| # | Facility | Type | Country | t CO₂e/yr |
|---|---|---|---|---|
| 1 | GFG Liberty Galati steel plant | Steel Plant | Romania | 3,881,295 |
| 2 | Rompetrol Petromidia Refinery | Refinery | Romania | 1,226,712 |
| 3 | OMV Petrobrazi Ploiesti Refinery | Refinery | Romania | 1,120,716 |
| 4 | Chistag Cement Plant | Cement Plant | Romania | 1,023,198 |
| 5 | Bicaz Cement Plant | Cement Plant | Romania | 924,164 |
| 6 | Medgidia Cement Plant | Cement Plant | Romania | 758,870 |
| 7 | Petrotel Lukoil Ploiesti Refinery | Refinery | Romania | 703,706 |
| 8 | Tulcea Alumina Refinery | Aluminium Smelter | Romania | 697,580 |
| 9 | Fieni Cement Plant | Cement Plant | Romania | 608,301 |
| 10 | Chiscadaga Cement Plant | Cement Plant | Romania | 594,329 |
| 11 | Sc Agrana Romania Sa | Food & Beverage | Romania | 483,759 |
| 12 | Tereos Romania Sa- Zaharul Ludus | Food & Beverage | Romania | 483,759 |
| 13 | Hoghiz Cement Plant | Cement Plant | Romania | 427,645 |
| 14 | SC ALRO SA SLATINA - Sediu primar | Metals Plant | Romania | 398,000 |
| 15 | Valea Mare Pravat Cement Plant | Cement Plant | Romania | 325,341 |
| 16 | Sc Carmeuse Holding Srl | Lime Plant | Romania | 167,667 |
| 17 | Sc Carmeuse Holding Srl | Lime Plant | Romania | 150,496 |
| 18 | Slatina aluminium plant | Aluminium Smelter | Romania | 141,055 |
| 19 | ROU-Ucea De Jos_methanol | Chemical Plant | Romania | 83,408 |
| 20 | Azomures Targu Mures Fertilizers | Chemical Plant | Romania | 75,240 |
| 21 | Rompetrol Vega Ploiesti Refinery | Refinery | Romania | 48,586 |
| 22 | ArcelorMittal Hunedoara steel plant | Steel Plant | Romania | 41,259 |
| 23 | Tulcea Commune | Aluminium Smelter | Romania | 36,222 |
| 24 | Donalam Targoviste plant | Steel Plant | Romania | 35,855 |
| 25 | Tenaris Silcotub Calarasi steel mill | Steel Plant | Romania | 27,592 |
| 26 | GLGH Resita steel plant | Steel Plant | Romania | 17,662 |
Method: ranked from open data — capacity and CO₂e from Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0). Sorted server-side; company-level data only.