Facility	City	Industry	Status	Distance
Westar Display Technologies, INC	Saint Charles	Commercial and Service Industry Machinery Manufacturing 333310	ACTIVE	0.9 KM
Magna Technologies, INC.	Weldon Spring	Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals 334515	ACTIVE	3.8 KM
Rpmc Lasers INC.	O Fallon	Semiconductor and Related Device Manufacturing 334413	ACTIVE	10.4 KM
Abm Federal Sales, INC.	Wildwood	Computer Terminal and Other Computer Peripheral Equipment Manufacturing 334118	ACTIVE	11.6 KM
Fin-con Assembly Group, INC.	O Fallon	Other Communication and Energy Wire Manufacturing 335929	LIKELY ACTIVE	11.7 KM

Every listed plant in St. Charles County

Also at this address

No other federal record shares this street address.

Where this record comes from

1 source holds this plant, and 7 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 RCRAINFO · EPA site type STATIONARY.

EPA Facility Registry ServiceEXISTENCE
Record 110070540493 · first seen APR 2019 · last seen APR 2019

IN ST. CHARLES COUNTY10 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: GCL SOLAR MATERIALS US III LLC · OCT 2026
Street address: EPA: 4 RESEARCH PARK DR SUITE 100 · OCT 2026
City: EPA: ST CHARLES · OCT 2026
State: EPA: MO · OCT 2026
County (FIPS code): EPA: 29183 · OCT 2026
Coordinates: EPA: 38.7071,-90.68151 · OCT 2026
Hazardous waste generator (RCRA): EPA ECHO: none · OCT 2026

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