Cups, polystyrene foam, manufacturing · Michigan

Dart Container Mason Cup Mfg.

Mason, MI · ~175 workers · 9 years of OSHA Injury Tracking Application data.

A
Excellent Safety Record
1.0
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Dart Container Mason Cup Mfg. runs at 30% of its industry's injury rate - far safer than the typical Cups, polystyrene foam, manufacturing workplace, earning a grade A.

Dart Container Mason Cup Mfg.: 1.0 TCR = 30% of Cups, polystyrene foam, manufacturing BLS 3.3 · 9y Form 300A (see methodology below)

Dart Container Mason Cup Mfg. safety composite

Dart Container Mason Cup Mfg. scores strongest on total case rate (tcr) (safer than 90% of same-industry peers) and weakest on fatalities (safer than 51%), 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).

B

77/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
A 0.99 per 100 workers

Safer than 90% of industry peers

DART rate
B 0 per 100 workers

Safer than 82% of industry peers

Fatalities
D 0

Safer than 51% 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%).

TCR Δ

−0.8

2016→2024

Dart Container Mason Cup Mfg. injury rate improved

Dart Container Mason Cup Mfg.'s TCR fell 0.8 from 0.8 in 2016 to 0.0 in 2024. Peak filing year was 2019 at 3.0 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2016=0.8 · 2017=1.2 · 2018=1.8 · 2019=3.0 · 2020=0.7 · 2021=1.5 · 2022=0.0 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 326140 · Mason, MI AT/BELOW-IND · MID

Grade A · TCR 1.0 · 30% of ind

  • DART 0.0 DART
  • RANK #2/14
  • PHOTO Houston Foam Plastic…
  • BOOK 9y book
  • INJ 18 inj
  • SIZE ~175 FTE

Nearest TCR peer: Houston Foam Plastics 4 (0.0 TCR gap)

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

Dart Container Mason Cup Mfg. in the TCR neighbourhood

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

TCR

What this shows Dart Container Mason Cup Mfg. averages 1.0 TCR (30% of the Cups, polystyrene foam, manufacturing BLS benchmark).

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

Dart Container Mason Cup Mfg. TCR series: 2016=0.8 · 2017=1.2 · 2018=1.8 · 2019=3 · 2020=0.7 · 2021=1.5 · 2022=0 · 2023=0 · 2024=0 · BLS 3.3

Where Dart Container Mason Cup Mfg. falls in its industry

260 Cups, polystyrene foam, manufa establishments

Safer than 90% of graded establishments in this industry, whose median TCR is 3.1.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #2 safest of 14 Cups, polystyrene foam, manufa employers in Michigan.

Dart Container Mason Cup Mfg. (175 employees, TCR 1.0) among 29 same-industry peers, split at the industry median of 66 employees and a TCR of 3.1 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 0100200300400500 0510152025 Average employees Total Case Rate Dart Container Mason Cup Mfg.
Dart Container Mason Cup Mfg. (175 employees, TCR 1.0) among 29 same-industry peers, split at the industry median of 66 employees and a TCR of 3.1

Dart Container Mason Cup Mfg. has more employees than the Cups, polystyrene foam, manufacturing median and a lower injury rate than the industry's median TCR of 3.1. 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
2024 0.0 0.0 0 0 0
2023 0.0 0.0 0 0 0
2022 0.0 0.0 0 0 0
2021 1.5 1.5 2 0 0
2020 0.7 0.7 1 0 0
2019 3.0 1.0 6 0 0
2018 1.8 0.4 4 0 0
2017 1.2 1.2 3 0 0
2016 0.8 0.4 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

326140 · MI · Mason

260 Cups, polystyrene foam, manufacturing employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 35 employers in Mason, 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 Houston Foam Plastics 4 1.0 TCR
NAICS-TCR Huntington Solutions 1.0 TCR
NAICS-TCR New Albany Foam Fabricators, Inc. 1.0 TCR
NAICS-TCR Alleguard - Lancaster 1.0 TCR
STATE-SIZE Kenwal Steel Corp 175 FTE
STATE-SIZE Xtreme Powerline Construction Inc 175 FTE
STATE-SIZE UFP Grand Rapids 175 FTE
STATE-SIZE Plant 3 175 FTE
CITY-NEAR Ingham County 1,451 FTE
CITY-NEAR Dart Container Corporate Offices 1,021 FTE
CITY-NEAR Gestamp Mason 525 FTE
CITY-NEAR Dart Container Engineering 411 FTE
NAT-TCR West DOC 1.0 TCR
NAT-TCR Nestle Purina Petcare 1.0 TCR
NAT-TCR Ryerson - Goldsboro 1.0 TCR
NAT-TCR Alcon Fort Worth 1.0 TCR
NAT-SIZE 1 Spectacle Street 175 FTE
NAT-SIZE Geminus Head Start 175 FTE
NAT-SIZE Masonicare Home Health & Hospice - Wallingford 175 FTE
NAT-SIZE American Farms LLC 175 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: 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.