Metals & Smelting

Metlen Energy & Metals sustainability score: 27/100

Metlen Energy & Metals is a Greek conglomerate operating primary aluminium smelting, bauxite mining, alumina refining, and thermal power generation across Europe and globally.

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27/100
Significant gaps-8 since last review
Pending reviewMixed evidence· 13 src

Metlen operates 2GW+ of gas generation while adding 826MW of new fossil capacity in 2024, undermining its -30% by 2030 absolute emissions target. Emissions disclosures rely on intensity metrics rather than absolute data. Third-party verified operations (EU ETS, ASI certification) exist, but public absolute figures remain opaque.

Metlen Energy & Metals scores 27/100 (Significant gaps) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified August 2026.

That places Metlen Energy & Metals joint 683rd of 847 companies scored, and it is the only Metals & Smelting company scored so far.

At a glance

Metlen Energy & Metals's strongest and weakest areas

Strongest
  • Its record on controversies8/10
  • How openly it reports6/10
Weakest
  • Whether its emissions are falling3/10
  • Its climate targets3/10
See all ten questions ↓
Metlen Energy & Metals in context

How does Metlen Energy & Metals compare with other metals & smelting companies?

Metlen Energy & Metals stands alone in this category.

Industry comparison data unavailable.

What would raise this score

Where Metlen Energy & Metals lost the most points

Its three lowest-scoring questions, and what the evidence didn't show.

  1. Whether its emissions are falling3/10

    Primary 2023 metric is intensity (>80% per million net profits), not absolute tonnes.

  2. Its climate targets3/10

    SBTi committed November 2021; no validated near-term or net-zero targets found in public record.

  3. Emissions from its supply chain4/10

    No third-party verification of Scope 3 found.

A score changes when the evidence does. We use new published evidence at the next rescore. Evidence that isn't public can count through an evidence review.

For Metlen Energy & Metals

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The ten questions

What is Metlen Energy & Metals doing well, and where does it fall short?

Strongest on Controversies & Red Flags and Transparency & Accountability (8/10, 6/10). Weakest on Emissions Trajectory and Targets & Commitments (3/10, 3/10).

How this score has moved

Has Metlen Energy & Metals's score changed?

Metlen Energy & Metals's score has moved from 35 to 27 across 3 recorded reviews, down 8 points.

0255075100352 August 20262718 August 20262718 August 2026
  1. 27 → 2718 August 2026

    Direction-blind emissions retrieval (agent-fed): basis not-retrieved->disclosed, scale 0.7->0.7, score 27->27. Primary: Metlen 2025 Integrated Annual Report — ESRS E1-6 GHG table.

  2. 35 → 27-818 August 2026

    Re-classified Energy Supply / Utilities[55] -> Metals & Smelting[20]; score 35->27

  3. Scored 352 August 2026

    Initial public score 35 (publish-draft)

Method and evidence

How we worked this out

The formula and all 14 sources.

About Metlen Energy & Metals

Metlen Energy & Metals is a Greek conglomerate operating primary aluminium smelting, bauxite mining, alumina refining, and thermal power generation across Europe and globally. Listed on the Athens and London stock exchanges, it manages over 2GW of gas-fired capacity and ~1.4GW of renewables under development. One of Europe's largest bauxite producers.

Founded
—
Headquarters
Greece
Employees
~5,442 (2022)
Annual revenue
~€5.68B
Company website ↗
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