Alberta and Vancouver export desks entered 30 October with the Chinese domestic sulfur screen accelerating its October slide, as Shengyishe's afternoon rawmex close and Tonghuashun iFind's spot table both marked a fresh three-month low well below the prior session's 5,551.75 yuan print.
Shengyishe's 100ppi rawmex page at 16:00 on 30 October put the national sulfur benchmark at 5,344.25 yuan per metric tonne, down 207.5 yuan or 3.74 percent from 5,551.75 yuan on 29 October.
The screen marked 5,344.25 yuan as a new three-month low against a three-month peak of 9,535.67 yuan and a three-month average of 8,001.44 yuan on the open methodology header, extending the unwind that began when October opened near 7,685.67 yuan.
The same rawmex header listed an opening benchmark of 5,544.25 yuan on 30 October before the afternoon reset to 5,344.25 yuan, a same-day swing Pacific desks should treat as volatility on thin phosphate demand rather than a freight shock.
Tonghuashun iFind's 30 October sulfur spot article at 16:55 local time matched 5,344.25 yuan per tonne, down 207.5 yuan on the day, with cumulative moves of minus 370 yuan or 6.48 percent over the past week and minus 2,341.42 yuan or 30.46 percent over the past month on the same table.
SunSirs' English commodity table listed granular sulfur at 5,344.25 yuan per tonne on 30 October versus 5,551.75 yuan on 29 October, confirming the cross-feed on the open international board.
Monitored coastal elemental sulfur on the 100ppi wire remained 1.1251 million tonnes as of 28 October, unchanged from the prior published breakdown that listed Fangchenggang at 420 thousand tonnes, Zhanjiang at 350 thousand tonnes, Zhenjiang at 218 thousand tonnes, Dafeng at 82 thousand tonnes, Beihai at 18 thousand tonnes, and Nanjing at 10 thousand tonnes.
Shandong refinery list prices on the wire included Dongming liquid sulfur at 5,400 yuan per tonne and solid sulfur at 6,300 yuan per tonne on 30 October, with Li Huayi liquid and industrial sulfur at 5,370 yuan per tonne, all cuts from prior offers on the same feed.
Shengyishe's sulfuric acid benchmark held 1,540.00 yuan per metric tonne on 30 October, unchanged on the day and down 9.94 percent versus the 1,710.00 yuan October 1 reference on 100ppi detail-20261030-6417358, so downstream acid margins stayed flat even as elemental benchmarks fell sharply.
Middle East nomination math was unchanged on the open record: Shanghai Metals Market's 8 October flash still lists October 2026 producer contracts at QatarEnergy 835 dollars per tonne FOB, Kuwait Petroleum Corporation 820 dollars FOB, and ADNOC 890 dollars FOB Ruwais, with November QSP, KSP, ADNOC OSP, and Saudi Aramco monthly postings still absent on verified open wires at desk time.
ChemPriceHub's mid-October international roundup still frames seaborne competition near 830 to 840 dollars FOB Vancouver and 740 to 790 dollars FOB Middle East ex-Iran for the week of 15 October, the dollar bands Alberta blocks must clear when yuan replacement cost softens.
Alberta Energy Regulator ST3 sulphur statistical files on the public index were unchanged at desk time, with the verified_public August 2026 provincial closing inventory still the North American stockpile anchor behind rail and terminal scheduling.
For dated China benchmark, port inventory, Middle East contract context, and downloadable CSV history, see the China sulfur price and Middle East sulfur contract price topic pages; licensed weekly assessment grids stay with your data vendor.
Desk read: treat the 207.5 yuan benchmark cut as continuation of the phosphate-led unwind into month end until November Gulf contracts print; size Vancouver netbacks with 830 to 840 dollar FOB and roughly 1.13 million tonne coastal cover in the same spreadsheet.