Finland Parliament 4.2× hike in mining minerals tax (Act 1361/2025 amending Act 314/2023)

Mechanism

Act 314/2023 created Finland's first national mining-minerals tax, in force since 1 January 2024 at modest rates (0.6% ad valorem on metallic-ore content; €0.20/tonne on industrial minerals and other useful rock). HE 127/2025 / Act 1361/2025 is a fiscal-policy amendment that quadruples the value royalty and triples the tonnage royalty without changing the underlying excise architecture — same collection by Verohallinto (Tax Administration), same definitions of taxable mineral, same 80/20 state/municipality revenue split.

Iron is added to the list of taxable metals — material for Outokumpu's chromite-iron operations and any future iron-ore reactivation. The "side streams" exclusion (tailings or by-products that are re-utilised) is preserved subject to conditions, mitigating impact on circular-economy operators.

This is Finland's first IPTM-register entry. Filed despite Finland not being a target-country / not imposing an export control because the fiscal step is structurally industrial-policy: it changes the returns curve for European critical-minerals supply development at a time when Finland is the EU's most mining-friendly Nordic jurisdiction (active operators include Terrafame's bioheap nickel- cobalt operation at Sotkamo, Boliden Kevitsa, Outokumpu's chromite mine at Kemi, and Sibanye-Stillwater's Keliber lithium project).

Downstream implications

• Margin compression on Finnish-domiciled nickel, copper and cobalt

producers — affects supply economics of EU Critical Raw Materials Act strategic-project candidates physically located in Finland.

• Raises competitiveness of Swedish (post-uranium-repeal) and Norwegian

mining venues for marginal European critical-minerals projects.

• Fiscal precedent: Finland follows Australia's (royalty) and Chile's

(lithium-specific) value-based fiscal tightenings on mining, but is the first EU member state to apply a value royalty on a broad metals basket at non-trivial rate (2.5%) outside legacy concession-rent regimes. Watch for Sweden / Germany / Portugal precedent effects.

• Revenue capture: at current Finnish mining-metal output the 4.2×

rate hike implies an order-of-magnitude increase in mining-minerals tax receipts from ~€20-25m to ~€85-100m/year (analyst estimate pending official Finance Ministry projection).

Open questions

• Will the EU Critical Raw Materials Act strategic-project status of

Keliber, Terrafame and other FI candidates trigger any offset (CRMA Art. 13 procurement-side incentives, EIB financing) sufficient to neutralise the marginal-tax impact?

• Does the iron-inclusion materially affect Outokumpu's Kemi chromite

operation (chromite contains iron oxide — definitional question pending Verohallinto guidance).

• Are there transitional provisions for ore mined before 1 Jan 2026

but processed/refined after that date? HE 127/2025 detailed text needs review.