Facility detail

MASTER COMPOSITES INC

211 IND US TRIAL ST, HENNING, MN, 56551

Parent company: NA

Carcinogen — EPA classifications across all reporting years

Year-over-year total releases

Reported on-site TRI releases in pounds (lbs), grouped by reporting year.

Top chemical totals

The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.

Full release table

Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.

All values in pounds (lbs)
Year Styrene Total (lbs)
2024 1,887 1,887
2023 2,992 2,992
2022 8,000 8,000
2021 1,577 1,577
2020 4,622 4,622
2019 3,395 3,395
2018 6,395 6,395
2017 5,274 5,274
2016 5,534 5,534
2015 7,974 7,974
2014 4,449 4,449

▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.