Polyester resins manufacturing · California

Interplastic Corporation

Hawthorne, CA · ~40 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
14.5
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Interplastic Corporation runs at 439% of its industry's injury rate - far more dangerous than the typical Polyester resins manufacturing workplace, earning a grade F.

Interplastic Corporation: 14.5 TCR = 439% of Polyester resins manufacturing BLS 3.3 · 2y Form 300A (see methodology below)

Interplastic Corporation safety composite

Interplastic Corporation scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 1%), 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

14/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 14.5 per 100 workers

Safer than 1% of industry peers

DART rate
F 18.05 per 100 workers

Safer than 1% 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%).

Rising injury rate

Interplastic Corporation: 1.9 → 27.1 TCR

Peak year 2023 @ 27.1 TCR · DART/TCR 1.24× in 2023

Interplastic Corporation's TCR rose 25.1 from 1.9 in 2020 to 27.1 in 2023. In 2023, DART was 1.24× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 325211 · Hawthorne, CA ABOVE-IND · SMALL

Grade F · TCR 14.5 · 439% of ind

  • DART 18.1 DART
  • RANK #30/30
  • PHOTO Thombert
  • BOOK 2y book
  • INJ 4 inj
  • SIZE ~40 FTE

Nearest TCR peer: Thombert (0.0 TCR gap)

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

Interplastic Corporation in the TCR neighbourhood

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

TCR

What this shows Interplastic Corporation averages 14.5 TCR (439% of the Polyester resins manufacturing BLS benchmark).

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

Interplastic Corporation TCR series: 2020=1.9 · 2023=27.1 · BLS 3.3

Where Interplastic Corporation falls in its industry

644 Polyester resins manufacturing establishments

Safer than 1% of graded establishments in this industry, whose median TCR is 2.0.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #30 safest of 30 Polyester resins manufacturing employers in California.

Interplastic Corporation (40 employees, TCR 14.5) among 29 same-industry peers, split at the industry median of 72 employees and a TCR of 2.0 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 05001,0001,500 05101520 Average employees Total Case Rate Interplastic Corporation
Interplastic Corporation (40 employees, TCR 14.5) among 29 same-industry peers, split at the industry median of 72 employees and a TCR of 2.0

Interplastic Corporation has fewer employees than the Polyester resins manufacturing 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 Fatalities
2023 27.1 18.1 3 0 0
2020 1.9 0.0 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

325211 · CA · Hawthorne

644 Polyester resins manufacturing employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 78 employers in Hawthorne, CA · 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 Thombert 14.5 TCR
NAICS-TCR Nylon Corporation of America 14.6 TCR
NAICS-TCR MEDAL Components 15.1 TCR
NAICS-TCR Thombert Inc. 13.5 TCR
STATE-SIZE Stackhouse Brothers 40 FTE
STATE-SIZE PISTACHIO HARVESTING, INC. 40 FTE
STATE-SIZE Watsonville/San Juan Bautista 40 FTE
STATE-SIZE Gomez Growers 40 FTE
CITY-NEAR Hawthorne, CA 7,104 FTE
CITY-NEAR South Bay Workforce Investment Board, Inc. 4,618 FTE
CITY-NEAR California Department of Transportation Facility 206 2,621 FTE
CITY-NEAR AMZL : DLA8 2,331 FTE
NAT-TCR Oakley St Louis, LLC 14.5 TCR
NAT-TCR Van's Heating & Air Conditioning, Inc 14.5 TCR
NAT-TCR 168 North Dale Mabry (Tampa) 14.5 TCR
NAT-TCR Good Food Inc. 14.5 TCR
NAT-SIZE LSFS Lawrenceburg, TN 40 FTE
NAT-SIZE Phillips Elementary School 40 FTE
NAT-SIZE Amarillo NE Service Center-112 40 FTE
NAT-SIZE Rocky Mountain Energy Center-250 40 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: 2023, 2020. 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.