Inca Minerals Limited, a junior resource enterprise, focuses on the... Inca Minerals Limited, a junior resource enterprise, focuses on the acquisition, in-depth exploration, assessment, and ultimate development of mineral properties. The company's prospecting efforts are directed towards uncovering deposits of gold, copper, silver, zinc, and lead. Its most significant asset and primary venture is the Riqueza project, situated in Peru. This Australian-based company operates out of Subiaco.