LONDON (Alliance News) - Alexander Mining PLC on Tuesday said subsidiary MetaLeach Ltd has been granted a patent for a type of leaching in Chile.
The patent covers a method of ammoniacal leaching, Alexander said, and is part of the subsidiary's "family" of core AmmLeach technologies. It last for 20 years from next Wednesday.
Chief Executive Martin Rosser said: "We are delighted with the grant of our patent in Chile for a method for ammoniacal leaching."
"Chile is the world's largest producer of copper and a leader in copper heap leaching. We believe that there are significant opportunities in the country where AmmLeach has major benefits compared to conventional acid leaching methods."
Shares in Alexander Mining were 4.0% higher on Tuesday at a price of 0.13 pence each.
