Vietnam News reported Hoang Thai Joint Stock Company built a $10 million tungsten refinery that has been closed down in Vietnam.
As quoted in the market news:
More than 4,000 tonnes of wolfram ore stored at the refinery for processing has been removed from the site. Authorities have demanded that the environment be restored to its original state.
Wolfram, also known as tungsten, is a chemical element used mainly in electrical applications. Its many alloys have numerous applications, most notably in incandescent light bulb filaments and X-ray tubes