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H-1B Sponsor Profile

MP Mine Operations LLC — H-1B Visa Sponsorship Data

30 certified Labor Condition Applications on file with the U.S. Department of Labor, FY2022–FY2026.

Las Vegas, NVActive FY2022–FY2026Transfer-FriendlyFull-Time Roles
● Data current through FY2026 · sourced from U.S. DOL OFLC, updated quarterly
I work at MP Mine Operations LLCSee what a DOL auditor would ask about your filingsConsidering a job here?Salaries, transfers and where roles are based
Sponsors H-1B?
Yes
30 certified LCAs
FY2026 filings
10
most recent disclosure year
Median H-1B salary
$125,101
typical $110,000–$137,433
Worksite states
3
3 cities
Transfer share
34%
change-of-employer filings
Audit readiness Check another employer

2 items a DOL auditor would ask MP Mine Operations LLC about

Since September 2025, DOL's Project Firewall opens H-1B investigations without waiting for a complaint. These checkpoints come from MP Mine Operations LLC's own public LCA filings (FY2024–FY2026) — the same records an investigator pulls first.

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2 certified LCAs (2 positions) end within 180 days

Next end date: 2026-12-15. Employing an H-1B worker past the LCA end date without a new certified LCA is a strict-liability violation — the replacement LCA must be certified before the I-129 extension is filed.

Auditor asksWhich workers are on each expiring LCA, and is a superseding LCA already certified?
In your PAFSuperseding LCA, updated PAF entry and new posting notice for every position that continues.
Watch
3 worksites across 3 states

Each worksite needs its own 10-business-day LCA notice and a PAF record of that posting; a move to a new area of intended employment needs a new LCA before the worker starts there.

Auditor asksWhere is the posting record for each worksite, and were short-term placements tracked against the 30/60-day limits?
In your PAFPosting notices (or electronic-notice records) per worksite; new-worksite LCAs; placement log.
Clear
6% of certified LCAs are at Wage Level I

Level I is the entry-level prevailing-wage tier and the band DOL's Project Firewall reviews first for misclassification (senior duties filed at an entry-level wage). The national share is 17%.

Auditor asksHow was Level I justified for each role — required education, experience and the actual duties performed?
In your PAFPrevailing-wage determination and wage-level worksheet for every Level I LCA.
Clear
9% of LCAs offer a wage within 2% of the prevailing wage

Median offered wage is 27% above the DOL prevailing wage across 22 recent certified LCAs. Paying at the floor is lawful, but it invites the question of whether the wage level itself is right.

Auditor asksShow the actual wage paid (payroll) matches or exceeds the LCA wage for every worker, including benched time.
In your PAFActual-wage memorandum and pay records per LCA; wage-level rationale where the offered wage equals the PW.
Are you MP Mine Operations LLC? Get the private PAF / LCA gap check.
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Public DOL disclosure data can lag actual filings by a quarter. Descriptive only — not legal advice.

For job seekers

Considering a job at MP Mine Operations LLC?

Does MP Mine Operations LLC sponsor H-1B visas?

Yes — MP Mine Operations LLC sponsors H-1B workers, with 30 certified LCAs on file (FY2022–FY2026), including 10 in FY2026. The median certified salary is $125,101 (P25 $110,000, P75 $137,433). With a 34% transfer share, this employer actively accepts H-1B transfers. 100% of its certified filings meet or exceed the prevailing wage.

What to Know Before Applying to MP Mine Operations LLC

Salary range
Median $125,101, typical band $110,000–$137,433.
Transfers
34% of filings are transfers — this employer has an established H-1B transfer track record.
Typical locations
Mountain Pass, CA, Westlake, TX, Las Vegas, NV, LAS VEGAS, NV.
Position type
100% of filings are full-time roles.
Common roles
Process Control Engineer, Robotics Engineer, Engineer Ii, Process.
Benchmark this employer in the H-1B database →
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Frequently asked questions

Yes. MP Mine Operations LLC has 30 certified Labor Condition Applications (LCAs) on file with the U.S. Department of Labor (FY2022–FY2026).

The median sponsored salary is $125,101, with a typical P25–P75 band of $110,000–$137,433 across certified LCAs.

Yes — 34% of its LCA filings are change-of-employer (transfer) cases, indicating an active transfer pipeline.

MP Mine Operations LLC filed 10 certified LCAs in FY2026, the most recent fiscal year of U.S. DOL disclosure data.

Top worksites include Mountain Pass, CA, Westlake, TX, Las Vegas, NV, LAS VEGAS, NV.
Sponsorship data

MP Mine Operations LLC H-1B data at a glance

Executive Summary

MP Mine Operations LLC H-1B sponsorship at a glance, from public U.S. DOL LCA disclosure data (FY2022–FY2026).

  • Median certified salary is $125,101, typically $110,000–$137,433 (P25–P75).
  • 100% of certified filings are at or above the DOL prevailing wage.
  • Change-of-employer (transfer) share is 34% — workers actively transfer to this employer.
  • Worksite footprint spans 3 states and 3 cities.
  • Most-sponsored roles: Process Control Engineer, Robotics Engineer, Engineer Ii, Process.
  • Filed 10 certified LCAs in FY2026, the most recent disclosure year.

Certified LCAs are a prerequisite to H-1B petitions, not visa approvals; one LCA can cover multiple workers. Descriptive only — not legal advice.

Salary Distribution

$64,522
$240,000
P25$110,000
Median$125,101
P75$137,433

The shaded band is the middle half of certified salaries (P25–P75); the bar spans the lowest to highest certified salary.

