Howmet Aerospace Inc
24 facilities · 10 states · 4.1M lbs total releases
According to the EPA Toxics Release Inventory, Howmet Aerospace Inc is the reported parent of 24 Form R facilities across 10 states, disclosing 4.1M lbs of toxic releases. 5 of 102 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is Ohio (2.3M lbs). Those TRI figures remain self-reported disclosure pounds for Howmet Aerospace Inc, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Howmet Aerospace Inc: EPA TRI 2023 reporting year
Same facilities, both years
+13.5%
22 facilities that filed in 2022 and 2023
Whole inventory
+0.3%
704.7 thousand lb → 706.5 thousand lb, every facility that filed
- Howmet Aerospace Inc's air releases rose from 53.2 thousand lb in 2022 to 60.4 thousand lb in 2023, based on EPA TRI filings.
- Howmet Aerospace Inc's chemicals reported fell from 16 in 2022 to 15 in 2023, based on EPA TRI filings.
- Howmet Aerospace Inc's off-site transfers fell from 651.4 thousand lb in 2022 to 646.0 thousand lb in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Howmet Aerospace Inc from filing to facility
Largest Form R sites under this parent: Howmet Aerospace Cleveland Works; Howmet Fastening Systems Waco; Rmi Titanium Co LLC; Howmet Corp - Plant 5. Neighbor parents on the disclosure ladder: Cleveland-Cliffs Inc; Ineos US I Inc. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Aluminum (fume or dust); Hydrogen fluoride; Zinc compounds; Nitric acid. Heaviest-reporting states in this extract: Ohio; Texas; Michigan. Industry labels on the parent rollup: Fabricated Metals; Primary Metals; Transportation Equipment; Machinery. Start from those named sites and neighbors rather than a generic parent blurb; pounds stay disclosure, not risk.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files Toxics Release Inventory (TRI) · August 2026
Largest Form R sites under this parent: Howmet Aerospace Cleveland Works; Howmet Fastening Systems Waco; Rmi Titanium Co LLC; Howmet Corp - Plant 5. Neighbor parents on the disclosure ladder: Cleveland-Cliffs Inc; Ineos US I Inc. Largest disclosed chemicals by pounds: Nitrate compounds (water dissociable; reportable only when in aqueous solution); Aluminum (fume or dust); Hydrogen fluoride; Zinc compounds; Nitric acid. Heaviest-reporting states in this extract: Ohio; Texas; Michigan. Industry labels on the parent rollup: Fabricated Metals; Primary Metals; Transportation Equipment; Machinery.
Howmet Aerospace Inc ranks #307 of 4,988 slug-merged TRI parents, a smaller disclosed-volume parent relative to the national Form R parent set. Howmet Aerospace Inc spans 10 states in this extract, placing it among the broader national TRI parent footprints. Howmet Aerospace Inc's disclosed pounds are spread across 24 facilities, no single site dominates the parent total in this extract.
Parent aggregation for Howmet Aerospace Inc follows facility-reported names. Compare the named neighbors (Cleveland-Cliffs Inc; Ineos US I Inc) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Howmet Aerospace Inc sits among TRI parents
Howmet Aerospace Inc sits on a disclosure ladder beside Cleveland-Cliffs Inc and Ineos US I Inc. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Cleveland-Cliffs Inc · rank #305 · 64.3M lbs
- Ineos US I Inc · rank #306 · 42.4M lbs
Largest chemicals disclosed by Howmet Aerospace Inc
Nitrate compounds (water dissociable; reportable only when in aqueous solution); Aluminum (fume or dust); Hydrogen fluoride; Zinc compounds; Nitric acid lead the Form R pound rollup for this parent, including filings such as Howmet Aerospace Cleveland Works. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1.2M lbs |
| Aluminum (fume or dust) | 783.6K lbs |
| Hydrogen fluoride | 513.5K lbs |
| Zinc compounds | 477.0K lbs |
| Nitric acid | 361.3K lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| Ohio | 4 | 2.3M lbs |
| Texas | 2 | 784.3K lbs |
| Michigan | 4 | 575.0K lbs |
| California | 7 | 220.0K lbs |
| Missouri | 1 | 190.6K lbs |
| Georgia | 1 | 14.6K lbs |
| Indiana | 1 | 12.2K lbs |
| Virginia | 1 | 11.7K lbs |
| New York | 1 | 4.4K lbs |
| Connecticut | 2 | 2.4K lbs |
Facilities (24)
| Facility | Releases |
|---|---|
| Howmet Aerospace Cleveland Works Cuyahoga Heights, OH | 1.3M lbs |
| Howmet Fastening Systems Waco Waco, TX | 649.8K lbs |
| Rmi Titanium Co LLC Niles, OH | 541.9K lbs |
| Howmet Corp - Plant 5 Whitehall, MI | 449.5K lbs |
| Rmi Titanium Co LLC Canton, OH | 430.9K lbs |
| Rti Advanced Forming Inc. Washington, MO | 190.6K lbs |
| Howmet Global Fastening Systems Inc. Fullerton, CA | 140.7K lbs |
| Howmet Castings & Services Inc Wichita Falls, TX | 134.5K lbs |
| Howmet Corp - Plants 1& 3 Whitehall, MI | 68.1K lbs |
| Howmet Corp-Plant 10 Whitehall, MI | 53.1K lbs |
| Huck International Inc Carson, CA | 40.0K lbs |
| Schlosser Forge Co Rancho Cucamonga, CA | 15.9K lbs |
| Firth Rixson Forgings LLC Midway, GA | 14.6K lbs |
| Forged Metals Inc Fontana, CA | 12.7K lbs |
| Howmet Castings & Services Inc. La Porte, IN | 12.2K lbs |
| Howmet Castings & Services Inc Hampton, VA | 11.7K lbs |
| Howmet Global Fastening Systems Inc Torrance, CA | 9.6K lbs |
| Firth Rixson Inc Rochester, NY | 4.4K lbs |
| Howmet Corp - Plant 4 Whitehall, MI | 4.3K lbs |
| Howmet Castings & Services Inc. Winsted, CT | 2.0K lbs |
| Valley Todeco Sylmar, CA | 962 lbs |
| Turbine Components Corp Branford, CT | 324 lbs |
| Howmet Global Fastening Systems Inc. City Of Industry, CA | 164 lbs |
| Tempcraft Corp Cleveland, OH | 0 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 Howmet Aerospace Inc on total disclosed release pounds (4.1M lbs) and reporting facility count (24). Release-volume peers include Kimberly-Clark Corp, Patrick Industries Inc, Fujifilm Holdings America Corp. Facility-count peers include Dow Inc, Global Partners LP, Hydro Extrusion USA LLC. 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 Ohio, Texas, Michigan; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Howmet Aerospace Inc's TRI parent record
From Howmet Aerospace Inc, open Howmet Aerospace Cleveland Works or compare against Cleveland-Cliffs Inc rather than reading rank alone.
- Open the largest Form R site for Howmet Aerospace Inc (Howmet Aerospace Cleveland Works in OH). Largest facility
- Compare against Ineos US I Inc, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Howmet Aerospace Inc sits among all slug-merged TRI parents. All parent companies
Rank and peers (Cleveland-Cliffs Inc, Ineos US I Inc) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Howmet Aerospace 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.