# Shintech to invest $3.4B in ethylene and VCM plants in Louisiana

Shintech Inc., a U.S. subsidiary of Shin-Etsu Chemical, will invest $3.4 billion to build a second ethylene unit and fourth chlor-alkali/VCM plant at its Plaquemine, Louisiana site, adding annual capacities of 625,000 tons ethylene, 500,000 tons VCM, and 310,000 tons caustic soda.

- Type: Investment
- Announced: 2026-03-05
- Where: Plaquemine, Louisiana, United States
- Value: $3.40B
- Starts operating: 2030
- Status: announced
- Capacity: ethylene 625,000 tons/year, VCM 500,000 tons/year, caustic soda 310,000 tons/year
- Products: ethylene, vinyl chloride monomer, caustic soda, 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) (investor)

## Sources

- [shinetsu.co.jp](https://www.shinetsu.co.jp/jp/news/news-release/%E7%B1%B3%E5%9B%BD%E3%82%B7%E3%83%B3%E3%83%86%E3%83%83%E3%82%AF%E7%A4%BE%EF%BC%9A%E5%A1%A9%E5%8C%96%E3%83%93%E3%83%8B%E3%83%AB%E3%81%A8%E8%8B%9B%E6%80%A7%E3%82%BD%E3%83%BC%E3%83%80%E4%BA%8B%E6%A5%AD/), 2026-03-05: "The amount of the investment is expected to be $3.4 billion. The completion of the construction is slated toward the end of 2030."
- [shinetsu.co.jp](https://www.shinetsu.co.jp/en/news/news-release/shintech-announces-capital-investment-of-3-4-billion-to-bolster-pvc-and-caustic-soda-business/), 2026-03-05: "The amount of the investment is expected to be $3.4 billion. The completion of the construction is slated toward the end of 2030."

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