| # | Facility | unitless | t CO₂e/yr |
|---|---|---|---|
| 1 | Baymag Exshaw Operations | — | 173,462 |
| 2 | ROXUL Inc. | — | 87,162 |
| 3 | CGC Hagersville Plant | — | 79,360 |
| 4 | Brampton Brick Limited | — | 70,941 |
| 5 | Brampton Brick | — | 60,955 |
| 6 | Atlantic Wallboard | — | 45,495 |
| 7 | Atlantic Wallboard LP | — | 39,235 |
| 8 | Montreal Plant (024) | — | 37,187 |
| 9 | Meridian Brick - Aldershot | — | 36,765 |
| 10 | Toronto Board Plant | — | 35,557 |
| 11 | Montreal Wallboard/Finishing Plant | — | 32,737 |
| 12 | Calgary Wallboard Plant | — | 27,508 |
| 13 | Vancouver Wallboard Plant | — | 24,580 |
| 14 | Meridian Brick - Burlington | — | 21,726 |
| 15 | Meridian Brick - Burlington | — | 21,693 |
| 16 | Usine de PCC de Windsor | — | 18,943 |
| 17 | Edmonton Plant | — | 18,605 |
| 18 | Winnipeg Wallboard Plant | — | 17,326 |
| 19 | Toronto Plant | — | 16,788 |
| 20 | Meridian Brick - Aldershot | — | 15,469 |
| 21 | McAdam Wallboard Plant | — | 7,261 |
Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).