Sulphur dioxide emissions from India's top copper smelter were within limits during an inspection by a court panel, according to a report seen by Reuters, which could help lead to a ruling in favour of reopening the plant.
The Sterlite Industries' plant, which produces 30,000 tonnes of refined copper a month - or more than half of India's total production, was shut on March 30 after complaints about emissions. The shutdown is squeezing local supplies of refined copper and boosting prices in India.
National Green Tribunal, a fast-track court hearing the case, had set up an expert committee to measure emissions and examine the working condition of machinery, among other things.
"The emissions from all the stacks were well within the permissible limit prescribed by the Central Pollution Control Board when the plant was in normal operation," said the report by P.S.T. Sai and Ligy Philip.