Employer · plans filed under one EIN
US Magnesium LLC
Salt Lake City, UT · Manufacturing
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances.
US Magnesium LLC, based in Salt Lake City, Utah, sponsors 3 retirement plans with 100 or more participants: 2 defined contribution and 1 defined benefit. Together they reported 742 participant records and $65.6M in net assets.
The largest is US Magnesium LLC Hourly Defined Benefit Pension Plan, a defined benefit pension plan with 420 participants. A person can be counted in more than one plan, so the participant total is a count of records rather than of people.
Employer contributions across the plans were $1.1M and participant contributions $1.4M in the latest plan years; benefits paid were $19.0M. Schedule C compensation reported to service provider organisations totalled $343K.
Combined net assets moved from $46.0M in 2009 to $65.6M in 2024 (up 43%). Plan mergers and spin-offs show up here as steps in the series.
Plans
| Plan | Kind | Plan year | Participants | Net assets | Per participant | Employer / active | Sch. C compensation |
|---|---|---|---|---|---|---|---|
| US Magnesium LLC Hourly Defined Benefit Pension Plan | defined benefit pension plan | 2024 | 420 | $24.5M | $58,301 | — | $203K |
| US Magnesium LLC Hourly 401(k) Plan | 401(k) plan | 2024 | 170 | $6.6M | $38,933 | $4,116 | $50K |
| US Magnesium LLC Salaried Pension and 401(k) Plan | 401(k) plan | 2024 | 152 | $34.5M | $226,832 | $35,769 | $90K |
| US median, plan year 2024: DC plans $53,102 per participant, $2,175 employer contribution per active participant; DB plans $86,221 and $10,244. | |||||||
Trend by plan year
| Plan year | Plans | Participant records | Net assets | Employer contributions | Participant contributions |
|---|---|---|---|---|---|
| 2024 | 3 | 742 | $65.6M | $1.1M | $1.4M |
| 2023 | 3 | 959 | $76.4M | $1.5M | $1.9M |
| 2022 | 3 | 1,252 | $80.5M | $1.6M | $2.2M |
| 2021 | 3 | 1,286 | $96.3M | $1.6M | $2.2M |
| 2020 | 3 | 1,326 | $92.3M | $2.6M | $2.3M |
| 2019 | 3 | 1,303 | $84.5M | $3.4M | $1.9M |
| 2018 | 3 | 1,264 | $74.8M | $2.9M | $1.9M |
| 2017 | 3 | 1,271 | $78.6M | $3.1M | $1.8M |
| 2016 | 3 | 1,323 | $74.7M | $4.5M | $1.9M |
| 2015 | 3 | 1,374 | $70.8M | $4.6M | $1.7M |
| 2014 | 3 | 1,435 | $71.6M | $3.9M | $1.6M |
| 2013 | 3 | 1,340 | $68.1M | $4.0M | $1.6M |
| 2012 | 3 | 1,319 | $59.2M | $3.3M | $1.7M |
| 2011 | 3 | 1,326 | $52.2M | $3.9M | $1.5M |
| 2010 | 3 | 1,222 | $50.6M | $2.4M | $1.5M |
| 2009 | 3 | 1,217 | $46.0M | $2.2M | $1.2M |
History of the plans listed above, in the years each filed the full Form 5500 with 100 or more participants. Plans that have since terminated are not included.
Service providers
| Organisation | Services reported | Plans | Compensation reported |
|---|---|---|---|
| Principal Life Insurance Company | Actuarial; Contract Administrator | 1 | $191,265 |
| Stancorp Financial Group | Claims processing; Recordkeeping and information management; Custodial (other than securities) | 2 | $97,751 |
| OneDigital Investment Advisors LLC | Investment advisory (plan) | 2 | $42,187 |
| JPMorgan Chase Bank NA | Investment management | 1 | $6,980 |
| Principal Trust Company | Trustee (bank, trust company, or similar financial institution) | 1 | $5,221 |
Organisations paid $5,000 or more by any of these plans, from Schedule C. Individuals are not shown.
Questions and answers
How many retirement plans does US Magnesium LLC have?
3 plans with 100 or more participants filed Form 5500 under its employer identification number for the latest plan years: US Magnesium LLC Hourly Defined Benefit Pension Plan, US Magnesium LLC Hourly 401(k) Plan and US Magnesium LLC Salaried Pension and 401(k) Plan. Smaller plans and plans filed under a subsidiary's number are not grouped here.
How much does US Magnesium LLC contribute to its plans?
$1,140,188 in employer contributions across these plans in their latest plan years, about $20,361 per active participant record. Form 5500 reports totals and not the match or accrual formula.
Who provides services to these plans?
Schedule C filings name Principal Life Insurance Company, Stancorp Financial Group, OneDigital Investment Advisors LLC and JPMorgan Chase Bank NA and others. Only organisations paid $5,000 or more by a plan are listed on Schedule C.
Where does this come from?
Form 5500 annual reports filed with the Department of Labor's EFAST2 system, from the EBSA research files, with filings received through 24 Aug 2026. Figures are as filed and may be amended.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files, public domain, with filings received through 24 Aug 2026. Plans are grouped by the sponsor's employer identification number exactly as filed; a company that files under several EINs appears as several employers. See the methodology and corrections.