Facility	City	Industry	Status	Distance
Valid USA	South Plainfield	All Other Plastics Product Manufacturing 326199	UNVERIFIED	0.4 KM
Perry Technology	South Plainfield	Plastics Product Manufacturing 326100	UNVERIFIED	1.2 KM
Parkway Plastics INC	Piscataway	All Other Plastics Product Manufacturing 326199	LIKELY ACTIVE	1.5 KM
Evonik CORP	Piscataway	Other Basic Inorganic Chemical Manufacturing 325180	ACTIVE	1.9 KM
All American Poly Corporation	Piscataway	Plastics Bag and Pouch Manufacturing 326111	LIKELY ACTIVE	1.9 KM

Every listed plant in Middlesex County

Also at this address

No other federal record shares this street address.

Where this record comes from

5 sources hold this plant, and 11 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, AIRS/AFS, ICIS, NJ-NJEMS, NPDES, OSHA-OIS, SFDW, TRIS · EPA site type STATIONARY.

EPA ECHO compliance recordsOPERATING
first seen NOV 2025 · last seen NOV 2025
EPA Toxics Release InventoryOPERATING
first seen DEC 2023 · last seen DEC 2024
DOL Form 5500 retirement plan filingsOPERATING
Record 221476437|NJ|07080|3451 s clinton ave · first seen DEC 2024 · last seen DEC 2024
SBA Paycheck Protection Program loan recordsEXISTENCE
Record NJ|south plainfield|3451 s clinton ave · first seen MAY 2020 · last seen MAY 2020
EPA Facility Registry ServiceEXISTENCE
Record 110030725133 · first seen JUN 2016 · last seen JUN 2016

IN MIDDLESEX COUNTY53 other plants share this one’s industry (Plastics Product Manufacturing, NAICS 3261); 26 of them have 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: KEYSTONE PLASTICS INC · OCT 2026
Street address: EPA: 3451 S CLINTON AVE · OCT 2026
City: EPA: SOUTH PLAINFIELD · OCT 2026
State: EPA: NJ · OCT 2026
County (FIPS code): EPA: 34023 · OCT 2026
Coordinates: EPA: 40.56985,-74.43009 · OCT 2026
Employees (band): DOL: 100-499 · DEC 2024
Year established: NY DOS: 1945 · AUG 1945
Retirement plan filing (Form 5500): DOL: 146 active participants, plan year ending 2024-12-31, 4 plan(s) · DEC 2024
PPP loan: SBA PPP: PPP loan x1, approved 2020-05-01, 127 jobs reported · MAY 2020
State business registrationSOURCES DISAGREE: NJ DORES: KEYSTONE PLASTICS, INC., registered with the New Jersey Division of Revenue and Enterprise Services; Corporation; formed 1950-01-18; active · JAN 1950; NY DOS: KEYSTONE PLASTICS INC., registered with the New York Department of State, Division of Corporations; Corporation; formed 1945-08-13; active · AUG 1945; TX Comptroller: KEYSTONE PLASTICS, INC, registered with the Texas Comptroller of Public Accounts; Corporation; active

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