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