Chemical Manufacturing in Louisiana

NAICS 325 · LA

The Chemical Manufacturing industry in Louisiana has 428 establishments, according to the Bureau of Labor Statistics. This register lists 544 facilities in Louisiana. Dow, Inc. Plaquemine Operations, located in Plaquemine, employed 1,414 people in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Plants in Louisiana28 FACILITIES

Listing 28 of 38: the facilities with a website, a size band or two sources on record. The rest are in site search.

Facility	City	Employees	Status
SPShintech Plaquemine Plant	Plaquemine	500+	● ACTIVE
Mexichem Fluor INC.	Saint Gabriel	—	● ACTIVE
Mexichem Fluor INC.	Saint Gabriel	—	◐ LIKELY ACTIVE
Syngenta Crop Protection, LLC. - St Gabriel Plant	Saint Gabriel	—	◐ LIKELY ACTIVE
TETaminco Eastman US - St Gabriel Plant	Saint Gabriel	—	◐ LIKELY ACTIVE
TUTaminco US LLC	Saint Gabriel	100–499	◐ LIKELY ACTIVE
TDThe Dow Chemical CO - Louisiana Operations	Plaquemine	—	◐ LIKELY ACTIVE
TPTotalenergies Petrochemicals & Refining Usa, INC. - Carville Polystyrene Plant	Carville	—	◐ LIKELY ACTIVE
TPTotalenergies Petrochemicals & Refining USA INC - Cos-mar Styrene Monomer Plant	Carville	—	◐ LIKELY ACTIVE
TSTsrc Specialty Materials LLC - Research & Development Pilot Plant	Plaquemine	—	◐ LIKELY ACTIVE
WCWestlake Chemicals & Vinyls LLC - Plaquemine Facility	Plaquemine	—	◐ LIKELY ACTIVE
FIFlopam INC - Flopam Facility	Plaquemine	—	◐ LIKELY ACTIVE
IOIneos Oxide - a Division of Ineos Americas LLC	Plaquemine	—	◐ LIKELY ACTIVE
PSPerformanx Specialty Chemicals - St. Gabriel Operations	St. Gabriel	—	◐ LIKELY ACTIVE
PAPioneer Americas LLC D/b/a/ Olin Chlor Alkali	St. Gabriel	—	◐ LIKELY ACTIVE
STSe Tylose USA INC. and Its Affiliates	Plaquemine	—	◐ LIKELY ACTIVE
ALAir Liquide Large Industries - Plaquemine ASU	Plaquemine	20–99	◐ LIKELY ACTIVE
WCWestlake Chemicals and Vinyls, LLC	Plaquemine	100–499	◐ LIKELY ACTIVE
NBNutrition & Biosciences USA 1 LLC - Plaquemine Methocel	Plaquemine	—	◐ LIKELY ACTIVE
BSBrenntag Southwest, INC. St. Gabriel Bleach Plant	St. Gabriel	—	◇ UNVERIFIED
COClearwater of Le Firm Part 2, LLC	Lake Charles	—	◇ UNVERIFIED
PCPolyone CORP	Plaquemine	—	◇ UNVERIFIED
TBTexas Brine	White Castle	—	◇ UNVERIFIED
ZIZeneca INC.	St. Gabriel	—	◇ UNVERIFIED
MFMexichem Fluor St. Gabriel (KLEA) Site	St. Gabriel	20–99	◐ LIKELY ACTIVE
OCOlin Corporation	Saint Gabriel	100–499	◐ LIKELY ACTIVE
PPPlug Power - Saint Gabriel La PLant	Saint Gabriel	1–19	◐ LIKELY ACTIVE
SGSt. Gabriel Site	St. Gabriel	100–499	◐ LIKELY ACTIVE

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