Hyundai-Posco starts $5.8bn US auto steel

Hyundai-Posco Louisiana Steel (HPLS), a joint venture between Hyundai Steel and Posco, has started constructing a $5.8 billion integrated steel plant in Ascension Parish, Louisiana. The plant is scheduled to begin production in the first quarter of 2029 and will directly employ more than 1,300 people.

According to the company, the facility will be the first of its kind in the US dedicated to automotive steel sheets. It will primarily supply low-carbon steel sheets to automakers across North America, with the Hyundai Motor Group (HMG) as a key customer.

Project funding and structure

The joint venture partners are funding the project through a specific ownership structure. HPLS itself will contribute half of the required capital. Posco Group will invest 20%, while Hyundai and Kia will each contribute 15%.

The investment also supports South Korea's broader $350 billion US investment commitment under a 2025 trade deal. Hyundai Motor Group separately committed $26 billion to US investment last year under a related agreement.

Plant specifications and logistics

The new facility is being built on a 1,800-acre site within the RiverPlex MegaPark. It is described as an electric arc furnace plant, a method the company says will result in 70% lower CO₂ emissions compared to conventional blast furnace plants.

Its location provides critical logistical advantages. Built near the Mississippi River, the plant will have direct access to a deep-water port, rail lines, and interstate highway connections. HPLS states this will enable efficient movement of raw materials inbound and final steel products outbound across the continent.

Strategic aims and market impact

In a statement, HPLS said the plant will strengthen US manufacturing resilience and localize critical supply chains. The company claims integrating steel production directly into the US automotive ecosystem will enhance efficiency, reliability, and national competitiveness.

Hyundai Motor Group Chairman Chung Eui-sun emphasized the plant's role in supporting next-generation vehicle production. Speaking at the groundbreaking ceremony, he said, "The steel products produced here will help not only Hyundai Motor Group but also other automakers produce next-generation mobility."

The plant is positioned to feed the growing automotive manufacturing base in North America, providing a localized source for high-grade, lower-emission steel directly to the plant-floor network.