Carlota / CopperView on map
Carlota is a high quality copper project in the US, owned and operated by KGHM.
KGHM Polska Miedz
Royalty rate and type
Balance sheet classification
As part of the royalty portfolio acquisition from South32, in July 2022, the Group acquired a 5.0% NSR royalty over the Carlota project in the US, owned and operated by KGHM Polska Miedz.
Extraction of copper ore from the Carlota mine is carried out in the form of heap-leaching from the existing ore pads. No mining is currently taking place.
The ore is deposited on heaps for leaching with a sulphuric acid solution. The copper-enriched solution obtained after leaching is processed at the solvent extraction and electrowinning (‘SX-EW’) in order to produce high quality copper cathodes – the final product of the process.
In 2015, the site additionally introduced the subsurface leaching (‘SSL’) system. This solution allowed for the injection of sulphuric acid under low pressure directly into the heap, which in turn allows for the extraction of metal that was originally not fully leached from the ore stored in the last years of production.
The mine commenced production in 2008
2021 production at the Carlota mine was 5.5 kt of copper cathode
Top 10 global copper producer operating across three continents