Hindustan Zinc Limited, a Vedanta Group Company, is the market leader in Zinc, Lead and Sulphuric Acid business. The Company is engaged in exploring, extracting, processing of minerals and manufacturing of metals. HZL's operations include 5 zinc-lead mines, 4 zinc smelters, 1 lead smelter, 1 zinclead smelter, 8 sulphuric acid plants, 1 silver refinery plant, 6 captive thermal power plants and 4 captive solar plants in the State of Rajasthan. In addition, it operate a rock-phosphate mine in Matoon, near Udaipur in Rajasthan and zinc, lead, silver processing and refining facilities in the State of Uttarakhand. It has Wind Power Plants in the States of Rajasthan, Gujarat, Karnataka, Tamil Nadu and Maharashtra and Solar Power Plants in the State of Rajasthan.