Open market wires on September 23 put monitored Chinese port elemental sulfur inventories at 940,200 metric tonnes, or 94.02 万吨 in domestic reporting.
The breakdown listed Fangcheng at 380,000 tonnes, Zhanjiang at 200,000 tonnes, Zhenjiang at 223,000 tonnes, Dafeng at 86,000 tonnes, Beihai at 23,000 tonnes, and Nanjing at 10,000 tonnes in the published table.
The total compares with 938,000 metric tonnes on the September 22 PriceSeek wire for September 21 data, a small 2,200 tonne uptick that keeps coastal stocks in the high band the desk flagged on September 22.
Zhenjiang rose to 223,000 tonnes from 220,000 tonnes on the prior wire while Beihai fell to 23,000 tonnes from 28,000 tonnes, a mixed port-level shift inside a nearly flat aggregate.
The inventory wire arrived the same session Shengyishe lifted the national sulfur benchmark to 7,752.33 yuan per tonne, up 43 yuan from September 22's 7,709 yuan print.
PriceSeek's September 22 release scored 938,000 tonnes as mildly bearish for domestic spot, arguing ample coastal supply can cap yuan prices even when short-term technical screens turn more constructive.
Shengyishe's September 23 trend screen kept a strong rebound tag with the five-day mean difference at positive 58.66 yuan per tonne, a technical read that heavy port stocks can undercut if coastal offers stay soft.
Fertilizer Daily's September 20 phosphate review still showed East China liquid sulphur near 7,325 yuan and Zhenjiang granular near 7,150 yuan, coastal offers that sit below the national line while stocks remain high at the port gate.
BC Insight's September 19 Price Trends kept North American FOB sulphur steady at 1,100 to 1,200 dollars per tonne, the Pacific offer band Alberta recovered sulfur still references even as Chinese port inventories edge higher.
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 same seaborne tightness 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 rail and forming capacity align.
SMM's August customs put China sulfur imports down 65 percent year on year at 272,323 metric tonnes, a demand read that can coexist with high port stocks when domestic production and coastal arrivals stay ample.
Desk read: treat 940,200 tonnes at monitored Chinese ports as a marginal supply cushion against the 7,752 yuan benchmark uptick until weekly customs or a draw in Fangcheng and Zhenjiang stocks confirm tighter coastal balances.