Iron ore eases as northern China curbs steel output

Iron ore futures slipped on Tuesday 10 November 2026 as pollution controls in China's steelmaking heartland threatened to cut demand. The benchmark December 2026 iron ore contract on the Singapore Exchange (62% Fe fines, CFR China basis) was down 0.58% at US$92.50 per dry metric tonne at 01:35 GMT. This was an intraday Asian-session quote rather than a settlement.

A second benchmark for 62% Fe fines CFR Tianjin showed US$92.54 a tonne on 10 November, down 0.18% from 92.71. The two figures are different instruments at different times, so the small gap in daily change is not a discrepancy to be averaged. On the Dalian Commodity Exchange, the most-traded January 2027 contract (I2701) closed at 684 yuan a tonne, down 0.07%.

Pollution curbs and softer hot-metal output

The main driver was environmental policy. Authorities in northern China, including the steelmaking hubs of Tangshan and Handan in Hebei province, began emergency response measures on Monday because of forecast heavy air pollution. Such measures typically force mills to curb output, which lowers ore demand. The new restrictions mainly hit sintering machines, with a smaller effect on blast furnaces, and some mills had increased year-end maintenance.

The Demand backdrop was already soft. Average daily hot-metal output among Chinese steelmakers fell 0.5% week on week to 2.31 million tonnes as of 5 November, the fourth straight weekly fall and the lowest since late March. Hot-metal output is a common gauge of ore consumption.

Supply building at Chinese ports

On the Supply side, arrivals at major Chinese ports jumped 33.3% week on week to about 31.0 million tonnes in the week to 6 November, while global shipments fell 7.9%. Port stocks are expected to keep building. Imported ore stocks at 47 major ports stood at 172.89 million tonnes as of 29 October.

Prices have nonetheless held above the two-year lows seen in late October, when the Singapore benchmark briefly fell to US$89.25. Short covering and expected restocking before the Lunar New Year holiday helped a rebound in early November. One possible explanation for the current sideways trade is that seasonal restocking is offsetting weak steel demand, and prices are expected to move sideways in the near term.

How the majors are exposed

Rio Tinto (LSE:RIO; ASX:RIO) shipped 85.7 million tonnes from the Pilbara in the third quarter, up 2% year on year, and kept full-year Pilbara guidance at 323–338 million tonnes. Its Simandou project in Guinea reached an annualised rate of about 10 million tonnes a year, with a 60 million-tonne target for the second half of 2028. For LSE:RIO, Simandou's ramp-up adds Volume but also adds to seaborne supply, which could weigh on prices over time.

Fortescue (ASX:FMG), the most iron ore-dependent of the large Australian producers, shipped 46.8 million tonnes in its September quarter, 6% lower than a year earlier, and left FY27 guidance unchanged subject to negotiations with China Mineral Resources Group (CMRG), the state-backed buyer. China remains by far Fortescue's largest customer. Because Fortescue's ore is generally lower grade than 62% Fe, its realised prices also depend on grade discounts, not only on the benchmark.

BHP (ASX:BHP) is the largest Australian producer by Market Value and has iron ore operations in Western Australia, but copper is a growing share of its business. It concluded negotiations with CMRG in April and set FY27 iron ore guidance at 286–298 million tonnes. Mineral Resources (ASX:MIN) is a smaller, more leveraged producer whose Onslow project has lifted shipments, so changes in price may affect its margins more sharply.

In Canada, Champion Iron (ASX/TSX:CIA) produces high-grade concentrate in Quebec that typically earns a premium to 62% Fe, so its Revenue depends on the higher-grade benchmark and premiums as well. Labrador Iron Ore Royalty (TSX:LIF) is a royalty holder and Shareholder in Iron Ore Company of Canada, which is majority-owned by Rio Tinto (LSE:RIO); its income depends on IOC's sales volumes, pellet and concentrate prices and the Canadian dollar rather than its own operating costs. In the United States, Cleveland-Cliffs (NYSE:CLF) is an integrated steelmaker that largely supplies its own pellets, so seaborne prices affect it far less directly than steel prices do.

For producers, a lower iron ore price generally squeezes margins, but the effect depends on unit costs, freight rates, grade and lump premiums, contract pricing periods and the Australian dollar. Most large miners do not hedge iron ore heavily, so price moves usually pass through to revenue within months. Costs matter too: high fuel and freight costs linked to the Middle East conflict raised Mining and export costs in the June quarter, although with limited effect on output.

What could change the outlook

Prices could find support from pre-holiday restocking by Chinese mills, any policy stimulus aimed at construction or infrastructure, and supply disruptions such as weather at Australian or Brazilian ports. Downside risks include longer or wider pollution curbs, further falls in hot-metal output, rising port stocks and new seaborne supply from Simandou and other projects. The negotiations between CMRG and suppliers add uncertainty to pricing and sales.

What to watch next

Watch weekly hot-metal and port-stock data, the duration of the Hebei pollution measures, China's October activity data from the National Bureau of Statistics in mid-November, and China's monthly customs data on iron ore imports. Updates on CMRG negotiations and Simandou's first shipments through its port, which Rio Tinto (LSE:RIO) expects in the fourth quarter, are also relevant. Freight rates and diesel prices are also worth tracking, because they affect both delivered costs for Chinese buyers and miners' operating costs.