TSF Design and CQA

Tierra Group provided detailed Stage 1 and 2 Tailings Storage Facility design, conducted a process plant geotechnical foundation investigation, and provided Construction Quality Assurance for Sunshine Silver Mining's Los Gatos Project in Chihuahua, Mexico.

Tierra Group then designed a raise of the tailings storage facility (TSF) and provided construction quality assurance.

Engineer of Record

More recently, Tierra Group provided Engineer of Record services; including the development of Operations, Maintenance, and Surveillance (OMS) Manual, the development of an Emergency Action Plan (EAP), and annual operational support.

Technical Report Update TSF S-K 1300

Tierra Group updated the S-K 1300 Technical Report (TR), including updating the GoldSim water balance and figures (final dam layout and sections) to accommodate the updated life-of-mine (LOM) reserves. Tierra Group updated pertinent sections of the S-K 1300 TR to reflect the updated conditions.