Hyundai Steel Breaks Ground on $5.8 Billion Louisiana Steel Mill, the First EAF-Integrated Plant in North America

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Hyundai Steel held a groundbreaking ceremony Thursday in Ascension Parish, Louisiana for what will become North America’s first Electric Arc Furnace-based integrated steel mill, a $5.8 billion joint venture that changes how Hyundai Motor Group sources the steel in its U.S.-built cars.

The facility, operated by HYUNDAI-POSCO Louisiana Steel LLC, a joint venture with POSCO, Hyundai Motor Company, and Kia Corporation, targets commercial production in 2029. At full capacity it will turn out 2.7 million metric tons of hot-rolled and cold-rolled automotive steel per year and is expected to support 5,400 jobs, 1,300 of them direct positions. The project falls under Hyundai Motor Group’s $26 billion U.S. investment commitment through 2028, announced in 2025.

The engineering distinction matters here. Most U.S. EAF mills melt scrap and produce long steel products for construction. This facility pairs a Direct Reduction Plant, which produces Direct Reduced Iron on site, with two EAFs fed by continuous charging, then routes the output through advanced refining and continuous casting to achieve the tighter nitrogen and sulfur tolerances that automotive-grade flat steel demands. That integrated configuration is what makes the plant a first in North America rather than simply another EAF addition to a crowded domestic market. U.S. EAF output is already on a growth trajectory, modeled to climb from 59.0 million metric tons in 2025 to 74.5 million metric tons by 2031 as new capacity comes online.

On carbon, the process is consequential. Hyundai Steel says the production route cuts CO₂ emissions from molten steel roughly 70 percent compared with its conventional blast furnace operations in Korea. The facility is also designed to replace the natural gas used in the Direct Reduction Plant with hydrogen as supply infrastructure develops, with carbon capture capabilities built in from the start.

The supply logic is straightforward. Steel produced in Louisiana feeds Hyundai Motor’s Alabama plant, Kia’s Georgia facility, and Hyundai Motor Group Metaplant America, cutting the ocean freight and lead times currently baked into importing Korean-made steel. The mill will also sell to other U.S. automakers, making HPLS a merchant supplier rather than a pure captive source. Hyundai Steel brought EAF experience to this project: the company has operated EAF technology for more than 70 years and produced approximately 1 million metric tons of automotive steel using EAF methods between 2007 and 2010 alone.

The workforce build is already underway. HPLS is developing a training center at River Parishes Community College in Donaldsonville, with dual enrollment for local high school students and a research agreement with Louisiana State University focused on next-generation steelmaking. The 1,300 direct jobs carry an average starting salary of $95,000.

The project was first disclosed at the White House in March 2025 and fits the broader expansion Hyundai Motor Group has been executing across the U.S. manufacturing base. Hyundai’s U.S. retail volume has been growing even as the industry navigates tariff uncertainty, and locking in a domestic steel supply removes one variable from the cost structure of every vehicle assembled at the Group’s American plants. Since entering the U.S. market in 1986, Hyundai Motor Group has invested more than $20.5 billion domestically; the Louisiana mill extends that footprint further upstream than the Group has gone before.

A $5.8 billion bet on flat-rolled automotive steel, placed three years before the first coil ships, is either disciplined vertical integration or a very expensive hedge against trade policy. Given that the Group raised its 2030 operating profit margin target above 9 percent at its investor day earlier this year, the math apparently works either way.

Source: Hyundai. Images courtesy of Hyundai.