Hyosung Heavy Industries Builds Additional Ultra-High Voltage Transformer Plants in the USA

Invests significantly in a plant in Tennessee, USA, five years after the acquisition from Mitsubishi of Japan

Hyosung Heavy Industries carried out an additional investment of approximately KRW 200 billion in its ultra-high voltage transformer plant in Tennessee, USA. With the investment, it has secured the largest production base in the region.
Hyosung Heavy Industries recently announced that it will invest an additional US$ 157 million (approximately KRW 230 billion) in its ultra-high voltage transformer plant in Memphis, Tennessee, expanding production capacity by more than 50% by 2028. Hyosung Heavy Industries acquired the plant from Mitsubishi of Japan in 2020 for US$ 46.5 million (approximately KRW 68 billion).
The Memphis plant is the only facility in the United States that is capable of designing and manufacturing 765kV ultra-high voltage transformers. These transformers are key components that convert voltage in the first stage of power transmission — determining the stability, efficiency, and operational reliability of the power grid.

Since the early 2010s, Hyosung Heavy Industries has maintained a dominant market share in the U.S. 765kV ultra-high voltage transformer market, supplying approximately half of the transformers installed in the local transmission grid. To achieve this, Hyosung Heavy Industries has invested a total of US$ 300 million (approximately KRW 440 billion) through three expansions since acquiring the Memphis plant.
Such investment by Hyosung Heavy Industries is a strategic response to the changing environment of the U.S. market. Recently in the United States, demand for power-grid expansion is skyrocketing, driven by the replacement of decrepit power facilities and the growth of power-intensive industries such as AI data centers. The local transformer market is growing at an average annual rate of approximately 7.7%, from approximately US$ 12.2 billion (approximately KRW 17.8 trillion) in 2024 to approximately US$ 25.7 billion (approximately KRW 37.5 trillion) in 2034.

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