How to Connect Falling Iron Ore Prices to Steelmakers’ Profits
Understand how steelmaking routes, raw-material mixes, and inventory lags link iron ore prices to steel costs. Compare unit margins using steel selling prices alongside other input costs.
Iron ore is an important steelmaking input, but its price changes do not alter a steelmaker’s total costs by the same percentage. Blast furnaces and electric arc furnaces use different raw-material mixes, and coking coal, steel scrap, electricity, and transportation costs also matter. Compare declines in raw-material prices with declines in product selling prices to assess margin changes.
Map inputs by production process
USGS describes iron ore as a major source of iron for the steel industry, while worldsteel distinguishes steelmaking routes and their inputs. Break down the company’s production capacity by process to identify the share directly exposed to iron ore. Do not apply blast-furnace iron ore sensitivity to processes that primarily use steel scrap and electricity. Raw-material and product mixes can vary even within an integrated steelworks. If the group also owns mining operations, lower raw-material prices can reduce steelmaking costs while having the opposite effect on mining profits.
Align ore grade and transportation terms before estimating costs
Iron ore benchmarks specify iron content, impurities, forms such as fines, lump ore, or pellets, and port delivery terms. Check whether a lower price simply reflects lower quality. Begin cost calculations by multiplying the actual input quantity used to make 1 tonne of product by the change in unit price. Treating 1 tonne of iron ore as equivalent to 1 tonne of crude steel overlooks the material conversion process. If inventory remains between purchase and consumption, spot price changes enter costs in later quarters, so record purchase prices separately from the prices of materials consumed.
Compare product prices with coking coal costs as well
Even if iron ore becomes cheaper, profit per tonne can fall if selling prices for hot-rolled steel or other products decline more. Coking coal and electricity costs may rise, or lower utilization may increase the fixed-cost burden. Specify that spreads calculated from market benchmarks are approximations that omit logistics, processing, and product mix. If a company reports a higher share of premium steel grades, check volumes and additional processing costs as well as average selling prices. Even confirmed cost savings may not increase total profit if weaker demand reduces sales volumes.
Worked example
Hypothetical example: Assume 1.5 tonnes of iron ore are used per 1 tonne of crude steel. If iron ore falls from $120 to $100 per tonne, iron ore costs fall by $30, from $180 to $150. However, if steel selling prices fall by $40 per tonne and all other conditions remain unchanged, the unit margin deteriorates by $10. The input quantity and raw-material mix are calculation assumptions rather than actual operating figures; freight, exchange rates, and inventory lags are excluded.
What to check
- Have you separated the company’s blast-furnace and electric-arc-furnace production shares?
- Have you aligned iron content, ore form, and transportation terms?
- Have you distinguished iron ore tonnes from crude steel tonnes when applying input quantities?
- Have you compared product selling prices alongside coking coal and electricity costs?
Sources and primary materials
This is educational material about research methods. For an actual company decision, verify the filings and primary sources for the relevant period.