Who principally owns the parent company of Hindustan Zinc Limited  ?
Hindustan Zinc Hindustan Zinc Limited (HZL) is an integrated mining and resources producer of zinc, lead, silver and cadmium. It is a subsidiary of Vedanta Resources PLC. HZL is the world's second largest zinc producer. Its FY2015 revenues were Rs. 147.9 billion.
Tata Global Beverages Tata Global Beverages Limited (formerly Tata Tea Limited) is an Indian multinational non-alcoholic beverages company headquartered in Kolkata, West Bengal, India and a subsidiary of the Tata Group. It is the world's second-largest manufacturer and distributor of tea and a major producer of coffee.