5 non-ferrous metals plants in Switzerland, ranked by reported capacity and CO₂ — from open data.
| # | Facility | unitless | t CO₂e/yr |
|---|---|---|---|
| 1 | Constellium Valais SA | 1 | 13,900 |
| 2 | Constellium Valais SA | 1 | 6,110 |
| 3 | vonRoll casting (rondez) sa | 1 | 1,776 |
| 4 | vR production (choindez) sa | 1 | 64 |
| 5 | DGS Druckguss Systeme AG | 1 | 3 |
Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).