4.3.4 Telfer and Havieron
Summary
Grant Samuel has valued Telfer in the range $500-600 million. The valuation incorporates the value of the
existing operating mine at Telfer and the value of the Havieron Project (at Newcrest’s 70% interest).
Scenarios and Assumptions
The valuation of Telfer’s core operations (inclusive of Havieron) is based on production scenarios developed
by AMC. The valuation assumptions are summarised below (all costs are presented on a real FY23 basis
and on a 100% basis).
SCENARIO 1
Scenario 1 assumes that Newcrest successfully develops the Havieron project and identifies new mining
fronts to extend the operating life of Telfer. The production case includes the following assumptions:
total ore production of 59Mt over the project life, including:
• 37Mt from Telfer’s existing open pit and mining fronts through to FY26. Head grades decline to
less than 0.5 g/t gold and 0.1% copper as the ore reserves in these areas are depleted;
• 8Mt from new higher grade underground mining fronts in Telfer at slightly lower production rates
than the historical underground operations (at around 0.9Mtpa). Production from these areas
are assumed to commence in FY28 and run through FY35; and
• 14Mt from Havieron from FY27 to FY35, which ramps up to 2Mtpa in the second year of
operations. Head grades are substantially higher than at the legacy mining operations at Telfer
(averaging around 3.7 g/t gold and 0.5% copper);
total ore milled broadly equals ore production in each year (with the exception of the wind-down of
ore stockpiles in the first years of operations). Following the conclusion of open pit mining operations,
recovery rates are expected to jump from around 75% to 87-91%
As a result, gold production over the project life is approximately 2.4Moz and can be broadly
categorised into two distinct phases:
• between FY24 and FY26, a sharp decline from around 400koz of gold in FY24 (consistent with
historical periods) to just 120koz in FY25 and 90koz in FY26 (and zero in FY27); and
• between FY28 and FY32, approximately 250-290koz gold per annum as higher grade ore from the
new mining areas is processed before ramping down in the final three years of operations.
Havieron accounts for around 75-80% of gold production in each year.
Approximately 490koz of gold sales are assumed to be hedged at fixed Australian dollar contracts
through FY26 (representing approximately 77% of total sales over that period). The balance is sold at
spot prices.
Total copper production over the project life is approximately 100kt and produced at 9kt per annum
over the project life (higher production rate in the second phase due to improved copper head grades
and recovery rates);
cash operating costs of approximately $53/t of milled ore over the project life, reflecting the stepchange in cost profile
• from FY24 to FY26, as the lower cost open-pit mining operation winds down; and
• from FY27 onwards, as operating costs step up due to the transition to underground-only
operations at both Telfer and Havieron;
other costs including state royalties (approximately 2.5% of gold revenue and 5.0% of copper
revenue), treatment and refinery charges, tolling recoveries (for Havieron), penalties and cash
rehabilitation costs (assumed to be approximately $160 million for Telfer and $105 million for
Havieron);
total capital expenditure comprises:
• upfront development costs in relation to Havieron (primarily incurred between FY24 and FY27).
The capital expenditure is based on the initial estimates contemplated in the 2021 pre-feasibility
study and escalated for cost inflation, scope changes and new geotechnical information;
• other growth capital expenditure of approximately $35 million (most of which is incurred
between FY28 and FY32) to develop new Telfer underground mining extensions; and
• sustaining capital expenditure of approximately $30 million per annum (total at both Telfer and
Havieron); and
income tax rate of 30% (the Australian corporate tax rate).
SCENARIO 2
Scenario 2 incorporates the development of:
19Mt in incremental ore inventory from Havieron (33Mt total) as a result of successful resource-toreserve conversion, including the inferred resource zone at the high grade Southeast Crescent Zone
and Breccia Zone. Mining rates improve to 3Mtpa and extend the mine life to FY39; and
14Mt in incremental ore inventory at Telfer underground (22Mt total). Mining rates ramp up to as
high as 3.5Mtpa and extend the mine life to by an additional year to FY36.
Total ore milled increases to nearly 100Mt over the project life (representing over 55% of total mineral
resource at Telfer’s operating deposits and Havieron). As higher grade areas are included in Scenario 2,
total gold and copper production over the mine life increase by a greater proportion to 4.3Moz gold and
184kt copper over the life of mine.
Cash operating costs are slightly higher (approximately $55/t of milled ore over the project life) as more
production is weighted towards the higher cost underground operations than in Scenario 1. Capital
expenditure is expected to be approximately $320 million higher than in Scenario 1 due to the investments
associated with developing new underground mining fronts (of which approximately 85% of the
incremental spend is incurred in Havieron). Rehabilitation costs are expected to be unchanged.
The following chart shows the ore volumes assumed to be produced from Telfer (inclusive of Havieron) (on
a 100% basis) as well as the expected gold and copper in each year (incremental volumes from Scenario 2
are represented by dotted lines):
more to follow