APT is the main raw material produced at most tungsten mines, and is generally shipped out to refineries for further processing into metallic tungsten and fabrication of metal products ...

supplying more than 50% of the country’s export revenue as one of the largest global tungsten producers. However, the mine, along with nearly all other metallic mines in South Korea, ceased ...

Recently attention has been directed to the exceptional properties of pure metallic tungsten, now produced in quantity for the manufacture of metal filament lamps, and its suitability for the ...