Lithium batteries, primary, manufacturing · Michigan

Brownstown Assembly

Name: Brownstown Assembly Workplace Safety Data
Creator: PlainSafetyScore
License: https://creativecommons.org/publicdomain/zero/1.0/

Brownstown, MI · ~89 workers · 5 years of OSHA Injury Tracking Application data.

Compiled by PlainSafetyScore · August 25, 2026

D
Poor Safety Record: 4.2
Avg TCR: 3.3
Industry avg: 0
Fatalities

Subscribe to safety-record updates (RSS)

The verdict

Brownstown Assembly runs at 127% of its industry's injury rate - more dangerous than the typical Lithium batteries, primary, manufacturing workplace, earning a grade D.

Brownstown Assembly: 4.2 TCR = 127% of Lithium batteries, primary, manufacturing BLS 3.3 · 5y Form 300A (see methodology below)

Brownstown Assembly safety composite

Brownstown Assembly scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on total case rate (tcr) (safer than 7%), 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).

22/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR): F 4.19 per 100 workers

Safer than 7% of industry peers
DART rate: F 2.73 per 100 workers

Safer than 18% 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

Brownstown Assembly: 2.4 → 5.5 TCR

Peak year 2017 @ 8.7 TCR · DART/TCR 0.65× in 2020

Brownstown Assembly's TCR rose 3.0 from 2.4 in 2016 to 5.5 in 2020. Peak filing year was 2017 at 8.7 TCR. In 2020, DART was 0.65× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 335912 · Brownstown, MI ABOVE-IND · SMALL

Grade D · TCR 4.2 · 127% of ind

DART 2.7 DART
RANK P7
PHOTO Rayovac - Fennimore
BOOK 5y book
INJ 13 inj
SIZE ~89 FTE

Nearest TCR peer: Rayovac - Fennimore (0.1 TCR gap)

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

This site

4.2
Rayovac - Fenn

4.1
Flux Power

3.9
Ultium Cells,

3.7
Materials Divi

3.5

What this shows Brownstown Assembly averages 4.2 TCR (127% of the Lithium batteries, primary, manufacturing BLS benchmark).

Brownstown Assembly TCR series: 2016=2.4 · 2017=8.7 · 2018=0 · 2019=4.4 · 2020=5.5 · BLS 3.3

Where Brownstown Assembly falls in its industry

42 Lithium batteries, primary, ma establishments

Safer than 7% of graded establishments in this industry, whose median TCR is 2.0.

Grade D

More dangerous than peersSafer than peers

Brownstown Assembly (89 employees, TCR 4.2) among 29 same-industry peers, split at the industry median of 181 employees and a TCR of 2.0

Brownstown Assembly has fewer employees than the Lithium batteries, primary, manufacturin median and a higher injury rate than the industry's median TCR of 2.0. 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
2020	5.5	2.7	1	1
2019	4.4	4.4	2	0
2018	0.0	0.0	0	0
2017	8.7	7.0	7	3
2016	2.4	2.4	3	0

OSHA ITA peer cross-reference

Establishment peer ledger

335912 · MI · Brownstown

42 Lithium batteries, primary, manufacturing employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 43 employers in Brownstown, MI · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel	Establishment	Place	Metric
NAICS-TCR	Rayovac - Fennimore	FENNIMORE, WI	4.1 TCR
NAICS-TCR	Flux Power	VISTA, CA	3.9 TCR
NAICS-TCR	Ultium Cells, Lordstown	WARREN, OH	3.7 TCR
NAICS-TCR	Materials Division	COLUMBUS, GA	3.5 TCR
STATE-SIZE	West Branch SC	WEST BRANCH	89 FTE
STATE-SIZE	City of Kalamazoo-Public Services-Harrison	KALAMAZOO	89 FTE
STATE-SIZE	Balkema Excavating, Inc	KALAMAZOO	89 FTE
STATE-SIZE	28_22	HOLLAND	89 FTE
CITY-NEAR	Amazon Transportation Services : DTW5	Brownstown	2,082 FTE
CITY-NEAR	Amazon.com Services LLC - DTW5	Brownstown	1,512 FTE
CITY-NEAR	Republic National Distributing Company 19	Brownstown	450 FTE
CITY-NEAR	RNDC Brownstown	Brownstown	411 FTE
NAT-TCR	Forrest City Medical Center	Forrest City, AR	4.2 TCR
NAT-TCR	Carolina International Trucks	Columbia, SC	4.2 TCR
NAT-TCR	Big Prairie	Big Prairie, OH	4.2 TCR
NAT-TCR	Ross store 1696	Overland Park, KS	4.2 TCR
NAT-SIZE	Amarillo Tx Car Shop	Amarillo, TX	89 FTE
NAT-SIZE	Boyer's Food Markets -Womelsdorf	Womelsdorf, PA	89 FTE
NAT-SIZE	Stonebridge at Burlington	Burlington, MA	89 FTE
NAT-SIZE	Brookshire House	Denver, CO	89 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: 2020, 2019, 2018, 2017, 2016. 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.