Magnitogorsk Iron & Steel Works
MHQ
2
exclusion reasons
1 theme
This page is part of our public exclusion list — a transparency tool that shows which companies we screen out and why. It is not investment advice, and it is not an accusation. But it is subject to change as our understanding of the facts evolves.
Magnitogorsk Iron & Steel Works (MMK) is a major Russian steel producer with no credible, independently verified climate transition plan. The company operates in a jurisdiction with weak climate regulation and has not set science-based targets aligned with the Paris Agreement. Its reported climate management efforts lack the specificity, transparency, and ambition required to demonstrate a genuine commitment to decarbonization, placing it in the lowest performance band of climate transition assessments.
While specific evidence of active climate policy obstruction is limited in the gathered materials, the company’s operational context is significant. MMK is implicated in supplying materials for military hardware used in the conflict in Ukraine, according to a 2025 report. This association with a high-intensity conflict zone further complicates any assessment of its environmental governance and long-term sustainability claims. The absence of a robust, public-facing decarbonization strategy, coupled with its involvement in conflict-linked supply chains, demonstrates a fundamental misalignment with climate transition pathways.
Magnitogorsk Iron & Steel Works (MMK) is a major integrated steel producer whose operations have resulted in extensive, documented environmental contamination. The company’s primary production complex in Magnitogorsk has historically been a significant source of industrial pollution, releasing an estimated 650,000 tons of industrial waste annually, including 68 toxic chemicals, which contaminated approximately 4,000 square miles of surrounding land and waterways in Russia.
The environmental damage stems from the full production cycle, from extraction and primary transformation to waste disposal. Spoil heaps from mining tailings and slag from smelting operations have contributed to toxic metal contamination of nearby soil. While the company has implemented an energy management system that yielded significant cost savings, there is no public evidence of a comprehensive remediation plan for the legacy pollution or the scale of ongoing ecological damage caused by its core steelmaking activities.
Research Sources
2 organizations
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Companies appear on our exclusion list based on our investment judgment — not because they've done anything illegal. This is a difference of values and opinion, not an accusation of wrongdoing. Exclusion does not constitute a recommendation against investing in any company, and absence from the list does not constitute a recommendation to invest.
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