| Site | Address | Phone |
| Bayport | Rohm and Haas Chemcials LLC* Bayport Plant 13300 Bay Area Boulevard La Porte, TX 77571 USA |
Phone: 281-474-4495 Fax: 281-474-8580 ISO 9000 |
| Deer Park | Rohm and Haas Chemicals LLC* Rohm and Haas Company Primary Materials Engineering 6519 State Highway 225 Deer Park, TX 77536 USA |
Phone: 281-228-2800 Fax: 281-228-8689 |
| Deer Park (Houston Plant) | Rohm and Haas Texas Incorporated* 1900 Tidal Road Deer Park, TX 77536 USA |
Phone: 281-228-8100 Fax: 281-228-2802 ISO 14001 OSHA VPP |
| Deer Park (Lone Star Plant) | Rohm and Haas Chemicals LLC* Lone Star Plant 1800 Tidal Road Deer Park, TX 77536 USA |
Phone: 713-767–1600 Fax: 713-767-1690 ISO 9002 |
| Freeport (Texas Operations) | Dow Texas Operations 2301 Brazosport Blvd. APB Building Freeport, TX 77541 USA |
Phone: (979) 238-2011 Fax: (979) 238-3689 |
| Houston Dow Center | 1254 Enclave Parkway Houston, TX 77077-1607 USA |
Tel. (281)966-2000 Fax. (281)966-2953 |
| Houston (Corporate Center) - Union Carbide | Union Carbide Corporation A Subsidiary of The Dow Chemical Company 1254 Enclave Parkway Houston, TX 77077 USA |
Tel. 281-966-2016 Fax 281-966-2394 |
| Houston (Memorial Plaza) - Union Carbide | Union Carbide Corporation A Subsidiary of The Dow Chemical Company Two Memorial City Plaza 820 Gessner Road, Suite 600 Houston, Texas 77024-4258 USA |
Tel. 1 713 973 5600 / 5677 Fax 1 713 984 3393 |
| Houston (Pennbright) - Union Carbide | Union Carbide Corporation A Subsidiary of The Dow Chemical Company 335 Pennbright Drive, Suite 120 Houston, Texas 77090 USA |
Tel. 1 281 872 4131 Fax 1 281 872 1859 |
| Houston (Westhollow) - Union Carbide | Union Carbide Corporation A Subsidiary of The Dow Chemical Company Westhollow Technology Center 3333 Highway 6 South Houston, Texas 77082 USA |
Tel. 1 281 560 1601 Fax 1 281 560 1670 |
| Houston (York Center) - Union Carbide | Union Carbide Corporation A Subsidiary of The Dow Chemical Company York Centre 10235 West Little York Road Suite 300 Houston, Texas 77040 USA |
Tel. 1 713 849 7000 Fax 1 713 849 7021 |
| La Porte (Houston Operations) | Houston Operations 550 Battleground Road La Porte, Texas 77571 USA |
Phone: (713) 246-0369 |
| Pasadena (Clear Lake Operations) | Clear Lake Operations 9502B Bayport Blvd. Pasadena, Texas 77507 USA |
Tel. 1 713 751 7285 Fax 1 713 751 7284 |
| Seadrift - Union Carbide | Union Carbide Corporation A Subsidiary of The Dow Chemical Company Highway 185 North Seadrift, Texas 77983 PO Box 186 Port Lavaca, Texas 77979 USA |
Tel. 1 361 553 2000 Fax. 1 361 553 3464 |
| Texas City - Union Carbide | Texas City Operations P.O. Box 471 Texas City, TX 77592-0471 |
Phone: (409) 945-7411 |
*Rohm and Haas is a Wholly Owned Subsidiary of The Dow Chemical Company