Metalla Royalty & Streaming Ltd., a precious metals royalty and streaming company, engages in the acquisition and management of precious metal royalties, streams, and related production-based interests in Canada, Australia, Argentina, Mexico, and the United States. It focuses on gold and silver streams and royalties. The company was formerly known as Excalibur Resources Ltd. and changed its name to Metalla Royalty & Streaming Ltd. in December 2016.