| APAdhesive Polymers Plant | Freeport | TX | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| ALAir Liquide - Freeport Hyco Plant | Freeport | TX | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| BCBasf CORP - Freeport Site | Freeport | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| FPFreeport Plant | Freeport | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| NCNalco Champion | Freeport | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| OBOlin Blue Cube | Freeport | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| SIShintech INC | Freeport | TX | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| SGSi Group INC Tx Operations | Freeport | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
Braskem America | Freeport | TX | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| SSShinetsu Silicones of America - Freeport Plant | Freeport | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| ALAir Liquide Freeport Asu | Freeport | TX | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| ACArrow Chemical CORP | Freeport | NY | Chemical Manufacturing325611 | — | ◐ LIKELY ACTIVE |
| FTFreeport Terminals | Freeport | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| HEHuntsman Ethyleneamines | Freeport | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| OCOyster Creek Unit Viii | Freeport | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| SPSk Primacor Americas | Freeport | TX | Chemical Manufacturing325199 | — | ◐ LIKELY ACTIVE |
| ALAir Liquide Large Industries U.s. Lp-freeport Hpu | Freeport | TX | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| BCBlue Cube Freeport Operations | Freeport | TX | Chemical Manufacturing325180 | 500+ | ◐ LIKELY ACTIVE |
| CMChemical Manufacturing | Freeport | TX | Chemical Manufacturing325199 | 500+ | ◐ LIKELY ACTIVE |
| MAMEGlobal Americas Inc. | Freeport | TX | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |
| VFVencorex Freeport Site | Freeport | TX | Chemical Manufacturing325199 | 20-99 | ◐ LIKELY ACTIVE |