![A Hyosung Heavy Industries 765-kV ultra-high-voltage transformer installed on the U.S. power grid. [Photo provided by Hyosung Heavy Industries]](https://image.ajunews.com/content/image/2026/02/10/20260210085600520311.jpg)
SEOUL, February 10 (AJP) - South Korea's Hyosung Heavy Industries said on Monday it had secured its largest order to date in the United States.
The company signed a contract worth about 787 billion won ($538 million) with a major U.S. transmission grid operator to supply 765-kilovolt ultra-high-voltage transformers, reactors and related equipment. It described the deal as the largest single U.S. project ever won by a South Korean power-equipment manufacturer.
Hyosung Heavy said it was also the first South Korean company last year to secure a U.S. order covering a full package of ultra-high-voltage equipment, including 765-kV transformers and 800-kV circuit breakers.
U.S. electricity demand is expected to grow roughly 25 percent over the next decade, driven by rapid construction of artificial intelligence data centers and increased adoption of electric vehicles, the company said.
Utilities are accelerating investment in 765-kV transmission networks, which enable large volumes of electricity to be transmitted over long distances with lower losses compared with 345-kV and 500-kV systems.
Hyosung Heavy said it has supplied about half of the 765-kV transformers installed across U.S. transmission networks and has held the top market share in that segment since the 2010s. Its capability to produce equipment including 800-kV circuit breakers positions the firm as a comprehensive supplier for U.S. ultra-high-voltage projects, it added.
Hyosung Heavy established its U.S. subsidiary in 2001 and became the first South Korean company to export a 765-kV transformer to the United States in 2010. Since 2020, it has operated a transformer manufacturing plant in Memphis, Tennessee, which the company said is currently the only U.S. facility capable of designing and producing 765-kV transformers.
“With the spread of AI and data centers, power infrastructure has become a core industry directly tied to national security,” Chairman Cho Hyun-joon said in a press release. “Based on our Memphis production base and ultra-high-voltage technology, we aim to become an indispensable partner in stabilizing the U.S. power grid.”
In 2020, Hyosung Heavy decided to acquire a Tennessee-based ultra-high-voltage transformer facility and invest a total of $300 million to expand capacity. Once expansion is completed, the Memphis plant is expected to have the largest production capacity of its kind in the United States.
* This article, published by Aju Business Daily, was translated by AI and edited by AJP.
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