RE: Impact of Price of Gold on MRE2 and on FMV13 Feb 2022 17:38
I agree that it will be interesting to see what they use.
Here’s what NCM used in the Feb 2021 statement. It’s interesting to note that they had some different (lower) assumptions for Telfer because of its “…comparatively short mine life”, perhaps they will feel able to unwind these now?
Mineral Resources and Ore Reserves Assumptions
Updated mining, metallurgical and long-term cost assumptions were developed with reference to recent performance data. The revised long-term assumptions include changes in performance consistent with changing activity levels at each site over the life of the operation and the latest study for each deposit. Long-term metal prices and foreign exchange assumptions for Mineral Resources and Ore Reserves are set out in Table 1. For long mine life assets the gold price has been increased by US$100/oz for both Mineral Resources and Ore Reserves from those used for December 2019 reporting. Copper and silver metal price assumptions remain unchanged from those used for December 2019 reporting. The AUD:USD exchange rate assumption for long life assets remain unchanged at 0.75 and local currency assumptions for the PNG Kina remain unchanged. In consideration of Telfer’s current comparatively short mine life the gold price assumption has been increased by US$200/oz and the copper price assumption has been decreased by US$0.20/Ib for Ore Reserves compared to that used for December 2019 reporting. The AUD:USD exchange rate for Telfer, considering its comparatively short mine life, has been lowered to 0.70 for Ore Reserves and remains at 0.75 for Mineral Resources. Note that Havieron Mineral Resource uses the long term metal price and exchange rate assumptions. Where appropriate, Mineral Resources are also spatially constrained within notional mining volumes based on metal prices of US$1,400/oz for gold and US$4.00/lb for copper. This approach is adopted to eliminate mineralisation that does not have reasonable prospects of eventual economic extraction from Mineral Resource estimates. Note that the increased long-term gold price assumptions have been applied to re-optimise the Lihir and Telfer operating Mineral Resource and Ore Reserve and Havieron Project and Namosi JV Mineral Resource estimates for this reporting period. Remaining assets of Cadia and the undeveloped projects at Wafi Golpu and Telfer will be progressively re-optimised when the full supporting studies are updated and are currently optimised on the more conservative 2019 gold price assumption.
Table 1, Long-term Metal Price Assumptions
Mineral Resource Estimates:
Metal, Newcrest excl Telfer, Telfer
Gold US$/oz, 1400, 1400
CopperUS$/lb, 3.40, 3.40
Silver US$/oz, 21, 10
Ore Reserve Estimates:
Metal, Newcrest excl Telfer, Telfer
Gold US$/oz, 1300, 1400
CopperUS$/lb, 3.00, 2.80
Silver US$/oz, 18.00, 18.00
**Current Spot Prices, for interest:
Gold US$/oz, 1860
CopperUS$/lb, 4.50
Silver US$/oz, 23.60