Louisiana EAF steel mill, RiverPlex MegaPark
Hyundai Steel (with POSCO), Donaldsonville, Ascension Parish, Louisiana
Louisiana EAF steel mill, RiverPlex MegaPark in Donaldsonville, Louisiana is Hyundai Steel (with POSCO)’s plant for automotive hot- and cold-rolled steel sheet. Status: under construction as of September 4, 2026 (groundbreaking). Hyundai Steel (with POSCO) announced $5.8 billion and 1,400 jobs. Primary source: gov.louisiana.gov, checked November 1, 2026.
- Status
- Under construction
- Announced investment
- $5.8 billion
- Announced jobs
- 1,400
- Industry
- Steel and metals
- Sheet
- LA-09
- Revised
- November 1, 2026
Status timeline
- Announcedgov.louisiana.gov
- Groundbreakinghyundaimotorgroup.com
Filled dots are confirmed by a company, state, SEC or federal source. Dashed dots come from news reports only. Investment and job figures are as announced, not achieved.
Plant facts
| Company | Hyundai Steel (with POSCO) |
|---|---|
| Plant | Louisiana EAF steel mill, RiverPlex MegaPark |
| Location | Donaldsonville, Ascension Parish, Louisiana |
| Industry | Steel and metals |
| Product | Automotive hot- and cold-rolled steel sheet |
| Announced investment | $5.8 billionMill investment per announcement |
| Announced jobs | 1,400 |
| Last checked | November 1, 2026 |
Sources
- Gov. Landry: Hyundai selects Louisiana (state release, gov.louisiana.gov, checked November 1, 2026)
- Hyundai Steel celebrates Louisiana project launch (company release, hyundaimotorgroup.com, checked November 1, 2026)
- LED Hyundai Steel project page (state release, opportunitylouisiana.gov, checked November 1, 2026)
- WAFB: groundbreaking amid opposition (news report, wafb.com, checked November 1, 2026)
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