Active
Small Business
Overview
- Legal name
- MP MINE OPERATIONS LLC
- Registered location
- MOUNTAIN PASS, CA, USA
- Website
- Company website ↗
- Primary NAICS
- 331410 — Nonferrous Metal (except Aluminum) Smelting and Refining
- Latest award activity
- Mar 3, 2026
Read company summary
MP MINE OPERATIONS LLC is associated with UEI LMH9HU12L187 and CAGE 88VQ2 in public federal records. AcornBids currently links 2 prime awards totaling $13.3M in obligations to this entity. Its largest recorded federal customer by obligations is Department of Defense. Its recorded federal awards include work classified as Other Basic Inorganic Chemical Manufacturing. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 331410 (Nonferrous Metal (except Aluminum) Smelting and Refining). Its public SAM.gov registration lists MOUNTAIN PASS, CA, USA.
At a glance
Lifetime prime obligations$13.3M
Prime awards2
Awards with future end dates1
Top-agency concentration100.0%
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Sep 28, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- MP MINE OPERATIONS LLC
- UEI
- LMH9HU12L187
- CAGE
- 88VQ2
- Registered address
- 67750 BAILEY RD, MOUNTAIN PASS, CA, 92366, USA
- Registration status
- Active
- Primary NAICS
- 331410 — Nonferrous Metal (except Aluminum) Smelting and Refining
- SAM activation
- Feb 9, 2026
- Initial registration
- Feb 11, 2019
- Entity start
- Mar 6, 2017
- SAM updated
- Feb 9, 2026
- Registration expires
- Feb 5, 2027
- Fiscal year end
- Dec 31
- Place of incorporation
- DE, USA
Federal award analysis
Net transaction obligations by federal fiscal period.
Transaction history is not available in the loaded data. Annual funding is not estimated from current award totals.
Recent federal awards
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| SP800023C00108509870941!LANTHANUM STORAGE & ROTATION | Department of Defense | $2.4M | Aug 31, 2023 | Feb 28, 2029 |
| SP800024C0007NEODYMIUM OXIDE (ND2O3) AND PRASEODYMIUM OXIDE (PR6O11) | Department of Defense | $11.0M | Jul 31, 2024 | Nov 14, 2025 |
Upcoming positioning windows
Modeled recompete windows are estimates, not announced solicitations or guarantees.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Feb 9, 2026 |
| Source loaded | Sep 19, 2026 |
| Initial registration | Feb 11, 2019 |
| Entity start | Mar 6, 2017 |
Registration classifications: Small Business. These are separate from the reported certificates above.
| Industry | Reported size status |
|---|---|
| 212290 — Other Metal Ore Mining | Not reported |
| 325180 — Other Basic Inorganic Chemical Manufacturing | Not reported |
| 331410 — Nonferrous Metal (except Aluminum) Smelting and Refining | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| MICHAEL ROSENTHAL | Government business | Contact method not published | SAM registration | Not available |
| ELLIOT D HOOPS | Electronic business | Contact method not published | SAM registration | Not available |
Registered industries
- 212290 — Other Metal Ore Mining
- 325180 — Other Basic Inorganic Chemical Manufacturing
- 331410 — Nonferrous Metal (except Aluminum) Smelting and Refining
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
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Data coverage and methodology
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
No official subaward rows are loaded, so Acorn does not claim known teaming relationships.
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