Shengyishe published its 2026 week 38 chemical price board for 21 through 25 September on 2026-09-25 at 17:01, closing the elemental line with a modest weekly lift.
Sulfur week-opened at 7,709.00 yuan per metric tonne and week-ended at 7,719.00 yuan, up 0.13 percent week on week with year-on-year up 192.64 percent in the open table.
Sulfuric acid was unchanged for the week at 1,737.50 yuan per tonne at both week-open and week-end, so the elemental move was not accompanied by a weekly acid repricing.
The week began with Shengyishe's September 22 national 基准价 at 7,709.00 yuan, the same week-open figure on the board, before national articles printed 7,752.33 yuan on September 23 and September 24.
That divergence between board week-open and mid-week national 基准价 prints reinforces the desk rule to cite series consistently rather than blend national and board lines into one daily change.
September 25 rawmex quoted Shandong solid sulfur at 7,719.00 yuan at 16:00, matching the week 38 board close and the September 25 day board flat print.
Shengyishe's September 24 trend release kept oscillation as the overall direction while flipping to counter-rally with a bearish bias on the national 7,752.33 yuan line.
SMM's September 24 acid weekly marked a twelfth consecutive weekly decline in China's copper smelting acid index to 1,247.5 yuan per metric tonne, a downstream drag that can outlast a flat elemental week on the board.
BC Insight's September 19 Harrisson update described Middle East monthly sulfur exports below 1.0 million tonnes since March 2026, a supply backdrop that can lift world offers without moving Chinese board lines immediately.
BC Insight Price Trends the same week kept Vancouver FOB in a 1,100 to 1,200 dollars per tonne band on 19 September, the Pacific frame Alberta forming plants reference when Chinese spot pauses.
Alberta July 2026 closing inventory at 11.11 million tonnes in AER ST3 confirms measured inventory draw rather than a sudden remelt surge on the Canadian side.
Lihuayi's September 23 Shandong offer at 7,400 yuan per tonne still trailed the 7,752 yuan national 基准价 by more than 350 yuan, preserving regional dispersion under a nearly flat board week.
Desk read: Week 38 elemental at +0.13 percent to 7,719 yuan is a quiet close ahead of the weekend. Treat it as board-series context until a September 25 national 基准价 article lands or coastal plant quotes move with the board.