China Desk · 2026-09-30

China Desk Digest 2026-09-30

SHFE Copper Holds Steep Backwardation as Cathode Output Revised Lower

The SHFE copper 2610/2611 spread stands at 800 yuan per tonne, a 0.73% backwardation, keeping the front month firmly bid (China domestic curve, as of 2026-09-30). The curve's steepness matters because SMM has revised September cathode production down again, citing maintenance and supply issues, while a separate inquiry for roughly 1,000 tonnes of copper matte points to active spot demand (SMM_EN, 2026-09-30). Daytime trading left SHFE copper among the few base metals higher, up 0.35% (SMM_CN, 2026-09-30). Watch whether the backwardation widens if output cuts persist.

Rebar Contango Deepens as Cost Support Slips Across Black Sector

The SHFE rebar 2610/2611 spread sits at -58 yuan per tonne, a -1.87% contango, with the main contract holding on 2701 (China domestic curve, as of 2026-09-30). The structure reflects a sector under pressure: steel mill losses are forcing production cuts, iron ore has slipped to stage lows, and coke has entered a price-cut cycle, loosening cost support (Sina_Futures, 2026-09-30). Stainless steel led daytime declines at -0.62% (SMM_CN, 2026-09-30). For traders, the negative spread signals weak near-term appetite rather than a tight physical market.

PTA Backwardation Stands Out as Softs and Chemicals Diverge

The CZCE PTA 2610/2611 spread is 356 yuan per tonne, a 5.35% backwardation, the steepest curve in today's term data (China domestic curve, as of 2026-09-30). That front-month premium contrasts with a mixed close elsewhere: PVC climbed over 4% while bitumen fell over 3% and low-sulfur fuel oil dropped nearly 2% (Sina_Futures, 2026-09-30). Lithium carbonate main continuous eased 0.94% (SMM_CN, 2026-09-30). The PTA structure suggests tight nearby availability, so monitor whether the spread holds after the holiday break.

Gold Curve Flatly Contangoed as Fed Path Reprices Holiday Trading

The SHFE gold 2610/2611 spread is -2.24 yuan per gramme, a -0.25% contango, with the main month on 2612 (China domestic curve, as of 2026-09-30). Silver shows a similar shape at -32 yuan per kilogramme, a -0.21% contango (China domestic curve, as of 2026-09-30). The flat curves follow a whipsaw in rate expectations: New York Fed President John Williams flagged one more possible hike, then stressed no urgency, and October odds fell from about 70% to around 50% (SMM_CN, 2026-09-30). Spot silver and platinum traded in a holiday mood.

Yangshan Premiums Unchanged as Metals Head Into Holiday Lull

Yangshan copper warrant and bill averages both held flat at 119.00 and 114.00 respectively, with zero change on the day (Yangshan copper premium, as of 2026-09-30). The steady premiums arrive on the last session before the National Day break, when base metals mostly fell and only SHFE copper and tin rose (SMM_CN, 2026-09-30). With LME warrant and basis data unavailable today, the Yangshan print is the clearest read on import appetite. Traders should expect thin liquidity and wider spreads until desks reopen.

Data provenance

• China domestic term structure (M1-M2 spread, main contract) as of 2026-09-30
• Yangshan copper premium (USD/t) as of 2026-09-30
• China headlines, 2026-09-30
• English-native China flashes — SMM_EN / Mysteel_EN, 2026-09-30