Met Coal vs Thermal Coal: Pricing and Quality Benchmarks
Compare metallurgical and thermal coal, from quality benchmarks and pricing to their different roles in steelmaking and energy markets.
Educational analysis for professional use. This guide is not investment advice or a recommendation to buy or sell any security, and it is not personalised.
Two Coals, Two Markets
Metallurgical coal and thermal coal come out of the ground looking similar and trade in markets that have almost nothing to do with each other. Met coal (coking coal) is a steel raw material bought by blast-furnace steelmakers and priced off a quality benchmark, premium low-vol coal loaded free-on-board (FOB) at Australian ports; demand rises and falls with blast-furnace steel production. Thermal coal is sold to power stations for its energy content, and demand there tracks electricity generation and the price of competing fuels, gas above all.
End market is what separates the two equities. A generalist screen that lumps “coal” together will miss it, because the two prices can diverge for years. A gas glut that crushes thermal coal does nothing to a blast furnace’s appetite for coke; a Queensland cyclone that spikes the met coal benchmark is irrelevant to a German utility. Analysing a met coal producer like Warrior Met Coal as an energy stock gets both the demand driver and the price benchmark wrong.
Why Blast Furnaces Need Coking Coal
Coking coal exists as a separate market because blast-furnace chemistry has no substitute for coke at scale. Coking coal is baked in ovens without oxygen to drive off the volatile matter, leaving coke: nearly pure carbon with a strong, porous structure. Inside the blast furnace, coke does two jobs at once. Chemically, it is the reductant that strips oxygen from iron ore to make liquid iron. Physically, it is the support structure that holds the column of ore and flux open so hot gases can flow through it. Thermal coal only has to burn; coke has to carry weight at 1,500 degrees. That second, structural job is why a power-station coal cannot simply be swapped in.
The scale of that demand is what makes met coal a major seaborne trade. Roughly seven tonnes in every ten of the world’s crude steel still comes off the blast-furnace route, and that route eats about 780 kg of metallurgical coal for every tonne of steel it makes, alongside 1,370 kg of iron ore (worldsteel industry averages). Integrated producers such as ArcelorMittal buy met coal and iron ore as the two halves of their raw-material basket; the iron ore cost curve is the companion market to this one.
Scrap-fed electric arc furnaces don’t use coke at all, which is why the EAF steel spread is built from scrap rather than ore and coal. Met coal demand is specifically a bet on the blast-furnace share of world steelmaking, not on steel in general.
The Benchmark: PLV FOB Australia
Seaborne met coal prices off Premium Low-Vol hard coking coal, free-on-board Australia, because Queensland is the dominant supplier of top-quality coking coal to the seaborne market and the premium low-vol grade is the quality ceiling everything else is measured against. When analysts say “the coking coal price”, this is the mark they mean.
The mark is volatile, which is the reason a valuation should not lean on today’s print. PLV futures traded near US$246/t in June 2026; our long-term planning price for the same coal is US$200/t. Value a producer on something like the second number and use the first for context, because a single spot level tells you where the cycle is, not what a mine is worth.
Thermal coal has its own, entirely separate set of marks, with different reference prices for the Pacific and Atlantic basins. They work differently too. A thermal coal is bought for its calorific value, the heat it releases per kilogram, so marks are quoted at a stated energy content and a weaker coal sells for roughly its energy shortfall: on energy alone a 5,500 kcal/kg cargo is worth about nine-tenths of a 6,000 kcal/kg one. That makes thermal coals near-substitutes priced by arithmetic. Met coal quality is not reducible to one number, which is why the market needed a benchmark grade in the first place.
The Quality Ladder: PLV vs High Vol A
Not every tonne of coking coal earns the benchmark price. Met coal quality is set by its coking properties: volatile matter, the strength of the resulting coke, ash and sulphur content. Premium low-vol sits at the top of the ladder. High Vol A is a genuine coking coal, but with higher volatile matter it makes weaker coke, so it prices at a discount to the PLV index. The discount is not fixed; it widens and narrows with the market.
Warrior Met Coal’s FY2025 numbers show how the ladder works in practice. Its sales mix was 54% PLV and 46% High Vol A, and that blend achieved a gross realisation of roughly 80% of the PLV FOB Australia index. The premium product anchors the realisation near the benchmark; the High Vol A tonnes pull the blended average down. A producer’s position on the quality ladder is structural, because it comes from the geology of its seams, and it sets the realisation percentage every revenue forecast has to start from. The percentage itself is not a constant, though: it moves with the sales mix each quarter and with the discount High Vol A happens to be trading at, so it is Warrior’s number rather than the industry’s.
