16 steel plants in South Korea, ranked by listed capacity and estimated CO₂ — from open data.
| # | Facility | t of steel | t CO₂e/yr |
|---|---|---|---|
| 1 | POSCO Gwangyang steel plant | 22,999,000 | 34,799,208 |
| 2 | POSCO Pohang steel plant | 17,551,820 | 24,457,044 |
| 3 | Hyundai Steel Dangjin steel plant | 16,200,000 | 20,049,392 |
| 4 | Hyundai Steel Incheon steel plant | 4,697,000 | 276,367 |
| 5 | Hyundai Steel Pohang steel plant | 3,400,000 | 200,053 |
| 6 | KISCO steel Changwon plant | — | 176,517 |
| 7 | Dongkuk Steel Incheon steel plant | — | 129,446 |
| 8 | SeAH Besteel Gunsan steel plant | 2,101,000 | 123,621 |
| 9 | KG Steel Dangjin steel plant | 1,491,803 | 638,221 |
| 10 | Dongkuk Steel Pohang steel plant | — | 82,375 |
| 11 | SeAH Changwon Integrated Special Steel plant | — | 70,607 |
| 12 | SeAH Steel Pohang plant | — | 238,892 |
| 13 | KG Steel Incheon steel plant | — | 199,077 |
| 14 | DaehanSteel Noksan Steel Plant | — | 58,839 |
| 15 | YK Steel Busan plant | 930,000 | 54,720 |
| 16 | Hansco Hwanyoung Steel Dangjin plant | — | 47,071 |
Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).
