Shengyishe's September 28 rawmex page printed a benchmark at 7,735.67 yuan per metric tonne, up 0.22 percent with a 16:00 timestamp on 2026-09-28.
The move ended four consecutive flat Shandong solid sulfur closes at 7,719.00 yuan from September 24 through September 27 on the same open screen.
The 现货参考价 table showed Shandong ≥99% industrial solid sulfur at 7,735.67 yuan per tonne on the same stamp, aligning the regional spot line with the headline benchmark tick.
Header statistics on the page put the three-month average at 8,839.58 yuan per tonne with a three-month high of 9,535.67 yuan and low of 7,669.00 yuan, framing Monday's lift inside a still-elevated post-summer range.
No September 28 national 基准价 morning article appeared on 100ppi at desk time, continuing the weekend gap after September 23 and September 24 both held 7,752.33 yuan in that article series.
September 25's chemical day board remains the latest published daily board, holding sulfur at 7,719.00 yuan with sulfuric acid flat at 1,737.50 yuan per tonne, so Monday's rawmex uptick is the first spot nudge after that board close.
Shengyishe's September 28 trend note republished on Sina Finance described mixed 均差 moves and labeled the tape oscillation with a mildly bullish pullback signal, a different lens than a straight daily percent change.
SMM's September 24 sulphuric acid weekly put China's copper smelting acid index at 1,247.5 yuan per metric tonne, down 7.7 percent week on week, reminding desks that weak acid can drag elemental demand even when rawmex ticks higher.
SMM's September 20 customs digest put August elemental sulfur imports at 272,323 metric tonnes, down 65 percent year on year, a seaborne hole that can leave Chinese buyers leaning on coastal stocks.
BC Insight's September 19 Price Trends kept North American FOB sulphur in a 1,100 to 1,200 dollars per tonne band while describing cautious buyer sentiment against elevated world offers.
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 when Pacific exporters watch Chinese spot moves.
The Vancouver Fraser Port Authority reported 3,507,428 metric tonnes of sulfur exports in 2025, up 5 percent year on year, showing the stem can clear Alberta tonnes when CFR netbacks clear freight.
Desk read: cite 7,735.67 yuan on the September 28 rawmex stamp for Monday spot and keep the 7,752.33 yuan national article series separate until a fresh morning 基准价 post lands.