Hyosung Heavy Industries (Hyosung HICO) transformers
Seoul-based group whose Memphis, Tennessee plant, bought from Mitsubishi Electric in 2019, builds 69 kV to 765 kV power transformers up to 2,250 MVA.
Facts
- Headquarters
- Seoul, South Korea
- US manufacturing
- US plant verified
- Transformer types
- high-voltage power transformers 69-765 kV, up to 2,250 MVA
- Product classes
- Large power, Substation, GSU
- Parent company
- Hyosung Group
- Announced capacity
- $300M expansion of the Memphis transformer plant (Korea Times, Oct 2026); HVDC transformer plant in Changwon, South Korea, scheduled for completion in 2027 (Wikipedia).
- Checked
Sources
- Hyosung HICO accessed 2026-11-09
- Wikipedia: Hyosung Heavy Industries accessed 2026-11-09
- Power equipment makers race to expand US capacity amid AI boom (Korea Times, 28 Oct 2026) accessed 2026-11-09
Makers of the same classes
All manufacturers- Delta Star
- Eaton
- Elsewedy Electric
- HD Hyundai Electric
- Hitachi Energy
- JST Power Equipment
- Končar
- Mitsubishi Electric
Lead times for these classes, sourced and dated, are on the transformer lead times tracker.