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.
Nurol Holding Nurol Holding is an industrial conglomerate in Turkey operating in the construction, defence manufacturing, energy, investment banking and tourism industries. Its core business is construction; Nurol Construction was founded in 1966. It is privately owned, with equal shares held by three members of the Çarmıklı family. The Holding was established in 1989.