Sri Lankan authorities on Sunday put on show what they said was the world's largest natural corundum blue sapphire.

China's demand for imported bauxite is set to increase by around 20% to 132 million tonnes in 2022.

In the past two weeks, two other Chinese companies have both announced plans to produce 40,000 tonnes per year of matte in Indonesia.

India consumed 446.4 tons of gold in 2020 and purchases were about 360 tons in the first nine months of this year, WGC data shows.

The insurer completed the entire sale of directly-managed equity and fixed income portfolios in October, seven years ahead of its original target.

The ore that contains sufficient valuable mineral to be treated by milling process is what ends up going into the processing plant compared to run of mine ore production.

A formal construction decision is expected in early 2022.

The newly-developed alloy can inactivate 99.75% of the SARS-CoV-2 virus within three hours and 99.99% within six hours.