| Facility | Type | Country | t CO₂e/yr |
|---|---|---|---|
| Petronas Chemicals Ethylene, Sdn. Bhd. Kertih | Petrochemical | Malaysia | 2,132,943 |
| Malaysian Refining Company Melaka II Refinery | Refinery | Malaysia | 1,479,426 |
| Petronas Penapisan Terengganu Refinery | Refinery | Malaysia | 1,079,111 |
| Malaysian Refining Company Melaka I Refinery | Refinery | Malaysia | 408,283 |
Ownership, capacity & CO₂: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).