Gross Realisation vs Net Realised Price
The 80% figure is a gross realisation against the index. It is not the price the company books. Two further deductions sit between the gross price and reported revenue per ton, and treating the gross figure as revenue overstates the top line on every ton sold.
| Step | Warrior Met Coal, FY2025 |
|---|---|
| Benchmark | PLV FOB Australia index (quoted in metric tonnes) |
| Quality mix | 54% PLV / 46% High Vol A blends to ~80% gross realisation of the index |
| Freight and selling deductions | Taken off the gross price to reach a net FOB-port figure |
| Net realised price | US$132.62 per short ton |
Source: Warrior Met Coal Q4/FY2025 earnings release and investor presentation.
There is a unit trap buried in that table. The benchmark is quoted in US dollars per metric tonne; Warrior, like the other US producers, reports in short tons. A short ton is about 91% of a metric tonne, so a per-short-ton price is not comparable to a per-tonne index level until one of them has been converted. Keep each figure in the unit it was reported in, and convert once, deliberately, at the point where the two have to meet.
The Margin Build
A met coal pure play earns the gap between its net realised price and its cash cost, multiplied by tons sold. Everything above (benchmark, quality mix, freight) sets the first number; geology and logistics set the second.
Warrior’s FY2025 build, at what was a cyclical low for met coal prices:
| FY2025 | US$/short ton |
|---|---|
| Average net realised price | 132.62 |
| Cash cost of sales (FOB port) | (101.30) |
| Margin per ton | 31.32 |
Do not expect that US$31.32 to survive intact to the bottom line. It is the margin over the cost of getting coal onto a ship; head office, selling costs and everything else still come out of it. On 9.6M short tons sold (10.2M st produced) the company reported adjusted EBITDA of US$256.5M, which is about US$27 per ton, and finished FY2025 with roughly US$105M of net cash. The point of the worked numbers is the shape, not the level: a low-cost producer stayed profitable and net cash at the bottom of the cycle.
Run the same build at the US$200/t planning price and the trap in the units shows up. Eighty per cent of $200 is $160 per metric tonne, which is about $145 per short ton before freight and selling deductions, not the $99 you get by subtracting a short-ton cash cost from a metric-tonne benchmark. Even after those deductions the margin against a cash cost near $101/st is a good deal wider than FY2025’s $31.32, and that recovered margin, not the trough one, is what a through-cycle earnings estimate is built on. It is the calculation the sector primer works through in full.
Blue Creek: The Growth Case
Volume is the other half of a met coal producer’s earnings, and Warrior’s Blue Creek mine is the sector’s cleanest example of it. The mine carries a nameplate capacity of 6.0M short tons per year, and longwall commissioning began in October 2025, eight months ahead of plan and on budget. At nameplate it would take group capacity to roughly 14-15M st/yr, against the 9.6M st sold in FY2025.
Nameplate is a ceiling, not a forecast. Ramp tonnes arrive on a commissioning schedule at higher unit cost than steady state, and FY2025 already shows a 0.6M st gap between what Warrior produced and what it sold. Price a ramp year by year; do not multiply capacity by last year’s margin.
What to Take Into a Model
A met coal model needs three inputs: the planning price for the PLV benchmark (US$200/t here), the gross realisation percentage implied by the quality mix, and the cash cost per ton. Thermal coal is not one of them. The Steel & Bulk Commodities Sector Primer builds the full framework: the met coal margin build alongside the iron ore cost curve and the steel spread, with the through-cycle valuation method that ties the three marks together.
Steel & Bulk Commodities Primer
Met coal is priced off steel demand while thermal follows power burn. The primer anchors a mine's revenue to the met benchmark.
The Excel model is the primer's three worked DCFs live across 13 sheets: change the mid-cycle spread, utilisation or discount rate and the valuation moves.
Frequently Asked Questions
- What is the difference between metallurgical (coking) coal and thermal coal?
- Metallurgical coal is converted into coke, which blast furnaces need both as the chemical reductant that strips oxygen from iron ore and as the physical support structure inside the furnace. It is a steel raw material, priced off the Premium Low-Vol (PLV) FOB Australia benchmark, and its demand tracks blast-furnace steel production. Thermal coal is burned in power stations for its energy content and priced accordingly. Because the two serve different end markets, their prices can diverge for years at a time.
- What is the PLV FOB Australia coking coal benchmark?
- PLV stands for Premium Low-Volatile hard coking coal, the highest-quality grade of metallurgical coal, assessed free-on-board at Australian ports. It is the reference mark for the seaborne met coal trade: lower-quality coking coals such as High Vol A price as a discount to it. Futures traded near US$246/t in June 2026, while the long-term planning price this guide uses for through-cycle work is US$200/t.
- Why does Warrior Met Coal realise less than the PLV benchmark price?
- Two separate deductions sit between the index and the reported price. First, quality mix: Warrior's FY2025 sales were 54% PLV and 46% High Vol A, which blended to a gross realisation of roughly 80% of the PLV FOB Australia index. Second, freight and selling deductions take the gross price down to a net realised price, US$132.62 per short ton in FY2025. The benchmark is also quoted in metric tonnes while US producers report short tons, so the two figures are never directly comparable without a unit conversion.