Prem Magnetics, Inc.

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
AEActown Electrocoil INC	Spring Grove	Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing 334416	◇ UNVERIFIED	6.8 KM
LELake Electronics, Inc.	Volo	Printed Circuit Assembly (Electronic Assembly) Manufacturing 334418	◐ LIKELY ACTIVE	9.3 KM
Optical Fiber Packaging CORP.	Crystal Lake	Fiber Optic Cable Manufacturing 335921	● ACTIVE	11.3 KM
Olsun Electrics CORP	Richmond	Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing 334416	● ACTIVE	12.8 KM
Pos Remarketing Group INC	Wauconda	Computer Terminal and Other Computer Peripheral Equipment Manufacturing 334118	● ACTIVE	13.7 KM

Every listed plant in McHenry County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 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 ACES, AIR, AIRS/AFS, EIS, RCRAINFO, TRIS · EPA site type STATIONARY.

• OSHA injury and illness reportsOPERATING
  Record 899951 · first seen DEC 2025 · last seen DEC 2025
• DOL Form 5500 retirement plan filingsOPERATING
  Record 363023792|IL|60051|3521 chapel hill rd · first seen DEC 2024 · last seen DEC 2024
• SBA Paycheck Protection Program loan recordsEXISTENCE
  Record IL|mchenry|3521 n chapel hill rd · first seen APR 2020 · last seen APR 2020
• EPA Facility Registry ServiceEXISTENCE
  Record 110001346874 · first seen JUN 2017 · last seen JUN 2017

IN MCHENRY COUNTY8 other plants share this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 3 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: PREM MAGNETICS INC · JUL 2026

Street address

EPA: 3521 N CHAPEL HILL RD · JUL 2026

City

EPA: MCHENRY · JUL 2026

State

EPA: IL · JUL 2026

County (FIPS code)

EPA: 17111 · SEP 2026

CoordinatesSOURCES DISAGREE

Census geocoder: 42.378248625298,-88.239204653383 · JUL 2026 · ON THIS PAGE

EPA: 42.37813,-88.240183 · JUL 2026

Employees (band)

OSHA: 20-99 · DEC 2025

Retirement plan filing (Form 5500)

DOL: 22 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024

PPP loan

SBA PPP: PPP loan x1, approved 2020-04-14, 31 jobs reported · APR 2020