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Algoma Steel Group Inc.

mining-metals·🇨🇦 Canada·Ownership re-checked 2026-09-12 · exposure claims not re-checked since fill

Algoma Steel Group Inc. (NASDAQ: ASTL) is a Canadian steelmaker based in Sault Ste. Marie, Ontario, producing hot- and cold-rolled steel sheet and plate for the automotive, construction, energy, defence, and manufacturing sectors.

Supply-risk report · CRMA Art. 20–25 assessment Policy outlook · threats, impact & strategy

/ 100

High

Binding chokepoint

manganese 83

Controller

🇨🇳 CN 90%

Measures, 24m

11 · 0 total mentions

Scored exposures

3 materials

Its binding exposure, manganese, is controlled by CN at 90% of refined output.

Production footprint

1named sites with disclosed material dependencies

Sault Ste. Mariesteel sheet & plate — EAF steelmaking transition, Direct Strip Production Complex, Plate MillCA

View on the correlation map →

Corporate structure

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GLEIF (LEI 549300Q5EU337A1XCX27, ISSUED) reports no parent on file (parent_reported: false) -- searched 2026-08-31, no dossier-corpus parent match either, so parent_slug is not set. Algoma is a widely-held public company (NASDAQ: ASTL / TSX: ASTL); Maple Rock Capital Partners is a passive institutional investor (SEC Schedule 13G/A, not a 13D activist/control filing) and the largest reported holder, not a controlling parent. No other holder above 15.1% found in a web check.

Free float, subsidiaries & legal entitiesShow

Maple Rock Capital Partners Inc. + Xavier Majic (acting as one reporting group)15.1%

Material exposure

3scored materials

Every exposure is read as a buyer dependency; the top 3 are its binding chokepoints.

manganese🇨🇳 CN 83

vanadium🇨🇳 CN 75

niobium🇧🇷 BR 61

Policy measures, last 24 months

No actions in the register have named or swept this company in the last 24 months.

See all in the register →

If passed, would hit their inputs

19proposals matching this company's materials

African Union / AfDB — continental harmonisation of mining legislation toward a ban on unprocessed critical-mineral ore exports (Abidjan Ministerial Forum outcome) lowcobalt, copper, lithium, manganese, bauxite, graphite, rare-earths

Tanzania Critical & Strategic Minerals Strategy + statutory critical/strategic minerals LIST (Ministry of Minerals, Mavunde) — beneficiation-mandate licensing instrument🇹🇿 moderategraphite, nickel, rare-earths, lithium, niobium, cobalt, titanium, helium

Brazil PNMCE — Política Nacional de Minerais Críticos e Estratégicos (PL 2780/2024)🇧🇷 highlithium, niobium, rare-earths, copper, manganese, cobalt, graphite

3 more of 16Show

Gabon — Government Announcement: Ban on Crude Manganese Ore Exports from January 1, 2029🇬🇦 lowmanganese

EU CRMA Strategic Projects — Second Designation Round🇪🇺 moderatelithium, cobalt, rare-earths, manganese, silicon, nickel, platinum-group-metals

DRC Strategic Mineral Reclassification Decree — 6 new minerals (lithium, tantalum, niobium, tungsten, uranium, REEs) elevated to strategic tier, royalty 3.5%→10%🇨🇩 highlithium, tantalum, niobium, tungsten, uranium, rare-earths

Supplier alternatives

3of 3 exposures have a viable non-dominant substitute · avg lead 9mo

manganese🇨🇳 CN 90% → 🇿🇦 ZA6-12mo

vanadium🇨🇳 CN 79% → 🇧🇷 BR6-12mo

niobium🇧🇷 BR 89% → 🇨🇦 CA6-12mo

Traders & procurement channels

1named-material houses of 3 tracked

Lipmann WaltonHenley-on-Thames, UKmanganese, vanadium

TraxysLuxembourgbroad universe

Tradium GmbHFrankfurtbroad universe

Full channel directory →

No dated actions on record. Material exposures are company-researched, not yet re-checked; scores are footprint-adjusted and buyer-relative.

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Algoma Steel Group Inc.

mining-metals·🇨🇦 Canada·Ownership re-checked 2026-09-12 · exposure claims not re-checked since fill