Thirumalai Chemicals Ltd.
- Manufacturing plant for pthalic and maleic anhydride, and fumaric acid. Supplier to pharmaceutical and epoxy industries.
- http://www.thirumalaichemicals.com/index.htm

Snap Natural and Alginate Products
- Manufacturer of salts of alginic acid used in the pharmaceutical, textile, and food industries.
- http://www.snapalginate.com