Iron Ore Price Benchmarks and Grades

Iron ore is the world’s most traded commodity by tonnage, but unlike oil or gold, it has no single global price. Instead, prices are set by reference benchmarks tied to specific ore grades, iron content (Fe %), moisture levels, impurity thresholds, and shipping terms. The most common benchmark—62% Fe CFR China—represents high-grade lump ore delivered to Chinese ports, with prices quoted on exchanges like the Singapore Exchange and used as the reference point for 95% of global iron ore trades. Miners, steelmakers, and traders navigate a complex matrix of grade adjustments, penalty clauses for impurities, and location-based cost-of-freight premiums to determine what price they actually pay or receive. Understanding these benchmarks is essential for anyone analyzing mining companies, steel mills, or commodity markets.

The 62% Fe CFR China standard

The benchmark that dominates global iron ore trading is 62% Fe CFR China. This describes ore that (a) contains 62% iron by weight, (b) is in lump form (not fines), (c) is delivered to Chinese ports on a “cost and freight” basis—meaning the seller pays shipping. The buyer accepts the ore at the Chinese port without further freight liability.

This benchmark emerged because China is the world’s largest iron ore consumer, importing roughly 70% of traded seaborne ore. Steelmakers in China need a standard specification to negotiate contracts efficiently, and miners have organized their production around delivering ore that meets or approaches this standard. A mining company in Australia shipping ore to Japan or South Korea still prices on the China benchmark, then applies adjustments for location and quality.

The 62% Fe specification is the “medium” grade in the index family. Higher-grade ore (65% Fe) commands a premium because less ore is needed to produce the same amount of steel and fewer impurities must be removed. Lower-grade ore (58% Fe) trades at a discount. Some miners produce ore below 58% Fe, but at steep discounts or with their own captive steelmaking operations, as the logistics and impurity costs make export economically marginal.

Grade adjustments and impurity penalties

A miner whose ore contains 60% Fe rather than 62% Fe does not receive 62% of the benchmark price; instead, the price is discounted by a matrix of adjustments. A simplified adjustment schedule might look like this:

• For each 0.1% of Fe below 62%, subtract $0.60 per tonne from the benchmark price.
• For each 0.1% of silica above a threshold (e.g., 3%), subtract $0.50 per tonne.
• For each 0.1% of alumina above a threshold (e.g., 2%), subtract $0.30 per tonne.
• For each 0.1% of phosphorus above a threshold (e.g., 0.10%), subtract $1.00 per tonne.

These adjustment penalties reflect the steelmaker’s cost to remove impurities during smelting. Silica and alumina form slag, which must be disposed of; phosphorus embrittles steel and must be carefully managed. A high-phosphorus ore is sharply penalized. Low-phosphorus ore from some Australian mines commands a premium.

A miner in Brazil or India producing 55% Fe ore with elevated silica might realize a price 20–30% below the benchmark if their ore does not meet the specification and cannot be concentrated economically.

Moisture and shipping cost

Iron ore is typically extracted as damp lumps and sometimes fine powder. Water in the ore adds weight without adding iron, so shippers and steelmakers penalize moisture. Ore is usually quoted on a “free on board” (FOB) or “cost and freight” basis, and moisture adjustments account for the fact that dried ore delivers more Fe per tonne.

The CFR China benchmark already includes the cost of freight from the mine port to Chinese ports (approximately $10–$20 per tonne depending on distance and current shipping rates). A miner in Brazil faces a longer voyage than a miner in Australia; Brazil ore is quoted at an FOB basis, and the buyer pays freight, or the price is adjusted downward to account for the longer haul. Iron ore shipped to other destinations (Japan, South Korea, Europe) may trade at FOB or at a CFR adjusted for that destination’s freight premium.

Shipping costs are volatile and add a significant term structure to ore pricing. In periods of high dry-bulk shipping rates, the CFR-to-FOB spread widens, and ore prices to distant ports fall relative to Chinese prices even if the benchmark itself is unchanged.

Quarterly index contracts and spot trading

Iron ore is traded in multiple ways. Long-term contracts between major miners (Rio Tinto, BHP, Vale) and steelmakers are often settled on a quarterly index basis, where the price is set by the average of published benchmarks (such as the China Iron Ore Price Index or Platts IODEX 62% Fe) during the contract quarter. This reduces immediate price discovery but provides stability for planning and capital allocation.

Spot trading on the Singapore Exchange and smaller exchanges offers price discovery for ore changing hands outside long-term agreements. Spot prices tend to be more volatile and reflect current supply-demand imbalances. A sudden spike in Chinese steel production can cause spot ore prices to jump, while long-term contract prices remain sticky until the next quarterly settlement.

Index prices published by data providers like Platts, Steel Index, and SBB (Steel Business Briefing) are derived from transactions and broker quotes, not from a centralized exchange. This creates some opacity around exactly how much ore is trading at the published prices versus how much is estimated by survey.

Realized prices and the miner’s economics

What a miner actually receives is the benchmark price, adjusted for grade and freight, minus any port fees, handling costs, or marketing margins to the broker or trader. A large miner selling through a major bank or commodities trader may net 1–2% less than the published index; a miner selling directly to a steelmaker at a long-term contract may avoid this spread.

For a miner with 60 million tonnes of annual ore production averaging 55% Fe and 3.5% silica, selling on the benchmark minus grade adjustments, the realized price can swing $200–$400 per tonne ($12–$24 billion in annual revenue) based purely on changes in the benchmark and grade volatility. This pricing sensitivity explains why mining companies spend heavily on ore concentration and upgrading to reduce impurities and improve their realized price.

Premium ore and captive markets

Very high-grade ore (65–66% Fe, very low impurities) commands a significant premium and is often sold to specialty steelmakers or used in direct reduction steelmaking processes that require higher grade. Some mines in Australia and Africa are positioned to supply this segment. Similarly, ore with low phosphorus is valued premium by Japanese and European steelmakers, whose product specifications demand it.

At the other end, low-grade ore is often mined by steelmakers as captive supply, integrated into their own blast furnaces without trading hands. This ore never appears in the benchmark and is priced internally to the steelmaker’s advantage.

Futures and hedging

Iron ore futures on the Dalian Commodity Exchange (DCE, in China) and the Singapore Exchange provide liquidity for hedging and speculation. These contracts are cash-settled against published indices and have become increasingly important as a price discovery mechanism, though the basis between futures and spot can be volatile, especially during supply disruptions or government policy changes in China.

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