# Shintech to invest $3.4 billion in Louisiana vinyl chemicals expansion

Shintech plans to spend $3.4 billion to expand chlor-alkali, ethylene, and vinyl chloride monomer capacity at its Plaquemine, Louisiana site. The project includes a new ethylene cracker (625,000 t/yr), VCM plant (500,000 t/yr), and chlor-alkali unit (310,000 t caustic soda, 280,000 t chlorine). Completion expected by end of 2030.

- Type: Investment
- Announced: 2025-01-21
- Where: Plaquemine, Louisiana, United States
- Value: $3.40B
- Starts operating: 2030
- Status: announced
- Capacity: 625,000 t/yr ethylene, 500,000 t/yr VCM, 310,000 t/yr caustic soda, 280,000 t/yr chlorine
- Products: ethylene, vinyl chloride monomer, chlor-alkali, polyvinyl chloride
- Sectors: [Specialty Chemicals](https://endata.com/sectors/specialty-chemicals.md), [Plastics and Polymers](https://endata.com/sectors/plastics-polymers.md)

## Companies

- [Shintech](https://endata.com/companies/15767.md)
- [Shin-Etsu Chemical](https://endata.com/companies/25085.md) (partner)

## Sources

- [cen.acs.org](https://cen.acs.org/business/petrochemicals/Shintech-invest-34-billion-US/104/web/2026/03), 2025-01-21: "Shintech, the US arm of Japan’s Shin-Etsu Chemical, plans to spend $3.4 billion to expand chlor-alkali, ethylene, and vinyl chloride monomer (VCM) capacity at its site in Plaquemine, Louisiana."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.