Sunshine Silver Mining & Refining Company (SSMR) has successfully completed its initial public offering, raising approximately $310.5 million in gross proceeds. The company offered 23 million shares at a price of $13.50 each, and the underwriters exercised their over-allotment option fully. The stock began trading on the New York Stock Exchange on June 4, 2026. Morgan Stanley, Scotiabank, and BMO Capital Markets served as joint lead book-running managers for the offering, while Canaccord Genuity, Citigroup, and RBC Capital Markets acted as joint bookrunners. The registration statement was declared effective by the Securities and Exchange Commission on June 3, 2026. Sunshine Silver operates in Idaho's Coeur d'Alene Mining District and plans to bring the historic Sunshine Mine back into production, leveraging its vertically integrated mine-to-mill-to-refinery platform, which includes an onsite silver refinery and permits for antimony production.