The list of 'S' refiners/mints/hallmarks:

• Sandoval Jewelers (to do)
• SB/Santa Barbara Metals (to do)
• S.C.S. Exchange (to do)
• Seaside Silver Recovery
• Security Metals Company (to do)
• Sel-Rex (to do)
• SIERRA AG-MET (Reno, NV) (to do)
• Silver Diamond Corporation
• SSB/Silver State Bullion
• Silverfarm (to do)
• Silvermat (to do)
• Silvertowne (to do)
• SRC? / Silver Refining Corp (to do)
• Simmons
• SiPi Metals Corp.
• SD Refining (San Diego) (to do)
• Spokane Bullion
• Spectrum Refiners
• SRS (to do)
• SSA/South Side Associates
• SSM/Sumitomo (to do)
• SSR/States Smelters and Refiners
• SSS (to do)
• Strickland
• Star Metals
• Sun Metals (to do)
• Swiss of America (to do)