TSX, NYSE – HBM 2022 No. 3 Hudbay Provides Annual Reserve and Resource Update
TSX, NYSE – HBM
2022 No. 3
Hudbay Provides Annual Reserve and Resource Update
• Mineral reserve growth replaces close to 100% of 2021 mining depletion and extends the mine life at
each of Constancia and Snow Lake by one year to 2038
• Annual copper production from Constancia is expected to average approximately 105,000 tonnes
over the next seven years, a 35% increase from 2021 levels
• Annual gold production from Snow Lake is expected to average over 180,000 ounces over the next
six years, a more than 55% increase from 2021 levels
• Positive scoping study on underground mining potential at Constancia Norte results in an initial
inferred mineral resource estimate of 6.5 million tonnes at 1.2% copper , adding potential to increase
copper production at Constancia after 2028
• Successful exploration at Lalor and the 1901 deposit in Snow Lake further increases the size of the
base metal and gold zones at these deposits ; contained gold in Snow Lake’s mineral reserve
estimates increases by 218,000 ounces to 2.4 million ounces
• Ongoing exploration drilling at Copper World in Arizona has the potential to extend known
mineralization on private mining claims ; preliminary economic assessment remains on track for
completion in the first half of 2022
Toronto, Ontario, March 28, 20 22 – Hudbay Minerals Inc. (“Hudbay” or the “ company”) (TSX, NYSE:HBM)
today released its annual mineral reserve and resource update . All amounts are in U.S. dollars, unless otherwise
noted.
“We have continued to grow our copper and gold mineral reserves and resources through successful exploration in
Peru, Snow Lake and Arizona ,” said Peter Kukielski, Hudbay’s President and Chief Executive Officer. “ While we
already have a solid production growth profile for many years to come, our exploration efforts over the past year have
been successful in replacing what we have mined, adding reserves to our life of mine plans and expanding our
resource base to position us for additional long-term reserves growth. This is another example of our proven track
record of delivering value through exploration, and we look forward to continuing to advance our leading organic
pipeline of copper exploration and development assets for the next stage of growth at Hudbay.”
Constancia Operations
Mine planning gains and economic re -evaluations have resulted in additional mineral reserves at Constancia which
have largely offset 2021 mining depletion. Current mineral reserve estimates at Constancia total 521 million tonnes at
0.31% copper with over 1.6 million tonnes in contained copper. As a result, Constancia’s expected mine life has been
extended one year to 2038. The copper contained in inferred mineral resources has also increased in 2022 due to the
inclusion of the Constancia Norte underground mineral resource estimates.
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In 2021, Hudbay completed a positive scoping study which resulted in an inferred mineral res ource estimate of 6.5
million tonnes at 1.2% copper in two high grade skarn lenses located below the open pit in the Constancia Norte
area. The study concluded these two lenses could be mined by underground methods starting in 2029 to supplement
the open p it production. Please refer to Figure 1 for a cross -section of the conceptual underground mine design at
Constancia Norte. The company intends to conduct infill drilling and an internal pre -feasibility study in hopes of
converting the underground mineral r esources to mineral reserve s for inclusion in the mine plan for the Constancia
operations.
Hudbay released an updated mine plan for Constancia in 2021 that reflect ed an increase in copper and gold
production from 2022 to 2025 as the higher grades from the Pampacancha deposit enter the mine plan. The updated
mine plan incorporates higher -grade reserves including the Constancia Norte pit extension. With the incorporatio n of
Pampacancha and the Constancia Norte pit extension , annual production at Constancia is expected to average
approximately 10 5,000 tonnes of copper and 60,000 ounces of gold over the next seven years, an increase of
approximately 35% and 20%, respectively, from 2021 levels.
Current mineral reserves and resources (exclusive of reserves) for Constancia and Pampacancha as of January 1,
2022 are summarized below.
