Kumyang Green Power was founded in 1993 as an electrical construction specialist and listed on KOSDAQ in 2023, operating as a comprehensive construction and electrical works company.
Its business rests on three pillars: electrical construction for plants and power stations, renewable energy project development and EPC across wind, solar, and fuel cells, and design and routine maintenance services.
At the time of listing in 2021, plant and power-station electrical construction accounted for 75.8% of revenue while renewables made up just 5.1%, but the company has since executed a strategy to pivot toward renewables.
According to one brokerage analysis, the renewable energy revenue share rose from about 9.0% in 2022 to 29.1% on a cumulative basis through the third quarter of 2025.
Major projects include electrical construction for Saeul Nuclear Units 3 and 4, the 100MW Haeoreum solar power plant, and the self-developed Gyeongbuk-1 onshore wind farm (50MW), while overseas the company has built a track record on Saudi Aramco's Amiral project (contracted through Hyundai Engineering & Construction), the Saudi Jafurah plant, and a plant project in Hungary.
The company absorbed GIPS, a specialist in nuclear and thermal power plant design and maintenance, to prepare its entry into the nuclear maintenance market, and has already secured qualification for nuclear instrumentation and control (I&C) maintenance services.
Clients include Korea Hydro & Nuclear Power and Hyundai Engineering & Construction domestically, alongside overseas clients such as Saudi Aramco, and the company competes with players such as SK Ecoplant, SK Eternix, and Daemyung Energy in the domestic renewable development and EPC market.
Ownership is concentrated among related parties, with the CEO registered as the largest shareholder holding over 10% of shares.