Magnitude 7 Metals LLC
391 St. Jude Industrial Park, Marston, MO 63866, New Madrid County
A manufacturing facility in Marston, Missouri, listed in EPA records under alumina refining and primary aluminum production (NAICS 331313) and also secondary smelting and alloying of aluminum and other aluminum rolling, drawing, and extruding. It is one of 3,907 active manufacturing facilities in EPA records in Missouri.
- Industry
- Primary metals
- NAICS 331
- TRI reporter
- Yes
- Inspections, 5 yr
- 5
- EPA registry ID
- 110043809171
- Revised
- November 1, 2026
What's made here
- Alumina Refining and Primary Aluminum Production (NAICS 331313)
- Secondary Smelting and Alloying of Aluminum (NAICS 331314)
- Other Aluminum Rolling, Drawing, and Extruding (NAICS 331318)
Public EPA records
| Toxics Release Inventory | Reports to the TRI (facility ID 63869NRNDLSTJUD). |
|---|---|
| Clean Air Act | Listed as a major source of air emissions. |
| Clean Water Act | Major and non-major water discharge permits (NPDES). |
| Hazardous waste (RCRA) | Listed as a large quantity generator of hazardous waste (1,000 kg or more a month). |
| Greenhouse gas reporting | Reports to the Greenhouse Gas Reporting Program. |
| Inspections | 5 in the last five years; most recent July 2, 2025. |
EPA ECHO, November 1, 2026; not a rating. EPA report ยท About these records