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.
Borusan Borusan Holding A.Ş. is a Turkish industrial group headquartered in Istanbul, Turkey. The company operates through the following segments: steel, distributorships, energy, and logistics.