Constancia Operations
Mineral Reserve and Resource Estimates1,2,3,4,5 Tonnes Cu Grade
(%)
Mo Grade
(g/t)
Au Grade
(g/t)
Ag Grade
(g/t)
Constancia Reserves
Proven 426,200,000 0.29 82 0.042 2.90
Probable 56,800,000 0.24 69 0.043 3.06
Total Proven and Probable - Constancia 483,000,000 0.28 80 0.042 2.92
Pampacancha Reserves
Proven 36,400,000 0.65 177 0.368 5.26
Probable 1,600,000 0.52 234 0.259 6.33
Total Proven and Probable - Pampacancha 38,000,000 0.65 179 0.364 5.30
Total Proven and Probable 521,000,000 0.31 87 0.065 3.09
Constancia Resources
Measured 123,800,000 0.22 64 0.038 2.07
Indicated 118,200,000 0.22 65 0.037 2.08
Inferred – Open Pit 51,000,000 0.30 77 0.054 2.69
Inferred – Underground 6,490,000 1.20 69 0.137 8.62
Pampacancha Resources
Measured 9,200,000 0.37 63 0.293 5.71
Indicated 1,500,000 0.39 152 0.223 6.63
Inferred 6,800,000 0.33 102 0.286 5.01
Total Measured and Indicated 252,700,000 0.23 65 0.048 2.23
Total Inferred 64,300,000 0.40 79 0.087 3.53
Note: totals may not add up correctly due to rounding.
1 Mineral resources are exclusive of mineral reserves and do not have demonstrated economic viability.
2 Mineral resources do not include factors for mining recovery or dilution.
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3 The open pit mineral reserves and resources are estimated using a minimum NSR cut-off of $6.40 per tonne and assuming
metallurgical recoveries (applied by ore type) of 86% for copper on average for the life of mine, while the underground inferred
resources at Constancia Norte are based on a 0.65% copper cut-off grade.
4 Long-term metal prices of $3.45 per pound copper, $11.00 per pound molybdenum, $1,500 per ounce gold, and $20.00 per ounce
silver were used to estimate mineral reserves and resources.
5 Mineral resources are based on resource pit designs containing measured, indicated, and inferred mineral resources.
Peru Regional Exploration
Hudbay controls a large, contiguous block of mineral rights with the potential to hold mineable deposits within trucking
distance of the Constancia processing facility, including the past producing Caballito property and the highly
prospective Maria Reyna and Kusiorcco properties. Exploration agreement discussions with the communities of
Uchucarcco and Anahuichi on the Maria Reyna, Kusiorcco and Caballito properties are in progress.
Drilling continues at the Llaguen copper porphyry target in northern Peru with a total of 9,250 metres in 21 holes
completed to-date. Assays have been received f or eight holes and all holes have intersected mineralization. Based
on the positive results from the initial drilling, a second phase of drilling has been initiated aimed at defining an initial
inferred mineral resource estimate for Llaguen in the third quarter of 2022.
Other Constancia Updates
In March 2022, Hudbay obtained approval from Peru’s National Environmental Certification Service for Sustainable
Investments (SENACE) of a third amendment to the Environmental and Social Impact Assessment (“ESIA MOD III”)
for Constancia. The ESIA MOD III will allow for the optimization of the water balance and management plan, an
alternate road for concentrate transportation, improvements to the tailings management facility dam design criteria
and other operational benefits. This approval was obtained with technical input from the National Water Authority, the
Ministry of Agrarian Development and Irrigation, and the Ministry of Culture.
The company also signed an addendum to its framework agreeme nt with the province of Chumbivilcas in March
2022. Under the agreement, Hudbay will contribute to the district municipalities, assist with the return to classes in the
education sector and continue to provide employment opportunities within the province.
Snow Lake Operations
As a result of exploration success in 2021, additional mineral reserves were identified at Lalor and the 1901 deposit ,
which are expected to extend the mine life of the Snow Lake operations by one year until 2038 , maintaining the 17 -
year mine life. Resource to reserve conversion has more than offset 2021 mining depletion with a net gain for all
metals, including an additional 218,000 ounces of gold contained in reserves after adjusting for 2021 mining
depletion.
Refurbishment and commissioning activities at the New Britannia gold mill were completed in July 2021 and the
construction of the new copper flotation facility at New Britannia was completed in October 2021, ahead of the
original schedule. The copper facil ity consists of an innovative and first -of-its-kind flotation circuit based entirely on
Jameson cells, a modern pneumatic flotation design that offers a compact layout, low -cost process and flexible
flowsheet. Following a brief commissioning period, the Ne w Britannia mill achieved commercial production on
November 30, 2021. Full design throughput rates and recoveries are expected to be achieved in the second quarter
of 2022, a mere six months after commissioning.
