The second and fourth options also include blending of ore feed that will be processed to produce one copper flotation concentrate. In the third option, ore feed will be processed independently and two copper concentrates will be blended to produce a saleable product. Mining will be carried out to achieve an annual throughput between 10Mtpa and 20Mtpa.Mining at Tampakan will be carried out using any of the four options under evaluation in a scoping study. The first option includes block cave mining. A block cave mine with a small open pit is being considered as the second option. The third option includes a block cave mine with a moderately sized open pit while the fourth option focuses on a large open pit.
The life of mine is estimated to be 17 years.