put province-wide closing inventory at 11,109,610.9 tonnes for July 2026, the verified_public block stock anchor on the North American side of the seaborne story.
The Vancouver Fraser Port Authority reported 3,507,428 metric tonnes of sulfur exports in 2025, up 5 percent year on year, showing the Pacific stem can still clear Alberta tonnes when FOB economics align with the 1,100 to 1,200 dollar band.
SMM's August customs release on September 20 put China sulfur imports at 272,323 metric tonnes, down 65 percent year on year, a demand backdrop that still argues against a quick domestic spot recovery even when Shengyishe posts consecutive daily gains.
Fertilizer Daily's September 20 phosphate review cut East China liquid sulphur toward 7,325 yuan and Zhenjiang granular toward 7,150 yuan, coastal fertilizer-chain offers that remain below today's national line.
Desk read: September 23 Shengyishe at 7,752.33 yuan is the material domestic move after 7,709 yuan on September 22. Pair it with D5 at 58.66 yuan and port stocks near 940 kt until plant quotes above 7,400 yuan confirm a broader floor.