Hudbay released an updated mine plan for the Snow Lake operations in 2021 that reflected an increase in a nnual
gold production to over 180,000 ounces on average during the next six years due to the incorporation of the New
Britannia mill, which represents an increase of more than 55 % from 2021 levels. The updated mine plan reflects the
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third phase of the company’s Snow Lake gold strategy focused on expanding and further optimizing operations.
These expansion and optimization initiatives includ e increasing the production rate at Lalor to 5,300 tonnes per day
by the end of 2022 following the closure of the 777 mine , increasing the throughput rate at the Stall mill to 3,800
tonnes per day , incorporating mineral reserves from the 1901 deposit into t he mine plan , and implementing a
recovery improvement project at the Stall mill to increase copper and precious metal recoveries. There also remains
potential to further enhance the Snow Lake operations through exploration opportunities and additional mill
processing projects.
Current mineral reserves and resources (exclusive of reserves) for Lalor , 1901 and other Snow Lake satellite
deposits as of January 1, 2022 are summarized below.
Lalor Mine and 1901 Deposit
Mineral Reserve and Resource
Estimates1,2,3,4,5,6,7
Tonnes
Zn Grade
(%)
Au Grade
(g/t)
Cu Grade
(%)
Ag Grade
(g/t)
Base Metal Zone Reserves
Proven – Lalor 6,420,000 5.57 2.6 0.47 29.5
Proven – 1901 1,260,000 8.00 2.2 0.32 24.7
Probable – Lalor 1,300,000 4.02 3.2 0.50 32.4
Probable – 1901 380,000 10.01 0.7 0.29 31.0
Total Proven and Probable - Base Metal 9,360,000 5.86 2.6 0.45 29.3
Gold Zone Reserves
Proven – Lalor 3,590,000 0.82 5.9 0.62 28.5
Proven – 1901 50,000 1.22 3.8 0.78 18.7
Probable – Lalor 4,190,000 0.53 5.1 1.05 27.9
Probable – 1901 20,000 0.51 1.6 1.89 5.3
Total Proven and Probable - Gold 7,850,000 0.67 5.4 0.85 28.1
Total Proven and Probable (Base Metal and
Gold) 17,200,000 3.50 3.9 0.64 28.7
Base Metal Zone Resources
Inferred – Lalor 1,960,000 5.72 1.5 0.31 30.4
Inferred – 1901 670,000 6.04 1.4 0.22 27.8
Total Inferred - Base Metal 2,630,000 5.80 1.5 0.29 29.7
Gold Zone Resources
Inferred – Lalor 4,170,000 0.28 5.1 1.56 29.0
Inferred – 1901 1,260,000 0.39 4.9 1.49 20.8
Total Inferred - Gold 5,430,000 0.31 5.1 1.54 27.1
Total Inferred (Base Metal and Gold) 8,060,000 2.10 3.9 1.13 28.0
Note: totals may not add up correctly due to rounding.
1 Mineral resources are exclusive of mineral reserves and do not have demonstrated economic viability.
2 Mineral resources do not include factors for mining recovery or dilution.
3 Base metal mineral resources are estimated based on the assumption that they would be processed at the Stall concentrator while
gold mineral resources are estimated based on the assumption that they would be processed at the New Britannia concentrator.
4 Long-term metal prices of $1.15 per pound zinc, $1,500 per ounce gold, $3.45 per pound copper, and $20.00 per ounce silver with
an exchange rate of 1.30 C$/US$ were used to estimate mineral reserves and resources.
5 Lalor mineral reserves and resources are estimated using a minimum NSR cut-off of C$117 per tonne for waste filled mining areas
and a minimum of C$127 per tonne for paste filled mining areas.
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6 Individual stope gold grades at Lalor were capped at 10 grams per tonne as a prudent estimate until reserves-to-mill reconciliations
can be developed to support the recovery of higher-grade gold. This capping method resulted in an approximate 3% reduction in the
overall gold reserve grade at Lalor.
7 1901 mineral reserves and resources are estimated using a minimum NSR cut-off of C$110 per tonne.
