Electricity, gas and steam
12 companies listed in Korea file under this classification. Figures below are each company's most recent filed year, mostly 2025.
Companies12
Combined revenueKRW 151,844bn
Median revenueKRW 1,794bn
Largest company's share64.2%
We show the median rather than the average because one company often carries a whole classification. The largest firm's share of combined revenue is there so you can see when that is happening.
All companies, by name
Listed alphabetically, not ranked. We do not order companies by size or call any of them leading, major or top.
| Company | Market | Year | Revenue | Operating profit | Net profit |
|---|---|---|---|---|---|
| Agent AI Co.,Ltd.060900 | KOSDAQ | 2025 | 13 | -9 | -19 |
| DAESUNG ENERGY CO.,LTD117580 | KOSPI | 2025 | 1,018 | 30 | 25 |
| GSE Co., Ltd.053050 | KOSDAQ | 2025 | 170 | 7 | 4 |
| HANJIN HEAVY IND. & CONST. HOLDINGS CO., LTD003480 | KOSPI | 2025 | 1,202 | 73 | 63 |
| INCHON CITY GAS034590 | KOSPI | 2025 | 963 | 19 | 19 |
| KOREA DISTRICT HEATING CORPORATION071320 | KOSPI | 2025 | 3,998 | 530 | 339 |
| KOREA ELECTRIC POWER CORPORATION015760 | KOSPI | 2025 | 97,429 | 13,491 | 8,667 |
| KoreaGasCorporation036460 | KOSPI | 2025 | 35,727 | 2,101 | 132 |
| KYUNGDONG CITY GAS CO.,LTD267290 | KOSPI | 2025 | 1,759 | 33 | 33 |
| SAMCHULLY CO.,LTD004690 | KOSPI | 2025 | 5,275 | 160 | 131 |
| SEOUL CITY GAS CO.,LTD017390 | KOSPI | 2025 | 1,828 | 17 | 31 |
| SGC Energy Co.,Ltd.005090 | KOSPI | 2025 | 2,461 | 96 | -95 |