Sunshine Silver Mining & Refining Company (the "Company" or "Sunshine") (NYSE:SSMR), a mining company advancing the next chapter of American silver, today announced the expansion of its consolidated mineral rights position in Idaho's Silver Valley by approximately 14,100 acres, or 60%, to approximately 38,000 acres. Sunshine is the largest mineral rights holder in the Silver Valley, the most prolific silver district in U.S. history.

Furthermore, the Company is also initiating a multi-year, 45,000-meter surface exploration drilling program across its expanded land position. The program will initially target three drill-ready areas: East Sunshine, located immediately east of the Sunshine Mine along strike of known mineralization, as well as Rock Creek and Pine Creek within the Company's broader land position. These targets provide multiple opportunities to further evaluate the potential for new discoveries across the Company's highly prospective and underexplored district-scale land package. Sunshine expects surface drilling to begin in the fourth quarter of this year.