The cluster of chemical plants around Geismar in Ascension Parish, Louisiana, on the Mississippi between Baton Rouge and New Orleans. Plants here make MDI and aniline (BASF, Huntsman, Rubicon), ethylene oxide and alpha olefins (Shell, BASF), PVC and chlor-alkali (Westlake), ethylene (NOVA), methanol (Methanex), ammonia (Nutrien), fluorochemicals (Honeywell) and renewable diesel, with hydrogen and syngas from Air Products and Linde.
Projects at Geismar
chemXplore tracks 4 projects at Geismar, of which one is active.
–noneAnnounced / Concept
–noneFEED / Pre-FID
–noneFID / Sanctioned
–noneUnder Construction
1 projectCommissioning & Start-up
Of the active ones,
1 expansion.
What moved recently
September 2026
BASF Geismar MDI capacity expansion
· Commissioning & Start-up
·
United States
