Consolidated revenue reached 1,576.5 billion won in 2025, extending a gradual climb from 1,429.1 billion won in 2022, 1,533.9 billion won in 2023 and 1,557.1 billion won in 2024, but operating profit dropped clearly to 140.1 billion won from 209.5 billion won in 2024.
The operating margin, which had risen from 9.1 percent in 2022 to 13.0 percent in 2023 and 13.5 percent in 2024, retreated to 8.9 percent in 2025, and net profit attributable to owners fell to 124.2 billion won from 172.4 billion won.
The bulk of the decline sat in the fourth quarter, when revenue of 440.8 billion won produced only 19.3 billion won of operating profit, a 4.4 percent margin.
On this, Kiwoom Securities in a February 2026 report separated the concentration of equipment purchase costs tied to completion of a cogeneration plant life-extension project, treated as one-off, from rising planned preventive maintenance material costs caused by aging thermal plants, treated as structural.
Margins recovered in the first quarter of 2026, with revenue of 352.4 billion won and operating profit of 37.0 billion won, a 10.5 percent margin, and Kiwoom Securities attributed this to nuclear units under planned preventive maintenance rising from five in the first quarter of 2025 to thirteen in the first quarter of 2026.
The second quarter of 2026 brought revenue of 437.9 billion won and operating profit of 43.6 billion won, both below the second quarter of 2025 at 454.0 billion won and 65.6 billion won, while net profit attributable to owners slipped from 50.9 billion won to 38.3 billion won.
As background, KB Securities pointed to a lower revenue recognition rate in nuclear maintenance as schedules for long-cycle planned preventive maintenance units were extended, plus expanded short-term labor hiring as thermal maintenance schedules overlapped.
Summing the four quarters from the third quarter of 2025 through the second quarter of 2026 gives revenue of 1,624.9 billion won, operating profit of 147.3 billion won and net profit attributable to owners of 129.8 billion won, a slightly higher earnings level than full-year 2025.
On the balance sheet, equity of 1,345.9 billion won against liabilities of 357.7 billion won at end-2025 kept the debt-to-equity ratio at a low 26.6 percent, but operating cash flow swung widely with working capital, from negative 38.1 billion won in 2023 to 540.5 billion won in 2024 and 135.7 billion won in 2025.