Snow Lake Regional Deposits - Gold
Mineral Reserve and Resource
Estimates1,2,3,4,5,6,7,8
Tonnes
Zn Grade
(%)
Au Grade
(g/t)
Cu Grade
(%)
Ag Grade
(g/t)
Probable Reserves
WIM 2,450,000 0.25 1.6 1.63 6.3
3 Zone 660,000 - 4.2 - -
Total Probable (Gold) 3,110,000 0.20 2.2 1.28 5.0
Inferred Resources
Birch 570,000 - 4.4 - -
New Britannia 2,750,000 - 4.5 - -
Total Inferred (Gold) 3,320,000 - 4.5 - -
Note: totals may not add up correctly due to rounding.
1 Mineral resources are exclusive of mineral reserves and do not have demonstrated economic viability.
2 Mineral resources do not include factors for mining recovery or dilution.
3 Gold mineral resources are estimated based on the assumption that they would be processed at the New Britannia concentrator.
4 Long-term metal prices of $1.15 per pound zinc, $1,500 per ounce gold, $3.45 per pound copper, and $20.00 per ounce silver with
an exchange rate of 1.30 C$/US$ were used to confirm the economic viability of the mineral reserve estimates.
5 WIM mineral reserves are estimated using a minimum NSR cut-off of C$150 per tonne, assuming processing recoveries of 98% for
copper, 88% for gold and 70% for silver based on processing through New Britannia mill's flotation and tails leach circuits.
6 3 Zone mineral reserves are estimated using a minimum NSR cut-off of C$150 per tonne, assuming processing recoveries of 85%
for gold based on processing through New Britannia mill's leach circuit.
7 New Britannia mineral resource estimates have been reported at a minimum true width of 1.5 metres and with a cut-off grade
varying from 2 grams per tonne (at the lower part of New Britannia) to 3.5 grams per tonne (at the upper part of New Britannia).
8 Mineral reserves and resources were initially estimated using metal price assumptions that vary marginally over the assumptions
used to estimate mineral reserves at Lalor. In the Qualified Person’s opinion, the combined impact of these small variations does not
have any impact on the mineral reserve and resource estimates.
Snow Lake Regional Deposits – Base Metal
Mineral Reserve and Resource
Estimates1,2,3,4,5,6,7
Tonnes
Zn Grade
(%)
Au Grade
(g/t)
Cu Grade
(%)
Ag Grade
(g/t)
Indicated Resources
Pen II 470,000 8.89 0.3 0.49 7
Talbot 2,190,000 1.79 2.1 2.33 36
Total Indicated (Base Metals) 2,660,000 3.04 1.8 2.01 31
Inferred Resources
Watts 3,150,000 2.58 1.0 2.34 31
Pen II 130,000 9.81 0.3 0.37 7
Talbot 2,450,000 1.74 1.9 1.13 26
Total Inferred (Base Metals) 5,730,000 2.39 1.3 1.78 28
Note: totals may not add up correctly due to rounding.
1 Mineral resources are exclusive of mineral reserves and do not have demonstrated economic viability.
2 Mineral resources do not include factors for mining recovery or dilution.
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3 Base metal mineral resources are estimated based on the assumption that they would be processed at the Stall concentrator.
4 Watts mineral resources are estimated using a minimum NSR cut-off of C$150 per tonne, assuming processing recoveries of 90%
for copper, 80% for zinc, 70% for gold and 70% for silver.
5 Pen II mineral resources are estimated using a minimum NSR cut-off of C$75 per tonne.
6 Watts and Pen II mineral resources were initially estimated using metal price assumptions that vary marginally over the
assumptions used to estimate mineral resources at Lalor. In the Qualified Person’s opinion, the combined impact of these small
variations does not have any impact on the mineral resource estimates.
7 Includes 100% of the Talbot mineral resources reported by Rockcliff Metals Corp. in its 2020 NI 43-101 technical report published
on SEDAR. Hudbay currently owns a 51% interest in the Talbot project.
Snow Lake Regional Exploration
Exploration efforts in 2021 increased inferred mineral resources at Lalor and 1901 by 1.1 million tonnes despite
delays in underground drill programs caused by COVID -19 related restrictions . This increases the total inferred
mineral resources at Lalor and 1901 to 8.1 million tonnes, which have the potential to maintain the 5,300 tonnes per
day production level beyond 2028 and further extend the mine life.
Hudbay is actively conducting surface and underground winter drilling activities in the Snow Lake area, primarily
focused on the copper-gold rich feeder zone at the 1901 deposit, the d rilling gap between 1901 and lens 17 at Lalor,
and a high -priority geophysical target located immediately north of Lalor. In addition, the company continues to
compile results from ongoing infill drilling programs at Lalor and 1901.
