Production ceased and the Platosa Mine was placed on care and maintenance in early Q4 2022. On January 5, 2022, the Company announced that it was assessing the economic viability of mining at Platosa at achievable dewatering rates and with acceptable capital expenditures, beyond mid-2022. The mineral resource estimates remaining beyond mid2022 steepened significantly, with fewer vertical-tonnes-per-metre than historically encountered.
Intense definition and infill drill programs initiated in 2021 to define the mine life wound down in the first quarter of 2022. The program did not identify sufficient mineralization in the gap zone however minable tonnage was identified in remnant areas of the mine above the water level. Continued in-stope analysis was conducted to assure all profitable tonnage above the water level will be extracted in 2022. The majority of mineable mineralization included in the 2022 plan was from remnant areas, pillar recoveries and remaining stopes in the section |