Operating signal within 12 months from two or more independent sources.
What they make
Plate Work Manufacturing332313- stainless steel tanks
- modular skids
- vacuum chambers
- mixing tanks
- ASME pressure vessels
- pharmaceutical
- food
- beverage
- storage tanks
- alternative energy
- life sciences
- chemical/fine chemical manufacturers
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Lyman-Morse Fabrication | Thomaston | Fabricated Structural Metal Manufacturing 332312 | LIKELY ACTIVE | 3.7 KM |
| Lyman Morse Boatbuilding, INC. | Thomaston | Boat Building 336612 | ACTIVE | 7.4 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
4 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 OSHA-OIS.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord M7PAD71J8KV6 · first seen FEB 2026 · last seen OCT 2026
- DOL Form 5500 retirement plan filingsOPERATINGRecord 010357730|ME|04841|p o box 449 · first seen DEC 2024 · last seen DEC 2024
- EPA Facility Registry ServiceEXISTENCERecord 110070275638 · first seen SEP 2018 · last seen SEP 2018
IN KNOX COUNTY2 other plants share this one’s industry (Architectural and Structural Metals Manufacturing, NAICS 3323); 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: STEEL-PRO, INC. · JUL 2026 · ON THIS PAGE
- SAM.gov: STEEL-PRO INC · ON THIS PAGE
- Street addressSOURCES DISAGREE
- EPA: 771 MAIN STREET · JUL 2026
- SAM.gov: 771 MAIN ST · ON THIS PAGE
- City
- EPA: ROCKLAND · JUL 2026 · ON THIS PAGE
- SAM.gov: ROCKLAND · ON THIS PAGE
- State
- EPA: ME · JUL 2026 · ON THIS PAGE
- SAM.gov: ME · ON THIS PAGE
- Coordinates
- EPA: 44.11212,-69.10596 · JUL 2026
- Employees (band)
- DOL: 20-99 · DEC 2024
- Website
- SAM.gov: www.steelprousa.com
- CAGE code
- SAM.gov: 3MAH3
- Retirement plan filing (Form 5500)
- DOL: 39 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
- SAM registration expires
- SAM.gov: 2027-01-29
- State business registration
- TX Comptroller: STEEL-PRO, INC., registered with the Texas Comptroller of Public Accounts; Corporation; revoked