Chemical manufacturers in Louisiana
Louisiana has 349 chemical makers in EPA records, facilities that list codes for basic, organic and specialty chemicals, resins and rubber. The most are in Baton Rouge, Geismar and Westlake. That is 4% of the 8,779 such facilities nationwide, and Louisiana ranks #6 of 51 states.
- Product
- Chemical manufacturers
- Facilities
- 349
- State rank
- #6
- NAICS
- 325110 and 15 related codes
- Revised
- November 1, 2026
Facilities in Louisiana
These are active facilities in EPA's ECHO database that list a code for basic, organic and specialty chemicals, resins and rubber. The 40 shown first are the ones with the most EPA program records, which usually means the larger sites.
| Facility | City | What EPA lists |
|---|---|---|
| BASF Corp - Geismar Site | Geismar | Petrochemical Manufacturing |
| Cornerstone Chemical Co LLC | Waggaman | Other Basic Inorganic Chemical Manufacturing |
| Formosa Plastics Louisiana | Baton Rouge | Plastics Material and Resin Manufacturing |
| Advancion Corporation - Sterlington Plant | Sterlington | All Other Basic Organic Chemical Manufacturing |
| Bayer Cropscience LP - Luling Site | Luling | Other Basic Inorganic Chemical Manufacturing |
| Honeywell International Inc - Geismar Complex | Geismar | Industrial Gas Manufacturing |
| CF Industries - Donaldsonville Nitrogen Complex | Donaldsonville | Other Basic Inorganic Chemical Manufacturing |
| Exxonmobil Chemical Polyolefins Plant | Baton Rouge | Plastics Material and Resin Manufacturing |
| Ada Carbon Solutions (Red River), LLC | Coushatta | All Other Miscellaneous Chemical Product and Preparation Manufacturing |
| Americas Styrenics LLC - St James Plant | St. James | Petrochemical Manufacturing |
| Cabot Corp - Ville Platte Plant | Ville Platte | Other Basic Inorganic Chemical Manufacturing |
| Columbian Chemicals Company (North Bend Carbon Black Plant) | Centerville | Other Basic Inorganic Chemical Manufacturing |
| Ingevity South Carolina, LLC | Deridder | Ethyl Alcohol Manufacturing |
| Flopam Inc - Flopam Facility | Plaquemine | All Other Basic Organic Chemical Manufacturing |
| Dyno Nobel Louisiana Ammonia, LLC | Waggaman | All Other Basic Organic Chemical Manufacturing |
| Denka Performance Elastomer LLC | Laplace | Petrochemical Manufacturing |
| The Dow Chemical Co - Louisiana Operations | Plaquemine | Petrochemical Manufacturing |
| Lotte Chemical Louisiana LLC | Westlake | Petrochemical Manufacturing |
| Rubicon LLC - Geismar Facility | Geismar | Ethyl Alcohol Manufacturing |
| Union Carbide Corp - St Charles Plant | Hahnville | Petrochemical Manufacturing |
| Eco Services Baton Rouge Site | Baton Rouge | Other Basic Inorganic Chemical Manufacturing |
| Lake Charles Chemical Complex | Westlake | Petrochemical Manufacturing |
| Occidental Chemical Corporation - Geismar Facility | Geismar | Other Basic Inorganic Chemical Manufacturing |
| Oak Point Plant | Belle Chasse | Petrochemical Manufacturing |
| Syngenta Crop Protection, LLC. - St Gabriel Plant | Saint Gabriel | Other Basic Inorganic Chemical Manufacturing |
| Norco Manufacturing Complex & Associated Facilities | Norco | Petrochemical Manufacturing |
| Shintech Plaquemine Plant | Plaquemine | Other Basic Inorganic Chemical Manufacturing |
| Tsrc Specialty Materials LLC - Research & Development Pilot Plant | Plaquemine | All Other Basic Organic Chemical Manufacturing |
| Westlake Petrochemicals LLC | Sulphur | Petrochemical Manufacturing |
| International-Matex Tank Terminals (St. Rose) | St Rose | Petrochemical Manufacturing |
| Koch Methanol St James LLC - Koch Methanol Facility | St. James | All Other Basic Organic Chemical Manufacturing |
| Lyondell Lake Charles Plant | Westlake | Other Basic Inorganic Chemical Manufacturing |
| Norco Chemical Plant - West Site | Norco | Petrochemical Manufacturing |
| Nova Chemicals Olefins LLC - Geismar Ethylene Plant | Geismar | Petrochemical Manufacturing |
| Pq Corporation - Pineville Plant | Pineville | Other Basic Inorganic Chemical Manufacturing |
| Trecora Monomers LLC | Baton Rouge | Petrochemical Manufacturing |
| Westlake Chemicals & Vinyls LLC - Plaquemine Facility | Plaquemine | Petrochemical Manufacturing |
| Westlake Vinyls Co LP - Geismar Facility | Geismar | Petrochemical Manufacturing |
| Air Products & Chemicals Inc (New Orleans La Facility) | New Orleans | Industrial Gas Manufacturing |
| Cabot Corporation - Canal Plant | Franklin | Other Basic Inorganic Chemical Manufacturing |
Industry codes are reported by facilities to EPA programs and are not checked here. A few listings may be repair shops, distributors or recyclers. How these records work.
Where they are
- Baton Rouge: 37
- Geismar: 27
- Westlake: 27
- Sulphur: 16
- Plaquemine: 13
- Norco: 10
By product code
- Petrochemical Manufacturing (NAICS 325110): 16 of those shown
- Other Basic Inorganic Chemical Manufacturing (NAICS 325180): 12 of those shown
- All Other Basic Organic Chemical Manufacturing (NAICS 325199): 5 of those shown
- Industrial Gas Manufacturing (NAICS 325120): 2 of those shown
- Ethyl Alcohol Manufacturing (NAICS 325193): 2 of those shown
- Plastics Material and Resin Manufacturing (NAICS 325211): 2 of those shown
- All Other Miscellaneous Chemical Product and Preparation Manufacturing (NAICS 325998): 1 of those shown
All chemicals manufacturing in Louisiana: 472 facilities and Census job counts.