| # | Facility | Type | Country | t CO₂e/yr |
|---|---|---|---|---|
| 1 | Worsley Alumina Refinery | Aluminium Smelter | Australia | 6,165,225 |
| 2 | Pinjarra Alcoa Alumina Refinery | Aluminium Smelter | Australia | 5,593,000 |
| 3 | BlueScope Port Kembla steel plant | Steel Plant | Australia | 4,793,517 |
| 4 | Yarwun Alumina Refinery | Aluminium Smelter | Australia | 4,459,950 |
| 5 | Wagerup Alumina Refinery | Aluminium Smelter | Australia | 3,804,075 |
| 6 | Kwinana Alumina Refinery | Aluminium Smelter | Australia | 2,885,850 |
| 7 | Gladstone Region | Aluminium Smelter | Australia | 2,076,521 |
| 8 | GFG Liberty Steel Australia Whyalla steel plant | Steel Plant | Australia | 1,536,042 |
| 9 | Viva Geelong Refinery | Refinery | Australia | 1,460,991 |
| 10 | Murray Shire | Aluminium Smelter | Australia | 1,452,112 |
| 11 | Tomago aluminium plant | Aluminium Smelter | Australia | 1,286,441 |
| 12 | Collie Shire | Aluminium Smelter | Australia | 1,277,859 |
| 13 | Ampol Lytton Refinery | Refinery | Australia | 1,236,766 |
| 14 | Bunbury City | Aluminium Smelter | Australia | 1,103,605 |
| 15 | Boyne Island aluminium plant | Aluminium Smelter | Australia | 1,072,034 |
| 16 | Waroona Shire | Aluminium Smelter | Australia | 813,183 |
| 17 | Railton Cement Plant | Cement Plant | Australia | 801,023 |
| 18 | Kwinana Town | Aluminium Smelter | Australia | 580,845 |
| 19 | Portland aluminium plant | Aluminium Smelter | Australia | 574,610 |
| 20 | Birkenhead Cement Plant | Cement Plant | Australia | 552,941 |
| 21 | Bell Bay aluminium plant | Aluminium Smelter | Australia | 411,661 |
| 22 | Gladstone Cement Plant | Cement Plant | Australia | 362,639 |
| 23 | New Berrima Cement Plant | Cement Plant | Australia | 292,619 |
| 24 | Graymont Ltd. Green Bay Brown | Lime Plant | Australia | 220,597 |
| 25 | Angaston Cement Plant | Cement Plant | Australia | 122,973 |
| 26 | Australia | Chemical Plant | Australia | 115,376 |
| 27 | Qenos Pty. Ltd., Altona ,Victoria | Petrochemical | Australia | 106,915 |
| 28 | Opal Australian Paper - Maryvale Mill | Pulp & Paper Mill | Australia | 74,484 |
| 29 | GFG Liberty Laverton Steel Mill | Steel Plant | Australia | 48,490 |
| 30 | GFG Liberty Sydney Steel Mill | Steel Plant | Australia | 46,625 |
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.