Rosemont and Copper World Projects
The Rosemont and Copper World deposits are 100% owned by Hudbay and are located predominantly on wholly
owned private land in Pima County, Arizona.
Current mineral reserves and resources (exclusive of reserves) for Rosemont as of January 1, 2022 are summarized
below.
Rosemont Project
Mineral Reserve and Resource
Estimates1,2,3,4,5
Tonnes
Cu Grade
(%)
Mo Grade
(g/t)
Ag Grade
(g/t)
Proven 426,100,000 0.48 120 4.96
Probable 111,000,000 0.31 100 3.09
Total Proven and Probable 537,100,000 0.44 116 4.57
Measured 161,300,000 0.38 90 2.72
Indicated 374,900,000 0.25 110 2.60
Total Measured and Indicated 536,200,000 0.29 104 2.64
Inferred 62,300,000 0.30 100 1.58
Note: totals may not add up correctly due to rounding.
1 Mineral resources are exclusive of mineral reserves and do not have demonstrated economic viability.
2 Mineral resources do not include factors for mining recovery or dilution.
3 Blocks were classified as Proven or Probable in accordance with CIM Definition Standards 2014.
4 Mineral reserves were estimated using metal prices of $3.15 per pound copper, $11.00 per pound molybdenum and $18.00 per
ounce silver. Metallurgical recoveries of 90% copper, 63% molybdenum and 75.5% silver were applied. No metallurgical recovery of
molybdenum and silver from oxide ore is projected. An NSR cut-off value of $6.60 per tonne was assumed, based on process
recoveries and total processing and general and administrative operating costs.
5 Mineral resources are constrained within a computer generated pit using the Lerchs-Grossman algorithm and were estimated
based on the following long-term metals prices: $3.15 per pound of copper; $11.00 per pound of molybdenum; and $18.00 per
ounce of silver. Metallurgical recoveries of 85% copper, 60% molybdenum and 75% silver were applied to sulfide material.
Metallurgical recoveries of 40% copper, 30% molybdenum and 40% silver were applied to mixed material. A metallurgical recovery
of 65% for copper was applied to oxide material. NSR was calculated for every model block and is an estimate of recovered
economic value of copper, molybdenum, and silver combined. Cut-off grades were set in terms of NSR based on current estimates
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of process recoveries and total processing and general and administrative operating costs of $6.10 per tonne for oxide, mixed and
sulfide material.
The Copper World project consists of seven deposits extending over seven kilometres, including Bolsa, Broad Top
Butte, Copper World, Peach, Elgin, South Limb and Nort h Limb, with mineralization closer to surface than at
Rosemont.
Current mineral resources for the Copper World project as of January 1, 2022 are summarized below.
Copper World Project
Mineral Resource Estimates1,2,3,4,5,6 Tonnes Cu Grade
(%)
CuSS
Grade (%)
Mo Grade
(g/t)
Ag Grade
(g/t)
Potential Flotation Processing Method
Indicated 180,000,000 0.37 0.07 136 2.7
Inferred 91,000,000 0.36 0.05 129 3.8
Potential Leach Processing Method
Indicated 92,000,000 0.34 0.27 - -
Inferred 51,000,000 0.35 0.27 - -
Total Resources
Indicated 272,000,000 0.36 0.14 90 1.8
Inferred 142,000,000 0.36 0.13 83 2.4
Note: totals may not add up correctly due to rounding.
1 CIM definitions were followed for the estimation of mineral resources. Mineral resources that are not mineral reserves do not
have demonstrated economic viability.
2 Mineral resources are reported within an economic envelope defined by a pit shell optimization algorithm and assuming a
selective mining unit of 50x50x50 feet. This pit shell is defined by a revenue factor of 1.0 assuming operating costs adjuste d and
updated from the 2017 Rosemont Feasibility Study.
3 Mineral resource estimates were rep orted using a cut -off of 0.1% Cu and were separated by potential processing method into
flotation and leach if they respectively had a CuSS/Cu ratio below or above a threshold of 50%.
4 Metal recovery estimates assume that this mineralization would be proc essed at a combination of facilities, including copper and
molybdenum flotation and heap and/or run-of-mine leach pads followed by solvent extraction and electrowinning.
