Let's talk DSO, page-247

HI Sandun,

The OPEX was based on AW1 simplistic values, I added a 20% premium to the values,

Storm Copper Project (Arctic Adjusted)

• Mining Cost: $5/tonne × 1.20 (Arctic premium) = $6/tonne
• Processing Cost: $10/tonne × 1.20 = $12/tonne
• G&A Cost: $12/tonne × 1.20 = $14.4/tonne
• Total OPEX per Tonne: $6 + $12 + $14.4 = $32.4/tonne

Annual Operating Costs:

• Total Storm Operating Cost: $32.4 × 1.5 Mt = $48.6 million per annum

Quarterly Activities Report for the Period Ended Sept 2024 - 31st Oct 2024, JORC Code, 2012 Edition – Table 1

The CAPEX figures in the table assume loan payback over 10 years, which is typical for mining project finance.

Disclaimer: all Chatgpt output, so use with caution, but does get people asking the question on the overall project economics. We all need to wait for the actual PEA/PFS in Q1 2025.