Hyosung Wins ₩386.5 Billion in Transformer Contracts for Two US AI Data Centers

Hyosung Heavy Industries said on September 15 that it had secured contracts worth a combined ₩386.5 billion to supply ultra-high-voltage transformers for two new AI data centers in the United States.

The southern US project accounts for ₩220 billion of the total and is to receive 765 kV transformer equipment. A second project in the northern United States accounts for ₩166.5 billion and is to receive 345 kV equipment. Hyosung did not identify the two US Big Tech customers or disclose the specific data-center locations.

For data-center developers and power-system operators, the contracts illustrate the grid-infrastructure requirements associated with new AI-oriented campuses. High-voltage transformers are central to connecting large loads to transmission and regional networks and to providing the electrical infrastructure needed for reliable operation. The order may reinforce indications that supply chains for high-voltage transformers, switching equipment and grid-stability systems could become a constraint on AI data-center expansion.

The company is expanding its ultra-high-voltage transformer plant in Memphis, Tennessee. Separately, it formed a joint venture with Quanta in July to manufacture ultra-high-voltage circuit breakers in North America. The available information does not establish whether either initiative will supply these specific contracts.

Hyosung reported cumulative new orders of about ₩9.3 trillion through the end of August and raised its annual order target to ₩12 trillion from ₩8.4 trillion. Separately, Goldman Sachs projects US data-center power demand to grow at an average annual rate of 15% through 2030, with approximately $50 billion of investment estimated for new power infrastructure to support that growth. Those figures are third-party market estimates, rather than parameters of Hyosung’s two contracts.