| Company | Region | Location | Material | Capacity kt | Expansions planned kt |
| Enichem Polimeri | Europe | Qatar | TDI | (100) | Project shelved 2000 |
| Lyondell Petrochemical Co | Americas | Lake Charles, LA | TDI | 113 | |
| BASF Group | Americas | Geismar, Louisiana | TDI | 120 | 160 on-stream 2002 |
| BASF Group | Asia-Pacific | Caojing, PR China | TDI | (100) | By 2001 JV with Chinese firms |
| BASF Group | Europe | Schwarzheide, Germany | TDI | 70 | |
| Bayer AG | Europe | Brunnsbüttel, Germany | TDI | 55 | |
| Bayer AG | Europe | Dormagen, Germany | TDI | 45 | |
| Bayer AG | Europe | Leverkusen, Germany | TDI | 36 | |
| Bayer AG | Europe | Tarragona, Spain | TDI | 18 | |
| Bayer Shell Isocyanates | Europe | Antwerp, Belgium | TDI | 30 | 50/50 JV, but all TDI marketed by Shell |
| Bayer Corp | Americas | Baytown, Texas | TDI | 60 | |
| Bayer Corp | Americas | New Martinsville, WV | TDI | 45 | |
| Sumitomo Bayer Urethane Co. | Asia-Pacific | Shin Nanyo, Japan | TDI | 13 | |
| Cydsa Bayer | Americas | Coatzacoalcos, Mexico | TDI | 16 | |
| Dow Chemical | Americas | Freeport, Texas | TDI | 60 | |
| Dow Chemical | Americas | Camarçari, Brazil | TDI | 60 | Acquired from Pronor |
| EniChem Polimeri | Europe | Porto Marghera, Italy | TDI | 110 | |
| Gujurat/Chematur | Asia-Pacific | Bharuch, India | TDI | 10 | |
| Hindustan Organic | Asia-Pacific | Raigad, India | TDI | 10 | |
| Huntsman Polyurethanes | Americas | Geismar, Louisiana | TDI | 25 | |
| Korea Fine Chem | Asia-Pacific | Kunsan, Korea | TDI | 45 | |
| Mitsui Toatsu | Asia-Pacific | Omuta, Japan | TDI | 93 | |
| Mitsui Toatsu | Asia-Pacific | Omuta, Japan | TDI | 35 | |
| Nippon Polyurethane Industries Co Ltd | Asia-Pacific | Tokuyama, Japan | TDI | 7 | |
| Nippon Polyurethane Industries Co Ltd | Asia-Pacific | Omuta, Japan | TDI | 15 | |
| Olin Corp | Americas | Lake Charles, Louisiana | TDI | 100 | |
| Oriental Chemical Industries | Asia-Pacific | Kunsan, Korea | TDI | 32 | |
| Petrochemical Rio Tercero | Americas | Cordoba, Argentina | TDI | 21 | |
| Rhodia | Europe | Pont de Claix, France | TDI | 70 | Products marketed by Lyondell Petrochemical Co. |
| Rhodia | Europe | Lille, France | TDI | 50 | Products marketed by Lyondell Petrochemical Co. |
| Sodaso | Europe | Tuzla, Bosnia | TDI | (40) | Shutdown |
| Takeda Chemical Ind | Asia-Pacific | Niihama, Japan | TDI | 30 | |
| Wusong Chemical | Asia-Pacific | Shanghai, China | TDI | 10 |