Answer: Hindustan Zinc Limited
Notes: Recently, Hindustan Zinc Ltd (HZL) received a licence to explore and mine a tungsten block in Andhra Pradesh. Tungsten is a chemical element with the symbol W and atomic number 74. It is a naturally occurring transition metal found in minerals like wolframite and scheelite, not as a pure metal. It has the highest melting point of all metals at 3410 °C and the lowest vapor pressure at that temperature. It also has the highest tensile strength above 1650 °C and remains solid at room temperature.
