Wolfspeed Inc
3 facilities · 2 states · 139.8K lbs total releases
According to the EPA Toxics Release Inventory, Wolfspeed Inc is the reported parent of 3 Form R facilities across 2 states, disclosing 139.8K lbs of toxic releases. 19 chemicals are reported; none carry a carcinogen classification in this extract. The heaviest-reporting state by release volume is North Carolina (136.9K lbs). Those TRI figures remain self-reported disclosure pounds across Wolfspeed Inc's multi-state Form R set, not a measured public-health risk score.
Release-over-release change
What changed for Wolfspeed Inc: EPA TRI 2023 reporting year
Same facilities, both years
+44.0%
3 facilities that filed in 2022 and 2023
Whole inventory
+44.0%
22.0 thousand lb → 31.7 thousand lb, every facility that filed
- Wolfspeed Inc's total reported releases rose from 22.0 thousand lb in 2022 to 31.7 thousand lb in 2023, based on EPA TRI filings.
- Wolfspeed Inc's off-site transfers rose from 9.3 thousand lb in 2022 to 17.0 thousand lb in 2023, based on EPA TRI filings.
- Wolfspeed Inc's air releases rose from 12.7 thousand lb in 2022 to 14.6 thousand lb in 2023, based on EPA TRI filings.
- Wolfspeed Inc's chemicals reported rose from 7 in 2022 to 8 in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Wolfspeed Inc from filing to facility
Largest Form R sites under this parent: Wolfspeed Inc.; Wolfspeed Inc. (rtp); Wolfspeed - Mohawk Valley Fab. Neighbor parents on the disclosure ladder: Befesa Zinc US Inc.; Duke Energy Corp. Largest disclosed chemicals by pounds: Manganese compounds; Hydrogen fluoride; N-Methyl-2-pyrrolidone; Ammonia; Manganese And Manganese Compounds. Heaviest-reporting states in this extract: North Carolina; New York. Industry labels on the parent rollup: Computers and Electronic Products. Start from those named sites and neighbors rather than a generic parent blurb; pounds stay disclosure, not risk.
Largest Form R sites under this parent: Wolfspeed Inc.; Wolfspeed Inc. (rtp); Wolfspeed - Mohawk Valley Fab. Neighbor parents on the disclosure ladder: Befesa Zinc US Inc.; Duke Energy Corp. Largest disclosed chemicals by pounds: Manganese compounds; Hydrogen fluoride; N-Methyl-2-pyrrolidone; Ammonia; Manganese And Manganese Compounds. Heaviest-reporting states in this extract: North Carolina; New York. Industry labels on the parent rollup: Computers and Electronic Products.
Wolfspeed Inc ranks #1,457 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. Wolfspeed Inc files across 2 states, a regional parent portfolio rather than a single-state discloser. Releases are facility-concentrated: Wolfspeed Inc. accounts for most of Wolfspeed Inc's disclosed pounds, so peer comparisons should weight that site, not an even portfolio average.
Parent aggregation for Wolfspeed Inc follows facility-reported names. Compare the named neighbors (Befesa Zinc US Inc.; Duke Energy Corp) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Wolfspeed Inc sits among TRI parents
Wolfspeed Inc sits on a disclosure ladder beside Befesa Zinc US Inc. and Duke Energy Corp. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Befesa Zinc US Inc. · rank #1,455 · 43.1M lbs
- Duke Energy Corp · rank #1,456 · 24.1M lbs
Largest chemicals disclosed by Wolfspeed Inc
Manganese compounds; Hydrogen fluoride; N-Methyl-2-pyrrolidone; Ammonia; Manganese And Manganese Compounds lead the Form R pound rollup for this parent, including filings such as Wolfspeed Inc.. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Manganese compounds | 47.1K lbs |
| Hydrogen fluoride | 29.4K lbs |
| N-Methyl-2-pyrrolidone | 23.1K lbs |
| Ammonia | 17.2K lbs |
| Manganese And Manganese Compounds | 13.8K lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| North Carolina | 2 | 136.9K lbs |
| New York | 1 | 3.0K lbs |
Facilities (3)
| Facility | Releases |
|---|---|
| Wolfspeed Inc. Durham, NC | 118.7K lbs |
| Wolfspeed Inc. (rtp) Research Triangle Park, NC | 18.2K lbs |
| Wolfspeed - Mohawk Valley Fab Marcy, NY | 3.0K lbs |
Frequently Asked Questions
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Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest Wolfspeed Inc on total disclosed release pounds (139.8K lbs) and reporting facility count (3). Release-volume peers include Qualico Steel Co Inc, Siemens Corp, Heico Holding Inc. Facility-count peers include A-Gas US Holdings Inc, Abb Holdings Inc, Adams Resources & Energy Inc. Neighborhoods are forced disjoint so each axis surfaces a different set of parents.
Similar disclosed release pounds
Nearest parents (≥3 facilities, ≥10k lbs) by absolute TRI disclosed pounds, not rank-adjacent ladder neighbors.
Similar facility count
Nearest parents by reporting-site count (deduped against the release-pound neighborhood).
About This Data
EPA TRI parent totals cover all media. This extract's heaviest states for the parent are North Carolina, New York; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Wolfspeed Inc's TRI parent record
From Wolfspeed Inc, open Wolfspeed Inc. or compare against Befesa Zinc US Inc. rather than reading rank alone.
- Open the largest Form R site for Wolfspeed Inc (Wolfspeed Inc. in NC). Largest facility
- Compare against Duke Energy Corp, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Wolfspeed Inc sits among all slug-merged TRI parents. All parent companies
Rank and peers (Befesa Zinc US Inc., Duke Energy Corp) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Wolfspeed Inc's record groups disclosed TRI parent-company filings so readers can compare reporting context without treating the total as a measure of risk.
Company release figures are computed directly from EPA Toxic Release Inventory data; source names and the record-linking method are documented in the methodology.
Primary sources
- EPA Toxics Release Inventory Basic Data Files - annual facility-level chemical-release disclosures
PlainEnviro renders public EPA records directly from its data pipeline; no figure on this page is typed in by an editor. See the editorial standards and corrections policy for how source changes and reported errors are handled.