The Sunshine Precious Metals Refinery is a zero discharge facility that continues to increase production levels. The refining facility is currently processing copper/silver and gold concentrates in addition to refining silver doré and other materials. Assays of Silver produced at the Sunshine Precious Metals Refinery consistently attain purities of 99.95% silver or better. The SUNSHINE® silver brand is accepted as good delivery on COMEX (Chicago Mercantile Exchange).