Mp Industries, INC.

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
O'fallon Casting, L.l.c.	O Fallon	Aluminum Foundries (except Die-Casting) 331524	● ACTIVE	1.3 KM
HMHitchiner Manufacturing Company	Ofallon	Nonferrous Metal Foundries 331522	◐ LIKELY ACTIVE	1.5 KM
DSDidion & Sons Foundry CO	St. Peters	Iron Foundries 331511	◐ LIKELY ACTIVE	6.4 KM
Precision Components & Assemblies, INC	Saint Peters	Steel Foundries (except Investment) 331513	● ACTIVE	7.8 KM
LMLeonards Metal Inc-hwy 94 Plant	St. Charles	Nonferrous Metal Foundries 331528	◇ UNVERIFIED	22.1 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

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 AIR, AIRS/AFS, MO-DNR, NCDB, NPDES, OSHA-OIS, RCRAINFO · EPA site type STATIONARY.

• DOL Form 5500 retirement plan filingsOPERATING
  Record 431006923|MO|63366|102 n cool springs rd · first seen DEC 2024 · last seen DEC 2024
• SBA Paycheck Protection Program loan recordsEXISTENCE
  Record MO|o fallon|102 n cool springs rd · first seen MAR 2021 · last seen MAR 2021
• EPA ECHO compliance recordsOPERATING
  first seen AUG 2019 · last seen AUG 2019
• EPA Facility Registry ServiceEXISTENCE
  Record 110011085164 · first seen APR 2016 · last seen APR 2016

IN ST. CHARLES COUNTY6 other plants share this one’s industry (Foundries, NAICS 3315); 2 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: MP INDUSTRIES, INC. · OCT 2026

Street address

EPA: 102 NORTH COOL SPRINGS ROAD · OCT 2026

City

EPA: O'FALLON · OCT 2026

State

EPA: MO · OCT 2026

Coordinates

EPA: 38.81137,-90.67607 · OCT 2026

Employees (band)

DOL: 20-99 · DEC 2024

Retirement plan filing (Form 5500)

DOL: 23 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024

PPP loan

SBA PPP: PPP loan x2, approved 2021-03-17, 21 jobs reported · MAR 2021

Hazardous waste generator (RCRA)

EPA ECHO: none · OCT 2026