Source: US Magnesium Chapter 11 Bankruptcy and Asset Sale
source confidence: Medium status: Useful updated 2026-08-11
Summary
Coverage of US Magnesium LLC's September 2025 Chapter 11 filing in Delaware, its EPA Superfund status, creditor claims, and the proposed asset auction — published December 9, 2025. This capture predates any January 2026 auction result.
Useful Claims
- US Magnesium's Rowley plant sits on the western shore of the Great Salt Lake in Tooele County; this article does not state when production began — per Official Website: US Magnesium, magnesium has been produced at the site since 1972.
- The company declared Chapter 11 bankruptcy in Delaware in September 2025; this article does not give the exact filing date (a Sept. 15 auction proposal came days after filing). Court filings cited in the piece reference $67 million in debt owed to Wells Fargo.
- This news capture does not establish Renco's reported decade-long funding support or the associated dollar amount.
- The site has been on the EPA's National Priorities List (Superfund) since 2009; a 2021 consent decree resolved 20+ years of RCRA litigation and required a barrier wall and financial assurance. EPA notified the company of a consent-decree violation in July 2024.
- This December 2025 capture predates the auction and does not support the reported successful bidder or cash-offer amount; it documents LiMag Holdings as the proposed bidder at that time.
- Court filings reference development of lithium carbonate production from magnesium-production tailings.
Verbatim
"US Magnesium’s Rowley plant, which covers an area roughly the same size as South Salt Lake, produced magnesium metal by concentrating water from the Great Salt Lake in evaporation ponds in a process that created chlorine and other hazardous byproducts." — Salt Lake Tribune article, "Millions in debt" section
"It does not include $67 million in debt owed to Wells Fargo, or $464,732 the Division of Forestry, Fire and State Lands claims the company owes in unpaid royalties from Great Salt Lake mineral extraction." — Salt Lake Tribune article, "Millions in debt" section
"On Sept. 15, days after it filed for Chapter 11 bankruptcy in Delaware, US Magnesium proposed auctioning off its assets." — Salt Lake Tribune article, bankruptcy proposal
"In 2009, the EPA listed historical pollution under MagCorp’s operation on the National Priorities List and declared it a Superfund site." — Salt Lake Tribune article, cleanup history
"The EPA notified the company it had violated the consent decree in July 2024." — Salt Lake Tribune article, cleanup history
Reliability Notes
The January 2026 auction result and reported bid postdate this December 2025 capture and require a later court or state record. The capture also does not substantiate the exact September filing date, Renco's asserted decade-long funding total, or the production start year.
Mix of primary court documents (high reliability for filing facts) and newspaper coverage (reliable but evolving). The bankruptcy and sale are an active, developing situation as of mid-2026; ownership, the buyer of record, and whether magnesium production continues should all be re-verified before relying on this page for employment or supply-chain decisions. The environmental record is well-documented through EPA primary sources.