What US Magnesium does

US Magnesium LLC is a privately-held mining and metallurgical company founded in 1972 and headquartered in Salt Lake City, Utah. It operated as the sole primary magnesium producer in the United States and the largest in North America, with a nameplate capacity of 63,500 metric tons per year of primary magnesium at its integrated Rowley plant on the western edge of the Great Salt Lake. The company also produced 9,000 metric tons per year of lithium carbonate and an array of chemical co-products including calcium chloride, liquid chlorine, ferric chloride, hydrochloric acid, magnesium chloride, and sodium chloride.

The core technology relies on harvesting magnesium chloride brine from the Great Salt Lake and concentrating it through approximately 100 square miles of solar evaporation ponds from 0.5% to 9.0% magnesium by weight, followed by magnesium electrolysis. Solar energy provides approximately 90% of total energy input, making the operation one of the largest industrial solar energy users in the world and avoiding an estimated 10 million tons of CO2 emissions annually. The integrated facility produces pure magnesium (99.80% and 99.97% grades), alloy magnesium (AZ91D, AM50A, AM60B, AZ91E), and the chemical co-product portfolio described above.

US Magnesium generated revenue through direct B2B enterprise sales to automotive, aerospace, defense, electronics, water treatment, and chemical manufacturing customers, with global distribution via truck and rail access from the Rowley facility. The company also provided technical support and recycling services including on-site training, process audits, and laboratory analysis. In September 2025 the company filed for Chapter 11 bankruptcy following catastrophic equipment failure and a collapse in lithium market prices, and in March 2026 was acquired by the State of Utah for $30 million, primarily to reclaim 65,000 to 80,000 acre-feet of Great Salt Lake water rights.

Name

US Magnesium

Legal name

US Magnesium LLC

Website

https://usmagnesium.com

Company type

Private

Founded year

1972

Operating status

Acquired

Headcount range

251–500 employees

Short description

US Magnesium was the sole U.S. primary magnesium producer, operating an integrated 63,500 metric ton-per-year facility on the Great Salt Lake since 1972, serving automotive, aerospace, defense, and chemical customers. The company filed Chapter 11 bankruptcy in 2025 and was acquired by Utah for $30 million in 2026.

Ownership category

akta.pro rank

Product category

Primary Magnesium Production

NAICS

Ground or Treated Mineral and Earth Manufacturing (327992), All Other Nonmetallic Mineral Product Manufacturing (32799)

SIC

Metal Mining (1000), Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400), Industrial Inorganic Chemicals (2810)

akta.pro primary industry

Magnesite & Magnesium Minerals Mining (IMAKAGAN)

akta.pro secondary industries

Magnesite & Magnesium Minerals (IMAEAFAL), Battery Raw Materials Mining & Refining (Lithium, Nickel, Cobalt, Manganese, Graphite) (EUAFABAA), Lithium Mining & Brine Extraction (IMAKAFAA), Battery-Grade Chemical Processing (LiOH/Li2CO3, Ni/Co Sulfates, Mn Sulfate) (IMAKAFAI)

Keywords

• Primary magnesium production
• Magnesium alloy manufacturing
• Lithium carbonate production
• Industrial chemical manufacturing
• Magnesium electrolysis

Headquarters

HQ city

Salt Lake City

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Infrastructure, Operations, Personnel, Supply Chain, Technology or R&D

Revenue model

1. Magnesium Metal Sales: Sales of pure magnesium (99.80% and 99.97% ultra-high purity) and alloy magnesium (AZ91D, AM50A, AM60B, AZ91E) in various ingot sizes and configurations. Primary revenue stream from core magnesium production operations.
2. Chemical Products: Production and sale of calcium chloride, liquid chlorine, ferric chloride, hydrochloric acid, magnesium chloride, and sodium chloride. These are co-products from the integrated chemical and metallurgical complex.
3. Lithium Carbonate: US Magnesium is an integrated producer of lithium carbonate, a key raw material used in lithium ion batteries, glass, ceramics, aluminum alloys, casting fluxes and other lithium compounds.
4. Technical Support and Recycling Services: Full range of technical support and recycling services including on-site training sessions, education seminars, process audits, material property data, calibration standards, laboratory analysis and design support.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

US Magnesium is an integrated producer of primary magnesium metal, magnesium alloys, lithium carbonate, and industrial chemical derivatives (calcium chloride, liquid chlorine, ferric chloride, hydrochloric acid, magnesium chloride, sodium chloride). The company harvests magnesium chloride brine from the Great Salt Lake, concentrates it through 100 square miles of solar evaporation ponds, and converts it via magnesium electrolysis into finished metal and chemical products for industrial customers.

Product overview

US Magnesium is an integrated primary magnesium and chemical production company operating on the Great Salt Lake in Utah. The company operates a 63,500 metric ton per year primary magnesium production facility alongside 9,000 metric tons per year lithium carbonate capacity. Its product portfolio consists of four core offerings: Pure Magnesium (99.80% and 99.97% ultra-high purity grades in various ingot sizes from 25 lb to 1,000 lb), Alloy Magnesium (AZ91D, AM50A, AM60B, AZ91E high-purity corrosion-resistant alloys for die casting), Lithium Carbonate (integrated production from brine for batteries and industrial applications), and Chemical Products (calcium chloride, chlorine, ferric chloride, hydrochloric acid, magnesium chloride, and sodium chloride). The company also provides technical support and recycling services to customers.

Differentiator

Problem solved

Functional benefit

Brands

• Maglock®: 25 lb. (12 kg) ingots for situations where small ingots are preferred.
• Magnesium Alloys (AZ91D, AM50A, AM60B, AZ91E)

Products and services

• Pure Magnesium Primary magnesium metal available in 99.80% and 99.97% ultra-high purity grades, produced in various ingot configurations including Maglock 25 lb ingots, grinding slab ingots, and direct chill cast T-bar ingots up to 1,000 lb, sold to industrial B2B customers.
• Alloy Magnesium High-purity, corrosion-resistant magnesium alloys AZ91D, AM50A, AM60B, and AZ91E used for die casting and gravity casting in automotive, power tool, telecommunication, and computer component industries, sold to B2B industrial customers.
• Lithium Carbonate Integrated lithium carbonate production from Great Salt Lake brine, sold as a key raw material for lithium ion batteries, glass, ceramics, aluminum alloys, casting fluxes, and other lithium compounds.
• Chemical Products Industrial chemicals produced from the integrated facility, including calcium chloride (concrete additive), liquid chlorine (water treatment), ferric chloride (drinking and wastewater treatment), hydrochloric acid (steel pickling and oil well acidizing), magnesium chloride (dust control and de-icing), and sodium chloride (harvested from holding ponds), sold to B2B industrial customers.

Quantifiable outcome

• 90% reduction in Utah's natural gas consumption through solar energy utilization
• +3 more outcomes

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• IBATF (International Battery And Technology Framework)coreTechnology or Integration · 18 June 2026IBATF has an active agreement with US Magnesium to deploy its first modular Direct Lithium Extraction (DLE) plant at US Mag's operations in Utah. The plant is currently undergoing initial equipment testing. IBATF reports 98% lithium recovery rates and 99%+ contaminant rejection across brine samples, with this deployment representing a key commercial opportunity for the technology provider.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Market position

Strengths4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about US Magnesium