Sector Rankings

Most Sustainable Metals & Smelting Companies 2026

1 Metals & Smelting companies ranked 0–100 on real environmental impact using SINK's open, physics-first formula.

1
Companies ranked
27
Sector average
27
Sector best (Metlen Energy & Metals)
Frequently asked

Metals & Smelting sustainability, answered.

Which Metals & Smelting company is the most sustainable?

Metlen Energy & Metals is the highest-scoring Metals & Smelting company on SINK with a score of 27/100 (Significant gaps).

What is the average sustainability score for Metals & Smelting companies?

The average SINK score across 1 Metals & Smelting companies is 27/100. The global average across all scored companies is 38/100.

How does SINK rate Metals & Smelting companies?

SINK scores Metals & Smelting companies on 10 questions using public data: Scope 1/2/3 carbon footprint, energy source, nature and biodiversity, resource use, water impact, emissions trajectory, science-based targets, transparency, and major controversies. The formula adjusts for the industry's inherent environmental footprint and company scale.

Which Metals & Smelting company has the worst sustainability score?

Metlen Energy & Metals has the lowest SINK score among Metals & Smelting companies at 27/100 (Significant gaps).

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