Sierra Metals Places Cusi Mine on Care and Maintenance and Initiates Sale Process September 20, 2023 / Gambusino Prospector 2023-09-20-Sierra-Metals-Cusi-to-care-and-maintenance-Sierra_-_Press_Release_dated_September_20_2023-1Download Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like this:Like Loading...