Iron Ore Trading Explained: Grades, Markets, and Pricing

Iron ore is the most traded dry bulk commodity by volume, with over 1.5 billion tonnes shipped internationally each year. It is the essential raw material for blast furnace steelmaking, which produces roughly 70% of global steel. China alone imports over 1 billion tonnes annually, representing approximately 70% of the global seaborne iron ore market.

The iron ore market is dominated by four major producers: Vale (Brazil), BHP (Australia), Rio Tinto (Australia), and Fortescue (Australia). Together, these companies account for roughly 60% of global seaborne supply. The concentration of supply and demand (China as dominant buyer) creates a market that is sensitive to both Australian weather events and Chinese steel policy.

Iron ore quality is primarily defined by its iron (Fe) content, with 62% Fe being the benchmark grade. Higher-grade ores (65%+ Fe) command a premium because they produce steel more efficiently with lower emissions. Lower-grade ores (58% Fe and below) trade at a discount. Other important specifications include silica, alumina, phosphorus content, and moisture levels.

Major product types include iron ore fines (the most traded form, used in sintering), iron ore lump (used directly in blast furnaces without sintering), pellets (processed into spherical balls for direct use), and concentrate (beneficiated ore with higher Fe content). Each product has distinct specifications and pricing.

Iron ore pricing has evolved from annual benchmark negotiations to a spot-based index system. The Platts IODEX 62% Fe CFR China index is the most widely used benchmark. SGX iron ore futures (based on the Platts index) provide price discovery and hedging tools. The Dalian Commodity Exchange (DCE) in China also hosts actively traded iron ore futures.

Physical iron ore trades at the benchmark index plus or minus adjustments for grade (Fe content premium/discount), impurity penalties, product type (fines vs. lump vs. pellets), and delivery location. The 65%/62% Fe spread and the 62%/58% Fe spread fluctuate based on Chinese steel mill profitability and environmental policies.

The dominant trade flow is from Australia and Brazil to China, with Australia having a freight advantage (10-14 day transit vs. 35-45 days from Brazil). Iron ore is shipped in Capesize vessels (170,000-210,000 DWT) that are too large for most canals, routing around the Cape of Good Hope from Brazil or directly across the Indian Ocean from Australia.

Loading ports include Port Hedland and Dampier (Australia) and Ponta da Madeira (Brazil). Discharge ports in China include Qingdao, Rizhao, Caofeidian, and Zhoushan. Quality inspection at both loading and discharge ports is standard, with independent surveyors like SGS and Bureau Veritas verifying weight, moisture, and chemical composition.