Mining Incidents

Industrial Minerals Group LLC: 1 recorded fatality controller

MSHA controller ID: 0145041

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Email me when a new MSHA incident is filed at any mine Industrial Minerals Group LLC controls.

Fatalities
1
Total incidents
102
Mines on record
11
Years on record
2019–2023
Public-issuer link

ARCH RESOURCES, INC. (ARCH) discloses mines under this controller in its SEC Dodd-Frank Section 1503 (EX-95) mine-safety filings.

Compliance record
MSHA citations since 2019
1,505
citations
293
significant & substantial
$631,856
proposed penalties
$361,875
paid to date
57% of proposed penalties paid to date, a $269,981 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2019
647
inspections on record
37,080
inspection hours
4.1
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
1,505 citations across 37,080 inspection hours.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
3
Section 107(a) orders
Most recent order: 2023-04-03.
On record since 2021.
Source: MSHA imminent-danger order records, updated weekly.
Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$632K
proposed penalties
$460K
current assessed
$362K
paid to date
$98K
outstanding
1,439 assessments are final orders; 4 contested dockets.
Of $275K in penalties contested before the Commission, $103K was upheld in final decisions.
As of the most recent assessment on 2025-11-26.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.
20.3%
significant & substantial
3.5%
high negligence or reckless
20.4%
reasonably likely or greater
14.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.3% none, 17.3% low, 79.0% moderate, 3.5% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Injury rate, 2023
This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
7.63
total case rate
5.45
days-away rate
0.000
fatality rate
Above average. The US coal mining average was 3.17 and the all-US-mining average was 2.10 cases per 100 workers.
Year total case rate days-away fatal
2023 7.63 5.45 0.000
2022 5.35 2.82 0.282
2021 8.04 4.02 0.000
2020 6.45 5.86 0.000
2019 3.68 1.84 0.000
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Health sampling
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.

Respirable coal dust
Respirable coal dust and silica figures cover coal facilities. Dust compliance is measured against the current 1.5 mg/m3 standard; samples predating the 2014 standard are included, so compliance rates are a coarse historical signal.

Last sampled: 2026-06-24
100%
within 1.5 mg/m3
3,398
samples
6.23
dust max (mg/m3)
10
over MSHA ECV
The excessive concentration value (ECV) is MSHA's own per-sample enforcement threshold, which builds in measurement uncertainty; a sample over its ECV can trigger a citation. The count covers only samples MSHA assigned an ECV.
607 samples taken by MSHA inspectors, 2,791 by the operator.
Most-sampled occupations
  • CONTINUOUS MINER OPERATOR1,117
  • ROOF BOLTER (TWIN HEAD) (RETURN SIDE)792
  • SHUTTLE CAR OPERATOR (STANDARD SIDE)580

Silica (quartz)

Last sampled: 2023-10-31
5.7
silica avg (%)
194
samples
31.5
silica max (%)
Most-sampled occupations
  • CONTINUOUS MINER OPERATOR60
  • ROOF BOLTER (TWIN HEAD) (RETURN SIDE)36
  • SHUTTLE CAR OPERATOR (STANDARD SIDE)20

Noise
The share counts noise samples whose measured dose exceeded the 90 dBA permissible exposure limit. It describes the sampled workplace, not what reached the miner's ear: hearing conservation programs and the hearing protection worn during the shift are recorded separately and are not reflected here.

Last sampled: 2026-06-23
4%
over PEL
455
samples
Most-sampled occupations
  • SHUTTLE CAR OPERATOR (STANDARD SIDE)130
  • CONTINUOUS MINER OPERATOR45
  • SCOOP CAR OPERATOR40
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
7 citations taken to the federal commission · 0% of citations on record
  • Settled 7 · 100%
100%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 7 decided S&S contests · industry: 79%
62%
Penalty reduction in decided contests
$275K proposed, $103K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2023-06-29. Vacated and withdrawn citations are removed from the file this view attributes through, so that outcome is slightly undercounted here.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this controller contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
KENT 2023-0062 Settlement Young 2023 $171K → $86K
KENT 2023-0107 Settlement Bulluck 2024 $101K → $14K
VA 2022-0015 Settlement Paez 2023 $3K → $3K
VA 2022-0014 Settlement Paez 2023 $791 → $791
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

Top causes

Incident timeline

2023
18
2022
25 (1f)
2021
27
2020
20
2019
12

Operators under this controller

Mines on record

Fatalities under this controller

1 recorded
March 20, 2022 KY · Coal roof bolter, rock bolter, pinner, mobile roof support operator (mrs) Fatality · FALL OF ROOF OR BACK
INMET Mining, LLC. · Struck by falling object

The employee and co-workers were in the No.8 entry at x-cut No.47 on the 3 South Mains preparing to remove a permanent stopping. The injured employee was in the process of walking outby to turn off a water valve, when the roof collapsed resulting in a fatality. MSHA was notified. The injured employee was pronounced dead by the coroner on at 10:48pm on 3/21/2022.

For insurers, brokers, and safety consultants

Where Industrial Minerals Group LLC stands on silica, penalties, and injury rate

MSHA's standard limits respirable silica to 50 micrograms per cubic metre, but MSHA publishes dust and quartz as separate files and never the silica figure itself. We derive it per sample, score it against the limit, and set the operator's injury rate against a benchmark built from the full MSHA operator record. With the 26-year penalty trail, contest posture, and fatality history. Delivered as a PDF with the underlying data as CSV.

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