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.
Korea General Zinc Industry Group Korea General Zinc Industry Group (Chosongul: 조선아연공업총회사) is a North Korean mining and industrial group headquartered in Pyongyang. The group produces zinc, lead, base bullion, lead concentrates, zinc concentrates, cadmium, arsenic, zinc residues and copper concentrate for export and domestic use. The group imports some industrial and mining accessories, including industrial chemical reagents and animal feed.