Syensqo Holding Inc
20 facilities · 10 states · 6.2M lbs total releases
According to the EPA Toxics Release Inventory, Syensqo Holding Inc is the reported parent of 20 Form R facilities across 10 states, disclosing 6.2M lbs of toxic releases. 19 of 134 reported chemicals carry a carcinogen classification in the TRI extract. The heaviest-reporting state by release volume is West Virginia (1.6M lbs). Those TRI figures remain self-reported disclosure pounds for Syensqo Holding Inc, including carcinogen-flagged substances, not a measured public-health risk score.
Release-over-release change
What changed for Syensqo Holding Inc: EPA TRI 2023 reporting year
Same facilities, both years
+43.4%
20 facilities that filed in 2022 and 2023
Whole inventory
+43.4%
1.0 million lb → 1.5 million lb, every facility that filed
- Syensqo Holding Inc's total reported releases rose from 1.0 million lb in 2022 to 1.5 million lb in 2023, based on EPA TRI filings.
- Syensqo Holding Inc's off-site transfers rose from 235.1 thousand lb in 2022 to 684.9 thousand lb in 2023, based on EPA TRI filings.
- Syensqo Holding Inc's water releases rose from 105.2 thousand lb in 2022 to 113.2 thousand lb in 2023, based on EPA TRI filings.
- Syensqo Holding Inc's chemicals reported rose from 60 in 2022 to 61 in 2023, based on EPA TRI filings.
TRI parent disclosure trail
Read Syensqo Holding Inc from filing to facility
Largest Form R sites under this parent: Cytec Industries Inc; Solvay Specialty Polymers USA LLC; Solvay Specialty Polymers USA LLC; Solvay USA LLC. Neighbor parents on the disclosure ladder: Firstenergy Corp; American Electric Power; Dominion Energy Inc; Mountain State Energy Holdings LLC. Largest disclosed chemicals by pounds: Chlorobenzene; Nitrate compounds (water dissociable; reportable only when in aqueous solution); Dimethylamine; Mixture; Hydrogen cyanide. Heaviest-reporting states in this extract: West Virginia; Ohio; Georgia. Industry labels on the parent rollup: Chemicals; Electrical Equipment; Textiles. 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: Cytec Industries Inc; Solvay Specialty Polymers USA LLC; Solvay Specialty Polymers USA LLC; Solvay USA LLC. Neighbor parents on the disclosure ladder: Firstenergy Corp; American Electric Power; Dominion Energy Inc; Mountain State Energy Holdings LLC. Largest disclosed chemicals by pounds: Chlorobenzene; Nitrate compounds (water dissociable; reportable only when in aqueous solution); Dimethylamine; Mixture; Hydrogen cyanide. Heaviest-reporting states in this extract: West Virginia; Ohio; Georgia. Industry labels on the parent rollup: Chemicals; Electrical Equipment; Textiles.
Syensqo Holding Inc ranks #228 of 4,988 slug-merged TRI parents by disclosed release pounds, mid-to-upper among parents, not a top-25 volume name. Syensqo Holding Inc spans 10 states in this extract, placing it among the broader national TRI parent footprints. Syensqo Holding Inc's disclosed pounds are spread across 20 facilities, no single site dominates the parent total in this extract.
Parent aggregation for Syensqo Holding Inc follows facility-reported names. Compare the named neighbors (Firstenergy Corp; American Electric Power; Dominion Energy Inc) before treating rank as a hazard score; TRI stays self-reported and unweighted by toxicity.
Where Syensqo Holding Inc sits among TRI parents
Syensqo Holding Inc sits on a disclosure ladder beside Firstenergy Corp and American Electric Power and Dominion Energy Inc and Mountain State Energy Holdings LLC. Open those parents for a different facility count, state span, and chemical mix.
Higher disclosed volume
- Firstenergy Corp · rank #226 · 38.5M lbs
- American Electric Power · rank #227 · 22.7M lbs
Lower disclosed volume
- Dominion Energy Inc · rank #229 · 5.6M lbs
- Mountain State Energy Holdings LLC · rank #230 · 3.3M lbs
Largest chemicals disclosed by Syensqo Holding Inc
Chlorobenzene; Nitrate compounds (water dissociable; reportable only when in aqueous solution); Dimethylamine; Mixture; Hydrogen cyanide lead the Form R pound rollup for this parent, including filings such as Cytec Industries Inc. Pound totals, not toxicity-weighted risk.
| Chemical | Disclosed lbs |
|---|---|
| Chlorobenzene | 1.6M lbs |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1.1M lbs |
| Dimethylamine | 610.6K lbs |
| Mixture | 483.6K lbs |
| Hydrogen cyanide | 380.5K lbs |
Where does this company operate?
| State | Facilities | Total Releases |
|---|---|---|
| West Virginia | 1 | 1.6M lbs |
| Ohio | 1 | 1.5M lbs |
| Georgia | 3 | 1.1M lbs |
| Texas | 4 | 735.8K lbs |
| South Carolina | 3 | 649.7K lbs |
| Tennessee | 1 | 381.0K lbs |
| Louisiana | 1 | 123.0K lbs |
| New Jersey | 1 | 67.0K lbs |
| Maryland | 2 | 53.8K lbs |
| California | 3 | 36.8K lbs |
Facilities (20)
Frequently Asked Questions
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Compare beyond the release ladder
Nationwide peers by disclosed pounds & facility count
Cross-portfolio TRI parents nearest Syensqo Holding Inc on total disclosed release pounds (6.2M lbs) and reporting facility count (20). Release-volume peers include Nextera Energy Inc, Entergy Corp, Commercial Metals Co. Facility-count peers include Dominion Energy Inc, Evonik Corp, Koch Foods 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 West Virginia, Ohio, Georgia; facility-reported names can vary across subsidiaries.
Source: U.S. Environmental Protection Agency, TRI Basic Data Files
What to do with Syensqo Holding Inc's TRI parent record
From Syensqo Holding Inc, open Cytec Industries Inc or compare against Firstenergy Corp rather than reading rank alone.
- Open the largest Form R site for Syensqo Holding Inc (Cytec Industries Inc in WV). Largest facility
- Compare against American Electric Power, the next-higher disclosed-volume parent. Higher-volume parent
- Browse the full parent release ranking to see where Syensqo Holding Inc sits among all slug-merged TRI parents. All parent companies
Rank and peers (Firstenergy Corp, American Electric Power) are disclosure volume only, not toxicity-weighted risk or enforcement status.
Use and verify this record
Syensqo Holding 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.