Analysis

Superfund Dispute Helped Lead US Magnesium To Ch. 11

By Ben Zigterman · September 23, 2025, 7:54 PM EDT

A long-running dispute with state and federal regulators over cleanup of a Superfund site next to Utah's Great Salt Lake was a major contributor to U.S. Magnesium's Chapter 11 filing earlier...

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Bankruptcy Scorecard

Summary

US Magnesium LLC, once North America's largest producer of primary magnesium, filed for Chapter 11 protection in Delaware bankruptcy court with up to $500 million of debt.

Case Number

1:25-bk-11696

Judge

Brendan L. Shannon

Venue

U.S. Bankruptcy Court for the District of Delaware

Capital Structure

Total Liabilities:

$100 million to $500 million

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Case Information

Case Title

US Magnesium LLC

Case Number

1:25-bk-11696

Court

Delaware

Nature of Suit

Date Filed

September 10, 2025