5 CuSS represents the copper grade in oxides.
6 Specific gravity measurements were estimated from core box weights validated by industry standard laboratory measurements.
The global resource estimate for Copper World includes near surface, higher grade indicated mineral resources of 96
million tonnes at 0.57% copper, including 0.27% copper in oxides, and inferred mineral resources of 31 million tonnes
at 0.71% copper, including 0.27% copper in oxides. The higher grade resource has the potential to be mined earlier
in the mine life. Resources comprise both sulphide and oxide mineralogy that are potentially amenable to flotation
and heap leach processing methods, respectively.
Potential Synergies Between Copper World and Rosemont
Approximately 33 million tonnes of inferred mineral resources at the Bolsa deposit were considered to be waste in the
resource pit shell used for the NI 43 -101 Technical Report Feasibility Study for Rosemont dated March 30, 2017
(“2017 Rosemont Feasibility Study”). For that study, these tonnes were accounted for as pre -stripping since there
were no mineralized intersections available at the time. Any ability to convert Bolsa mineral resources to reserves
would be expected to result in less waste being mined at Rosemont, thereby reducing costs and energy consumption
per tonne of ore mined.
The Rosemont deposit also contains oxide mineralization that was previously classified as waste, which may be able
to be processed with the oxide mineralization at Copper World. This would increase metal production while further
reducing costs and energy consumption per tonne mined at Rosemont.
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It is expected that additional synergies will be identified as Hudbay continues to close the drilling gap between Bolsa
and Rosemont.
Continued Regional Exploration Success
The company has increased the number of drill rigs at Copper World to seven to conduct infill drilling and to support
future economic studies. There remain several opportunities to further extend economic mineralization within the
private land limits at Copper World and Rosemont. As shown in Figure 2, there is opportunity to extend the
mineralization north and south of Bolsa through infill drilling to bridge the gaps. There are also potential marginal
extensions to the south of the Copper World deposit and to the east of the North Limb and South Limb deposits.
Preliminary Economic Assessment Progressing Well
The technical studies for Copper World are well -advanced and the results will be incorporated into a Preliminary
Economic Assessment (“PEA”) contemplating the development of the Copper World deposits in conjunction with the
Rosemont deposit. The PEA is also expected to reflect preliminary expectations of potential synergies bet ween
Copper World and Rosemont. Hudbay is on track to publish the PEA results in a NI 43 -101 Technical Report in the
first half of 2022.
Mason Project
The Mason project is a large greenfield copper deposit located in the historic Yerington District of Nevada and is one
of the largest undeveloped copper porphyry deposits in North America. Mason ’s measured and indicated mineral
resources are comparable in size to Constancia and Rosemont. Hudbay views the Mason project as a long -term
option for future development and a strong component of its pipeline of long -term growth opportunities. Since
acquiring Mason, Hudbay has consolidated a prospective package of patented and unpatented mining claims
contiguous to the Mason project and has advanced a n umber of technical studies including a revised resource model
and PEA.
The Mason PEA was completed in April 2021 and contemplates a 27 -year mine life with average annual copper
production of approximately 140,000 tonnes over the first ten years of full p roduction. At a copper price of $3.25 per
pound, the after-tax net present value using a 10% discount rate is $773 million and the internal rate of return is 15%.
There is opportunity to further enhance the project economics through exploration for highe r grade satellite deposits
on Hudbay’s prospective land package in Nevada, including Mason Valley. The Mason Valley property hosts several
historical underground copper mines that were in production in the early 1900s. Much of the Mason Valley property is
located on Hudbay’s wholly owned private lands and contains highly prospective skarn mineralization. An initial drill
program to test the Mason Valley skarn properties is planned for late 2022.
Current mineral resource estimates for Mason as of January 1, 2022 are summarized below.
Mason Project
Mineral Resource Estimates1,2,3,4,5 Tonnes Cu Grade
(%)
Mo Grade
(g/t)
Au Grade
(g/t)
Ag Grade
(g/t)
Measured 1,417,000,000 0.29 59 0.031 0.66
Indicated 801,000,000 0.30 80 0.025 0.57
Total Measured and Indicated 2,219,000,000 0.29 67 0.029 0.63
Inferred 237,000,000 0.24 78 0.033 0.73
Note: totals may not add up correctly due to rounding.
1 Mineral resource estimates that are not mineral reserves do not have demonstrated economic viability.