Endeavour Silver Provides Q1 2024 Construction Progress Update on Terronera; Construction Progress Reaches 53% Completion - Seite 2

Mine Development – During the quarter, over 1,000 metres of underground mine development was completed, bringing the total to over 3,200 metres. Mine crews continue working in Portal 1, 2, and 4 declines with excavations well advanced for the explosives magazines and the main pump-station sump system.

Upper Platform Plant Site – Surface mill and infrastructure construction is 56% complete and progressing on schedule. Concrete work is 83% complete, and structural steel erection is 80% complete.

• Primary Crusher – Structural and mechanical construction was initiated on the conveyor and apron feeder support steel, and the apron feeder was placed in position.
  
• Course Ore Stockpile and Reclaim (“COS”) Tunnel – Two apron feeders were installed in the COS tunnel along with structural steel support, which opened the area to install the SAG feed conveyor.  
  
• Grinding – All major SAG and Ball Mill components were assembled. The high-pressure hydraulic pump was used for mounting the main bearings (spherical roller bearings), and all four bearings were installed under vendor supervision. Structural steel and pump installations continued.
  
• Flotation – All flotation cell tanks were set in place and installation of the drive decks and structural steel installation continued. Several drive decks were assembled on the ground and lifted as complete units for each flotation cell tank. The regrind mill was set in place.
  
• Tailing Thickener – The floor foundation and wall concrete were completed and erection of steel commenced together with the installation of the thickener tank floor.
  

Lower Facilities Platform and TSF – Excavation for the TSF embankment key trench was nearly 60% complete, and the lower platform area was nearly 45% complete, with the excavated material suitable to use in the TSF key trench and as embankment fill. Concrete work on the lower platform is anticipated to start in Q2.

Procurement – Bulk materials procurement purchase orders have been released and lead times are aligned with the current schedule. The Procurement team has focused on critical path purchases, such as electrical components and transfer chutes, and reducing bulk material lead times to increase schedule float.

Onsite Personnel – The workforce increased to 150 employees and over 400 contractor workers.

Community Relations – Supporting the local municipality continues to be a major commitment. A new miner training program for local community members was established to provide training and employment. The Company also sponsored English and computer skills for local communities.