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Green steel just cleared a €1.4bn proof point

Surfaced by the GAPTIQ engineJune 25, 2026 · 5 min read

Steel is 7–9% of global CO2 and the hardest sector to abate. Stegra raising €1.4bn for hydrogen-based production is the signal that the capital wall, not the chemistry, is starting to crack.

7–9%Of global CO2 comes from steel: the hardest heavy industry to abate
€1.4bnRaised by Stegra to finish its hydrogen-based steel plant
95%Lower CO2 than a blast furnace on the hydrogen-DRI route: proven, not theoretical
The call, up front

The chemistry works. The question is who pays for the next ten.

Hydrogen-based direct-reduced iron (DRI, iron made with hydrogen instead of a coal-fired blast furnace) has been technically viable for years. The blocker was always capital: multi-billion-euro plants nobody would fund.

Stegra closing €1.4bn for green-hydrogen steel (the hydrogen made with renewable electricity) moves the question from can it work to who finances the next ten. Identical chemistry sits behind four flagship EU projects, and only Stegra cleared financing.

ArcelorMittal walked away from its German plant even with €1.3bn of state aid. The gap is the financing-and-offtake structure (lining up committed buyers and subsidies in advance), not the furnace.

The gap

The blast furnace is locked in by coal and by capital. Green hydrogen at industrial scale and price is the missing input, and the plants are too big for a single balance sheet. What’s stopping it is bankability: the offtake contracts and stacked subsidy that make a multi-billion-euro plant financeable. When a steelmaker turns down state aid because the business case is not strong enough, the wall is financing, not chemistry.

Exhibit 1Identical chemistry, four flagship projects: only Stegra cleared financing
Stegra, Boden, SE
2.5Mt · FUNDED
ThyssenKrupp, Duisburg, DE
2.5Mt · under review
Salzgitter SALCOS, DE
2Mt · phases postponed
ArcelorMittal, DE
3.5Mt · cancelled
So what

Capital aimed at proving DRI is solving a solved problem. The opening is the financing-and-offtake template that lets the next plant raise faster, and survive when subsidies wobble.

Source: Company filings (Stegra/CINEA, ThyssenKrupp, Salzgitter, ArcelorMittal); status per AIST, EUROMETAL, GMK Center, 2025–2026

Announced nameplate (rated maximum) hydrogen-DRI / green-steel capacity by project (Mt). Status, June 2025–June 2026: Stegra fully funded after a €1.4bn close; ThyssenKrupp's build is under viability review with its green-hydrogen tender (its call for hydrogen suppliers) paused; Salzgitter postponed later SALCOS phases by three years; ArcelorMittal cancelled its German DRI despite €1.3bn of committed state aid. Same furnace and chemistry across all four. Financing is the one thing that differed.

Why the capital, not the chemistry

Decarbonized primary steel (steel made from iron ore, not recycled scrap) needs three things to line up. Two are largely solved. The third (paying for it) is where the projects split.

Exhibit 2The chemistry was never the wall: the capital was
Decarbonized primary steel
Coal blast-furnace lock-inlegacy
Existing plants, money already spent
Green hydrogen supplytightening
Cost and availability at scale
Project bankabilityTHE OPENING
Buyer contracts + subsidies for a multi-billion build

Source: GAPTIQ engine, challenge decomposition

The arc to financed

Exhibit 3From pilot to financed, and the capital wall in between
  1. Aug 2021SSAB/HYBRIT delivers the world's first hydrogen-reduced fossil-free steel to Volvo: the route is proven
  2. Jan 2024H2 Green Steel (now Stegra) closes €4.2bn debt, ~€6.5bn in total: first large-scale green-steel financing
  3. 2025The bankability wall hits: ArcelorMittal cancels its €1.3bn German DRI; Salzgitter postpones phases three years
  4. Jun 2026Stegra closes a further €1.4bn: fully funded to completion where others stalled

Source: SSAB/HYBRIT; PR Newswire; EUROMETAL; GMK Center; AIST, 2021–2026

The move

The first mover isn’t a steelmaker. It’s whoever standardizes the offtake-and-subsidy package that takes the next plant from announcement to financial close (fully signed financing) in months, not years, and holds it together when a subsidy slips. Back the financing template and the green-steel offtake market, not another pilot.

Source: Stegra Closes €1.4 Billion Financing Round to Support Hydrogen-Based Green Steel Project, Association for Iron & Steel Technology, June 2026. Surfaced by the GAPTIQ engine.

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