100% of certified filings at or above the DOL prevailing wage.

Wage Level Distribution

Level I
6%
Level II
19%
Level III
66%
Level IV
9%

Levels I–IV are DOL prevailing-wage experience tiers; 75% of filings are senior-level (III–IV).

Filing history

LCA filings by fiscal year

Certified LCAs per year

FY2022
3
FY2023
5
FY2024
3
FY2025
9
FY2026
10
Fiscal yearCertifiedDeniedWithdrawnTotal
FY20223003
FY20235005
FY20243025
FY20259009
FY2026100010

Case dispositions from the U.S. DOL OFLC disclosure files. Withdrawn are LCAs that were certified and later withdrawn by the employer; they still count toward Total.

See a single year in detail:
FY2022 ›FY2023 ›FY2024 ›FY2025 ›FY2026 ›

All LCA filings

29 filings
Job titleSalaryLevelLocationFiledStatus
Process Engineer II
I-200-26132-901893
$125,000/yrIIMountain Pass, CAMay 12, 2026Certified
Senior Buyer
I-200-26128-888780
$92,789/yrIMountain Pass, CAMay 08, 2026Certified
Warehouse Operations Systems Analyst
I-200-26125-870808
$120,000/yrIIIMountain Pass, CAMay 05, 2026Certified
Senior Engineer, Process
I-200-26120-854380
$151,496/yrIVMountain Pass, CAApr 30, 2026Certified
Electrical Engineer
I-200-26120-853670
$154,500/yrIVMountain Pass, CAApr 30, 2026Certified
Engineer II, Process
I-200-26098-767900
$125,000/yrIIMountain Pass, CAApr 07, 2026Certified
Engineer II, Process
I-200-26087-737754
$125,000/yrIIIMountain Pass, CAMar 27, 2026Certified
Operations Manager
I-203-26056-664044
$240,000/yrIIMountain Pass, CAFeb 25, 2026Certified
Lead Engineer, Metallurgy
I-200-25274-350765
$165,000/yrIVMountain Pass, CASep 30, 2025Certified
Senior Buyer
I-200-25274-350774
$90,000/yrIIMountain Pass, CASep 30, 2025Certified
Manager, Corporate Financial Planning & Analysis
I-200-25149-032421
$149,350/yrIIILas Vegas, NVMay 29, 2025Certified
Process Control Engineer
I-200-25129-959773
$135,000/yrIIIMountain Pass, CAMay 09, 2025Certified
Process Control Engineer
I-200-25127-950959
$136,578/yrIIIMountain Pass, CAMay 07, 2025Certified
Engineer, Process Control
I-200-25127-950955
$135,000/yrIIIMountain Pass, CAMay 07, 2025Certified
Process Control Engineer
I-200-25122-931132
$135,000/yrIIIMountain Pass, CAMay 02, 2025Certified
Process Control Engineer
I-200-25122-931273
$125,000/yrIIIMountain Pass, CAMay 02, 2025Certified
Senior Instrumentation Engineer
I-200-25122-931020
$159,650/yrIIIMountain Pass, CAMay 02, 2025Certified
Process Control Engineer
I-200-25122-930937
$135,000/yrIIIMountain Pass, CAMay 02, 2025Certified
Senior Process Engineer
I-200-25120-919316
$132,000/yrIIIMountain Pass, CAApr 29, 2025Certified
Senior Process Development Engineer
I-200-24205-217343
$153,000/yrIIIMountain Pass, CAJul 23, 2024Certified
Senior Process Control Engineer
I-200-24138-008222
$140,000/yrIIIMountain Pass, CAMay 17, 2024Certified
Process Control Engineer
I-200-24040-707361
$115,000/yrIIMountain Pass, CAFeb 09, 2024Certified
Material Manager
I-200-23354-581595
$64,522/yrIMountain Pass, CADec 20, 2023Certified, withdrawn
Senior Project Metallurgist
I-200-23243-312419
$125,202/yrIIIMountain Pass, CAAug 31, 2023Certified
Robotics Engineer
I-200-22284-523657
$110,000/yrIIIWestlake, TXOct 11, 2022Certified

One row per LCA case (its latest version), from U.S. DOL OFLC disclosure data. Salaries are the offered wage, converted to a yearly figure. Certified LCAs are not visa approvals.

Every certified LCA needs its own Public Access File. Get the private gap check →
Sponsorship insights

How MP Mine Operations LLC sponsors H-1B talent

Petition Mix

New employment  50%Transfer (change of employer)  34%Continued employment  9%Amendments & other  6%
High transfer share (34%) — H-1B workers actively change employers to join MP Mine Operations LLC.

Worker positions by LCA filing purpose, summed across FY2022–FY2026 disclosure records.

Filing Activity by Month

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Most active filing months: May and Apr — useful for timing transfer conversations.

Compliance Posture

Willful Violator
No
Full-Time Positions
100%
At/Above Prevailing Wage
100%

Attestations from the employer's own LCA filings (Form ETA-9035), as disclosed by the U.S. DOL.

Roles & geography

Top sponsored roles & worksites

Top job titles

Process Control Engineer
6 · $130,263
Robotics Engineer
4 · $110,000
Engineer Ii, Process
2 · $125,000
Senior Buyer
2 · $91,395
Senior Project Metallurgist
2 · $125,202

Top worksite locations

3 states · 3 cities

Mountain Pass, CA
25
Westlake, TX
4
Las Vegas, NV
1
LAS VEGAS, NV
1
MOUNTAIN PASS, CA
1
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MP Mine Operations LLC · audit readiness
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