 EL SEGUNDO, Calif. and COEUR DALENE, Idaho, Dec. 09, 2020 GLOBE NEWSWIRE -- A-Mark Precious Metals , Inc. NASDAQ : AMRK , a leading full-service provider of products and services to the global precious metals market, today announced that it recently acquired a 31.1 interest in Sunshine Minting, Inc. SMI, a leading manufacturer of precious metals mint products and a long-standing supplier and counterparty of A-Mark. 