Expansion drilling success drives strong
resource growth
Coeur Mining, Inc. (“Coeur” or the “Company”) (NYSE: CDE) today
reported year-end 2021 proven and probable reserves of 3.1 million
ounces of gold, 238.2 million ounces of silver, 296.1 million
pounds of zinc and 193.2 million pounds of lead. Year-over-year
gold reserves were essentially unchanged, net of depletion, driven
by a higher cut-off grade assumption at Rochester offset by
increases at Wharf and Palmarejo. Year-over-year silver reserves
decreased due primarily to the higher cut-off grade applied at
Rochester partially offset by an increase at Palmarejo.
Measured and indicated resources totaled 3.4 million ounces of
gold, 285.0 million ounces of silver, 589.4 million pounds of zinc
and 312.6 million pounds of lead, reflecting double-digit
year-over-year increases across all metals driven by additions from
Palmarejo, Silvertip and Kensington.
Inferred resources were 2.7 million ounces of gold, 91.2 million
ounces of silver, 422.3 million pounds of zinc and 200.7 million
pounds of lead. Year-over-year gold and silver inferred resources
declined due to the higher cut-off grade assumption used at
Rochester, partially offset by increases at Kensington and Wharf.
Silvertip’s silver, zinc and lead inferred resources increased 48%,
37% and 40%, respectively.
Key Highlights1
- Success from five-year, nearly $240 million investment in
exploration – Infill-focused drilling programs successfully
replaced 1.8 million and 56.4 million ounces of cumulative gold and
silver production, respectively, as well as added an additional 0.5
million ounces of gold and 85.4 million ounces of silver reserves.
Expansion-focused drilling programs successfully added 1.7 million
and 113.4 million ounces of measured and indicated gold and silver
resources, respectively, and an additional 1.8 million and 31.9
million ounces of new inferred gold and silver resources,
respectively
- Resource conversions at Palmarejo and Wharf led to reserve
increases net of depletion – Successful infill drilling in the
Hidalgo Zone at Palmarejo drove reserve increases in gold and
silver of approximately 4% and 5%, respectively, in 2021. A roughly
18% increase in gold reserves at Wharf has added two years to its
mine life, further enhancing the overall return on investment from
the initial $99 million cash acquisition in 2015
- Significant high-grade resource increase at Silvertip –
Silver, zinc and lead measured and indicated resources increased
year-over-year by approximately 51%, 33% and 44%, respectively, at
the Silvertip property in British Columbia. Silver, zinc and lead
inferred resources grew by roughly 48%, 37% and 40%, respectively,
during the same period
- Updated reserves at Rochester support robust, 13-year
reserve-only mine life in the top mining jurisdiction in the
world – The Company raised its cut-off grade assumption to
reflect higher anticipated operating costs and updated gold and
silver recovery assumptions as part of its recently completed
re-baselined Rochester expansion project review
- Sterling and Crown properties in southern Nevada remain a
key area of focus in 2022 – Resources remain relatively
unchanged following a significant lag in assay results due to assay
laboratory delays experienced throughout 2021. The Company is
beginning to receive assay results from the 2021 campaign with
encouraging drill results from C-Horst, SNA, Daisy and Secret Pass.
Infill and expansion drilling is planned to continue throughout
2022 with the goal of an updated resource at Crown zone, including
a maiden resource for the C-Horst discovery at year-end
“One of the largest ongoing multi-year exploration campaigns in
the precious metals sector continued to drive organic growth
throughout our portfolio of diversified North American assets,”
said Mitchell J. Krebs, Coeur’s President and Chief Executive
Officer. “Over the last five years, Coeur has invested
approximately $240 million in exploration capped off by our largest
program in Company history last year, totaling $71 million. This
elevated level of investment in exploration during the five-year
period – nearly 73% focused on resource expansion programs – has
dramatically increased our inventory of reserves and resources,
which we expect will translate into longer mine lives and
attractive returns in coming years.
“We plan to invest an additional $40 million Companywide of
exploration in 2022 – approximately half focused on infill drilling
and half on resource expansion drilling – in an effort to realize
further reserve and resource additions throughout Coeur’s
long-lived asset portfolio. These priorities include the follow-up
of recent exploration success targeting higher-grade gold zones at
West Rochester with the potential to be incorporated into future
mine plans for the expanded Rochester operation. In addition, we
will maintain an aggressive drilling program at Silvertip. With
continued exploration success, coupled with successful study work
in support of a larger scale operation, Silvertip holds the
potential to be Coeur’s next growth driver following the completion
of the Rochester expansion.”
Proven & Probable
Reserves
Measured & Indicated
Resources
Inferred Resources
2016
2021
% Change
2016
2021
% Change
2016
2021
% Change
Gold (M oz)
2.5
3.1
22%
1.7
3.4
103%
1.0
2.7
174%
Silver (M oz)
152.9
238.2
56%
171.6
285.0
66%
59.3
91.2
54%
Zinc (M lbs)
-
296.1
NA
-
589.4
NA
-
422.3
NA Lead (M lbs)
-
193.2
NA
-
312.6
NA
-
200.7
NA
Note: Companywide five-year cumulative
gold and silver production totaled 1.8 million and 56.4 million
ounces, respectively.
