For the latest five years Copperstone Resources AB has conducted active exploration and diamond core drillings in Arvidsjaur Kommun, Norrbotten County – situated in the northern parts of Sweden, the latest years in order to locate and prove the existence of porphyry copper mineralisation.
This phase of mineral exploration started in 2016/2017 when the geological model as well as integrated geophysical surveys identified the potential of discovering porphyry-style copper mineralization in the Copperstone project area.
Since, the Company has increased its mineral resources and exploration target significantly, and the Copperstone project has the potential to write a new chapter in Swedish mineral exploration history.
In 2018/19 Copperstone acquired the PFS-stage project of Viscaria in Kiruna, containing 609,000 tons of copper (different classes) according to the JORC-code. Sunstone Metals Ltd is the new main owner of Copperstone and has representation on the Board of Directors, with proven track record of amongst others porphyry discoveries. Copperstone has never been larger or stronger than today. The goal is to bring Viscaria/Copperstone to becoming a significant copper producing company with an outstanding exploration upside in the years to come.