Hindustan Zinc Ltd, a Vedanta Group company, is the market leader in zinc, lead and sulphuric acid business. The company is India's only and the world's largest integrated producer of Zinc-Lead. They are also one of the leading Silver producers in the world. They are one of the lowest cost producers in the world and are well placed to serve the growing demand of Asian countries. Hindustan Zinc is a subsidiary of the Sterlite Industries (India) Ltd and Vedanta Resources plc.
The company's core business comprises of mining and smelting of zinc and lead along with captive power generation. They have four mines and four smelting operations. Their mines are situated at Rampura Agucha (largest zinc producing mine in the world), Sindesar Khurd, Rajpura Dariba and Zawar in the State of Rajasthan; while the smelters are located at Chanderiya, Debari and Dariba in the State of Rajasthan and Vizag in the State of Andhra Pradesh.
The company's current metal production capacity is 1,064,000 tonnes per annum (879,000 tonnes of zinc and 185,000 tonnes of lead). With reserves and resources of 313.2 million tonnes, their exploration programme is integral to their growth and future expansions. The company also owns 474 MW of coal based thermal captive power plants in Rajasthan to support their metallurgical operations. They also have 123.2 MW of wind energy in Gujarat and Karnataka, which is sold to the respective State grids.
Hindustan Zinc Ltd was incorporated from the erstwhile Metal Corporation of India on January 10, 1966 as a Public Sector Undertaking. In April 2002, Sterlite Opportunities and Ventures Ltd (SOVL) made an open offer for acquisition of shares of the company; consequent to the disinvestment of Government of India's (GOI) stake of 26% including management control to SOVL and acquired additional 20% of shares from public, pursuant to the SEBI Regulations 1997. In August 2003, SOVL acquired additional shares to the extent of 18.92% of the paid up capital from GOI in exercise of 'call option' clause in the share holder's agreement between GOI and SOVL. With the above additional acquisition, SOVL's stake in the company has gone up to 64.92%. Thus GOI's stake in the company now stands at 29.54%.
During the year 2002-03, the company completed 32,000 tonnes of zinc debottlenecking at Debari Zinc Smelter and ViZag Zinc Smelter. Also, they completed the debottlenecking of Rampura Agucha Mine from 1.37 million tonnes per annum to 2.30 million tonnes per annum.During the year 2003-04, the company completed the 35,000 tonnes of zinc debottlenecking at Chanderiya Smelter Complex. During the year 2004-05, the company expanded the Rampura Agucha Mine from 2.30 million tonnes per annum to 3.75 million tonnes per annum.
During the year 2005-06, the company commissioned 170,000 tonnes per annum of Hydrometallurgical Zinc Smelter (Hydro I) at Chanderiya Smelter Complex. They commissioned 2 X 77 MW Captive Power Plant at Chanderiya Smelter Complex. Also, they Commissioned 50,000 tonnes per annum of Ausmelt Lead Smelter at Chanderiya Smelter Complex. During the year 2006-07, the company began production in Sindesar Khurd Mine with an initial production capacity of 0.3 million tonnes per annum. Also, they Commissioned 38.4 MW of Wind Energy Farms at Gujarat.
During the year 2007-08, the company commissioned 170,000 tonnes per annum of Hydrometallurgical Zinc Smelter (Hydro II) in a benchmark time of 20 months at Chanderiya Smelter Complex. They commissioned 80 MW Captive Power Plant at Chanderiya Smelting Complex. They completed 5,000 tonnes of zinc debottlenecking at Debari Zinc Smelter. Also, they Commissioned 50.4 MW of Wind Energy Farms at Gujarat.
During the year 2008-09, the company expanded the Rampura Agucha Mine from 3.75 million tonnes per annum to 5.00 million tonnes per annum making the total mining capacity of the Company to 7.40 million tonnes per annum. They completed the 88,000 tonnes per annum zinc debottlenecking at Chanderiya Smelter Complex & Debari Zinc Smelter making the total metal production capacity to 754,000 tonnes per annum. They commissioned 80 MW Captive Power Plant at Zawar Mines. Also, they commissioned 34.4 MW Wind Energy Farms making the Company's total Wind Energy capacity to 123.2 MW.
During the year 2009-10, the company expanded the Rampura Agucha Mine from 5.00 million tonnes per annum to 6.00 million tonnes per annum, increasing the total mining capacity of the Company to 8.40 million tonnes per annum. Also, they commissioned the 210,000 tonnes per annum Hydrometallurgical Zinc Smelter at Rajpura Dariba, increasing the Zinc & Lead metal production capacity to 964,000 tonnes per annum (879,000 tonnes of Zinc and 85,000 tonnes of Lead).
During the year 2010-11, the company commissioned the 1.50 mtpa concentrator at Sindesar Khurd. Also, they added 160 MW (80X2) captive power generation capacity atDariba. In January 2011, the company announced an addition of 150 MW in our existing wind power capacity. Of this, around 135 MW has already been commissioned. The balance capacity is expected to be commissioned in Q4 FY 2012. Post the expansion, the company's wind power generation capacity will increase to 273 MW.
The company's Silver production capacity is expected to leap to 500 tonnes by the end of FY 2012, on the back of volume ramp up at Sindesar Khurd & Rampura Agucha and various recovery improvement measures. After the commissioning of the 100 ktpa Lead Smelter, the company will cross the one million tonne landmark in metal production capacity.