- Sterlite Copper is a copper smelting unit and is a subsidiary of the London-based Vedanta Group. Sterlite produces non-ferrous metals like copper, aluminium and zinc, along with chemicals such as sulphuric acid and phosporic acid.
- The plant in Thoothukudi is one of two copper plants in the country, the other one being in Silvassa, Daman & Diu.
- In 2011, the Supreme Court ordered the National Environmental Engineering Research Institute(NEERI) to inspect the copper smelting plant and submit a report.
- The study found high levels of copper, lead, cadmium and fluoride in the groundwater in the area.