Hindustan Zinc, a unit of Sterlite Industries, today announced that its exploration activities have yielded an increase of 46.3 million tonnes of metals in its reserves and resources as against depletion of 6.7 million tonnes in 2009 financial year.
Total reserves and resources stood at 272 million tonnes as on March 31, 2009, of that 31.5 million tonnes constituted zinc-lead metal, the company said in a statement to BSE today.
The company's stock was trading at Rs 571.75, nearly 8.11 per cent higher than Wednesday's close.