Annual revenue has stayed in a relatively narrow band, moving from KRW 1.2532 trillion in 2022 to KRW 1.2168 trillion in 2023, KRW 1.2124 trillion in 2024, and KRW 1.2226 trillion in 2025.
Operating profit, however, showed a clear recovery trend, rising from KRW 7.0 billion in 2022 to KRW 10.0 billion in 2023, KRW 23.3 billion in 2024, and KRW 28.1 billion in 2025, a 20.5% year-over-year increase.
Net income attributable to owners tells a different story: it spiked to KRW 153.8 billion in 2023 before falling to KRW 32.1 billion in 2024 and KRW 17.2 billion in 2025, a pattern whose large gap versus operating profit suggests a substantial contribution from non-operating, one-off items.
Quarterly data reveal pronounced seasonality. In the summer-season quarters of 2025 Q2 and Q3, revenue fell to KRW 214.3 billion and KRW 164.8 billion respectively, and operating profit turned to a loss of KRW 8.3 billion in Q3 after a near-breakeven KRW 0.17 billion in Q2.
Performance then improved sharply as heating demand returned, with 2025 Q4 revenue of KRW 349.0 billion and operating profit of KRW 6.7 billion, followed by a strong 2026 Q1 with revenue of KRW 459.3 billion and operating profit of KRW 27.9 billion, before easing again in 2026 Q2 to revenue of KRW 203.3 billion and operating profit of KRW 2.7 billion.
Over the trailing four quarters from 2025 Q3 through 2026 Q2, net income attributable to owners totaled roughly KRW 24.8 billion, with the single winter-peak quarter of 2026 Q1 (KRW 18.0 billion) accounting for the majority of that figure.
This pattern underscores how closely the city gas business is tied to seasonal demand and the government-set tariff structure.