During the first quarter earnings call, Barrick Gold mentioned that royalty and streaming deals are on the table as well. Among royalty and streaming companies, Silver Wheaton ( WPM -3.28% ) and Royal Gold ( RGLD -2.49% ) are already participating in the project. Silver Wheaton is unlikely to contribute more to Pascua-Lama. The company has already dedicated a decent sum to the project, and is waiting for the start of production.