In 2002-03, the government sold its 64.92 per cent stake in HZL to NRI billionaire Anil Agarwal-led Vednata Resources, while retaining 29.54 per cent. In 2012, Agarwal offered about USD 2.57 billion to buy the government's remaining stake.
In a letter to the Finance Ministry, last month, Mines Ministry said that any plans to offload government's stake in HZL would not be "a wise move as zinc is a strategic mineral", a government official in know of the development said.
"Considering the situation that HZL controls almost all the known reserves of the metal and is the only big player in India, it is not advisable for the government to sell its stake in the firm keeping in mind the industrial importance that zinc holds," the Mines Ministry said.
Considered the fourth most widely used metal after Iron, Aluminium and Copper, Zinc is most commonly used as an anti corrosion agent for galvanisation -- a process of coating it on iron and steel for protection against corrosion.
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Besides HZL, the Braj Binani Group is the other player that through its firm Edayar Zinc Ltd produces around 14,000 tonnes per annum of the metal.
Even the Supreme Court, last week, had questioned the government move towards showing "hurry" in selling its shares in HZL which deals with "strategic minerals".
The apex court also restrained the government from going ahead with any further disinvestment of its stake in the firm.
Confirming the development, another official said the government gets a "healthy" dividend from HZL - which in the coming years is expected to increase further, considering the "strong indications" that industrial activity in India will pick up thereby increasing the consumption of Zinc.
In its 2014-15 annual report, HZL said the total outgo on dividend, including tax on dividend, will be Rs 2,207 crore during FY15 from Rs 1,730 crore in 2013-14.
HZL was incorporated in January 1966 as a Public Sector Undertaking (PSU) after the takeover of the erstwhile Metal Corporation of India Ltd.