Denka Performance Elastomer LLC

560 Highway 44, Laplace, LA 70068

ACTIVELAST SEEN IN FEDERAL DATA JUN 2026 · 5 SOURCES

Operating signal within 12 months from two or more independent sources.

WARN ACT NOTICE FILED WITH THE STATE

WARN notice effective APR 1, 2026 · 45 employees · filed JAN 30, 2026 — recorded; it does not change the status

Notices filed with the state under the federal WARN Act, as the state publishes them, collected by the WARN Act notices feed (CC BY 4.0). A notice records what the employer told the state; it is not by itself proof that the plant closed.

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What they make

Petrochemical Manufacturing325110

Where it is

30.05674, -90.52429 · CENSUS TIGER

COUNTY

St. John the Baptist County

METRO AREA

New Orleans-Metairie, LA

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Other plants nearby

Facility	City	Industry	Status	Distance
Dupont Pontchartrain Site	La Place	Petrochemical Manufacturing 325110	ACTIVE	0.2 KM
Dpc Enterprises LP - Dpce-reserve	Reserve	Other Basic Inorganic Chemical Manufacturing 325180	LIKELY ACTIVE	4.3 KM
Marathon Petroleum CO LP - Louisiana Refining Division - Garyville Refinery	Garyville	Petroleum Refineries 324110	LIKELY ACTIVE	7.7 KM
Evonik Stockhausen LLC	Garyville	All Other Basic Organic Chemical Manufacturing 325199	LIKELY ACTIVE	8.4 KM
Air Products & Chemicals INC - Taft I Hy	Taft	Industrial Gas Manufacturing 325120	LIKELY ACTIVE	10.1 KM

Every listed plant in St. John the Baptist County

Also at this address

No other federal record shares this street address.

Where this record comes from

5 sources hold this plant, and 9 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in AIR, BR, CEDRI, EIS, ICIS, LA-TEMPO, NCDB, NPDES, OSHA-OIS, RCRAINFO, TRIS, TSCA · EPA site type STATIONARY.

EPA ECHO compliance recordsOPERATING
first seen JUN 2026 · last seen JUN 2026
State WARN plant-closing and layoff noticesEXISTENCE
first seen APR 2026 · last seen APR 2026
DOL Form 5500 retirement plan filingsOPERATING
Record 320456515|LA|70068|560 hwy 44 · first seen OCT 2025 · last seen OCT 2025
EPA Toxics Release InventoryOPERATING
first seen DEC 2023 · last seen DEC 2024
EPA Facility Registry ServiceEXISTENCE
Record 110067396669 · first seen JUN 2019 · last seen JUN 2019

IN ST. JOHN THE BAPTIST COUNTY5 other plants share this one’s industry (Basic Chemical Manufacturing, NAICS 3251); 1 of them has a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name: EPA: DENKA PERFORMANCE ELASTOMER LLC · OCT 2026
Street address: EPA: 560 HIGHWAY 44 · OCT 2026
City: EPA: LAPLACE · OCT 2026
State: EPA: LA · OCT 2026
County (FIPS code): EPA: 22095 · OCT 2026
Coordinates: EPA: 30.056742,-90.52429 · OCT 2026
Employees (band): DOL: 100-499 · OCT 2025
Retirement plan filing (Form 5500): DOL: 241 active participants, plan year ending 2025-10-31, 2 plan(s) · OCT 2025
Hazardous waste generator (RCRA): EPA ECHO: LQG · OCT 2026

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