Engine block assemblies, automotive and truck gasoline, manufacturing · Michigan

C. Thorrez Industries

Jackson, MI · ~125 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
8.4
Avg TCR
5.4
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

C. Thorrez Industries runs at 156% of its industry's injury rate - more dangerous than the typical Engine block assemblies, automotive and truck gasoline, manufacturing workplace, earning a grade D.

C. Thorrez Industries: 8.4 TCR = 156% of Engine block assemblies, automotive and truck gasoline, manufacturing BLS 5.4 · 2y Form 300A (see methodology below)

C. Thorrez Industries safety composite

C. Thorrez Industries scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on total case rate (tcr) (safer than 9%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

F

26/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 8.43 per 100 workers

Safer than 9% of industry peers

DART rate
F 2.71 per 100 workers

Safer than 27% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

Rising injury rate

C. Thorrez Industries: 6.7 → 10.2 TCR

Peak year 2018 @ 10.2 TCR · DART/TCR 0.32× in 2018

C. Thorrez Industries's TCR rose 3.5 from 6.7 in 2017 to 10.2 in 2018. In 2018, DART was 0.32× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 336310 · Jackson, MI ABOVE-IND · MID

Grade D · TCR 8.4 · 156% of ind

  • DART 2.7 DART
  • RANK #51/55
  • PHOTO Tonawanda Engine Plant
  • BOOK 2y book
  • INJ 18 inj
  • SIZE ~125 FTE

Nearest TCR peer: Tonawanda Engine Plant (0.1 TCR gap)

Read with this employer → · Industry book → · Michigan employers → · Look up another →

C. Thorrez Industries in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows C. Thorrez Industries averages 8.4 TCR (156% of the Engine block assemblies, automotive and truck gasoline, manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

C. Thorrez Industries TCR series: 2017=6.7 · 2018=10.2 · BLS 5.4

Where C. Thorrez Industries falls in its industry

221 Engine block assemblies, autom establishments

Safer than 9% of graded establishments in this industry, whose median TCR is 2.9.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #51 safest of 55 Engine block assemblies, autom employers in Michigan.

C. Thorrez Industries (125 employees, TCR 8.4) among 29 same-industry peers, split at the industry median of 165 employees and a TCR of 2.9 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 02004006008001,000 05101520 Average employees Total Case Rate C. Thorrez Industries
C. Thorrez Industries (125 employees, TCR 8.4) among 29 same-industry peers, split at the industry median of 165 employees and a TCR of 2.9

C. Thorrez Industries has fewer employees than the Engine block assemblies, automotive and median and a higher injury rate than the industry's median TCR of 2.9. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2018 10.2 2.7 11 4 0
2017 6.7 3.7 7 2 0

OSHA ITA peer cross-reference

Establishment peer ledger

336310 · MI · Jackson

221 Engine block assemblies, automotive and truck gasoline, manufacturing employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 207 employers in Jackson, MI · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Tonawanda Engine Plant 8.5 TCR
NAICS-TCR WS - Flowmaster 8.3 TCR
NAICS-TCR TF METAL USA LLC (Formally Known As Fuji Autotech USA) 8.6 TCR
NAICS-TCR Zenith Power Products 8.2 TCR
STATE-SIZE 2552-Constantine, MI (Monsanto Co.) 125 FTE
STATE-SIZE Dan E Karn 1&2 125 FTE
STATE-SIZE PHRG DET 125 FTE
STATE-SIZE DeMaria 125 FTE
CITY-NEAR Allegiance Health 4,779 FTE
CITY-NEAR Main Hospital Campus 3,076 FTE
CITY-NEAR Henry Ford Jackson 2,045 FTE
CITY-NEAR Henry Ford- Jackson Downtown Campus 1,201 FTE
NAT-TCR United Mail Sorting, Inc. 8.4 TCR
NAT-TCR Omaha Hub (Neoma) 8.4 TCR
NAT-TCR Niantic (Ctnia) 8.4 TCR
NAT-TCR San Luis Obispo (Caslo) 8.4 TCR
NAT-SIZE Roadrunner Drywall Nevada 125 FTE
NAT-SIZE NRG Site 1 125 FTE
NAT-SIZE 43621b - Milwaukee Dc 125 FTE
NAT-SIZE Full Sail Brewing 125 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.