AntaKori (Cu, Au)

Royalty and Terms: Osisko currently owns several NSR royalties covering the majority of the AntaKori resource, ranging from 0.125% to 1.5% depending on location. This includes a 1.5% NSR royalty covering the core Mina Volare claim. Osisko’s effective NSR royalty over the current resource is approximately 1.0%. There are existing third-party royalties covering various claims at AntaKori and Osisko has the right to participate in any buyback of existing royalties on the property.
Operator:  Visit Regulus Resources for more information
Primary Commodity: Copper, Gold
Location: Cajamarca, Pérou
Reserves and Resources:
  • Measured and indicated resources (exclusive of reserves) of 1,850 kt CuEq (250 Mt @ 0.74%CuEq)
  • Inferred resources of 1,762 kt CuEq (267 Mt @ 0.66% CuEq)
Production: N/A


  • Resource updates and expansion
  • Transition to sulfide processing at Tantahuatay which may necessitate an open pit pushback onto the AntaKori property
  • Potential success of sulfide leaching technology from Nuton improving scope and economics of the project

More details in the 2023 Asset Handbook


Source: Company disclosure and Osisko management estimates.