Wheaton’s planned UK listing by year-end would make it the largest metals and mining company to join the LSE since Glencore in 2011.

Scientists discovered that carbon dioxide plays a crucial role in making metals used in green technologies accessible for mining.

Move is part of a broader plan to cut reliance on imported supply of key commodities, including rare earths and cobalt.

Researchers developed a catalyst that only needs a fraction of the amount of platinum that current hydrogen fuel cells for cars do.

More than 600,000 ounces of platinum have been added to ETFs since mid-May, according to data compiled by Bloomberg.

Shortages force PGM miners to source metal on the open market to honour contract volumes.