All mines were scheduled independently, with the sequences beginning as soon as possible. Start
dates were then adjusted for each mine in order to optimize the throughput over the mine life.
Based on these results, further optimization work could be performed, using consolidated
resource leveling and an overall production target. The start dates selected for each deposit are
as follows:
- Doris: Currently in production;
- Naartok: Development in progress (begun December 2019);
- Suluk: Development begins January 2027;
- Madrid South: Development begins January 2027;
- Boston: Development begins July 2025.
The development start dates assume any supporting infrastructure work is complete prior to that date, including construction of the Boston haul road.
Of the 16.8 Mt of ore produced during the LOM (2020-2034), the distribution by mine will include Doris at 7%, Naartok at 46%, Suluk at 22%, Madrid South at 5%, and Boston at 20%.
Current ore mining is ongoing at the Doris deposit and a small crown pillar recovery surface operation at the Madrid North deposit and advances to the Madrid North underground operation, Madrid South, Suluk and Boston deposits will occur sequentially over the defined Life of Mine (LOM).
Production for the Doris Plant LOM period (2020-2023) is on average 1,963 t/d from two mines including Doris and Madrid North (Naartok).
Production for the Madrid Pla ........