Coeur’s gold, zinc, and lead price assumptions for year-end 2021
reserves remained unchanged from a year ago at $1,400 per ounce,
$1.15 per pound and $0.95 per pound, respectively. The Company
increased its silver price assumption for year-end 2021 reserves
from $17.00 per ounce to $20.00 per ounce.
About Coeur Coeur Mining, Inc. is a U.S.-based,
well-diversified, growing precious metals producer with four
wholly-owned operations: the Palmarejo gold-silver complex in
Mexico, the Rochester silver-gold mine in Nevada, the Kensington
gold mine in Alaska and the Wharf gold mine in South Dakota. In
addition, the Company wholly-owns the Silvertip silver-zinc-lead
mine in British Columbia and has interests in several precious
metals exploration projects throughout North America.
Cautionary Statements This news release contains
forward-looking statements within the meaning of securities
legislation in the United States and Canada, including statements
regarding exploration efforts and plans, exploration expenditures,
growth, mine lives, returns, grade, mine expansion and development
plans, and resource delineation, expansion, and upgrade or
conversion. Such forward-looking statements involve known and
unknown risks, uncertainties and other factors which may cause
Coeur’s actual results, performance or achievements to be
materially different from any future results, performance or
achievements expressed or implied by the forward-looking
statements. Such factors include, among others, the risk that
anticipated additions or upgrades to reserves and resources are not
attained, the risk that planned drilling programs may be curtailed
or canceled due to budget constraints or other reasons, the risks
and hazards inherent in the mining business (including risks
inherent in developing large-scale mining projects, environmental
hazards, industrial accidents, weather or geologically related
conditions), changes in the market prices of gold, silver, zinc and
lead and a sustained lower price environment, the uncertainties
inherent in Coeur’s production, exploratory and developmental
activities, including risks relating to permitting and regulatory
delays (including the impact of government shutdowns), ground
conditions, grade and recovery variability, any future labor
disputes or work stoppages, the uncertainties inherent in the
estimation of mineral reserves, the potential effects of the
COVID-19 pandemic, including impacts to the availability of our
workforce, continued access to financing sources, government orders
that may require temporary suspension of operations at one or more
of our sites and effects on our suppliers or the refiners and
smelters to whom the Company markets its production, changes that
could result from Coeur’s future acquisition of new mining
properties or businesses, the loss of any third-party smelter to
which Coeur markets its production, the effects of environmental
and other governmental regulations, the risks inherent in the
ownership or operation of or investment in mining properties or
businesses in foreign countries, Coeur’s ability to raise
additional financing necessary to conduct its business, make
payments or refinance its debt, as well as other uncertainties and
risk factors set out in filings made from time to time with the
United States Securities and Exchange Commission, and the Canadian
securities regulators, including, without limitation, Coeur’s most
recent report on Form 10-K. Actual results, developments and
timetables could vary significantly from the estimates presented.
Readers are cautioned not to put undue reliance on forward-looking
statements. Coeur disclaims any intent or obligation to update
publicly such forward-looking statements, whether as a result of
new information, future events or otherwise. Additionally, Coeur
undertakes no obligation to comment on analyses, expectations or
statements made by third parties in respect of Coeur, its financial
or operating results or its securities.
The scientific and technical information concerning our mineral
projects in this news release have been reviewed and approved by a
“qualified person” under S-K 1300, namely our Senior Director,
Technical Services, Christopher Pascoe. For a description of the
key assumptions, parameters and methods used to estimate mineral
reserves and mineral resources for Coeur’s material properties
included in this news release, as well as data verification
procedures and a general discussion of the extent to which the
estimates may be affected by any known environmental, permitting,
legal, title, taxation, sociopolitical, marketing or other relevant
factors, please review the Technical Report Summaries for each of
the Company’s material properties which are available at
www.sec.gov.
Notes
The potential quantity and grade for the deposits described
herein are conceptual in nature. There is insufficient exploratory
work to define a mineral resource and it is uncertain if further
exploration will result in the applicable target being delineated
as a mineral resource.
- 2021 reserves and resources were determined in accordance with
Item 1300 of SEC Regulation S-K. Reserves and resources for prior
periods were determined in accordance with Canadian National
Instrument 43-101. Both sets of reporting standards have similar
goals in terms of conveying an appropriate level of confidence in
the disclosures being reported, but the standards embody slightly
different approaches and definitions.
- Gold equivalence assumes gold-to-silver, -lead, -zinc ratios of
1:60, 1:1,200 and 1:1,000, respectively.
2021 Year-End Proven and Probable
Reserves
Grade
Contained
Gold
Silver
Zinc
Lead
Gold
Silver
Zinc
Lead
Short tons
(oz/t)
(oz/t)
(%)
(%)
(oz)
(oz)
(lbs)
(lbs)
PROVEN RESERVES Palmarejo
3,754,000
0.066
4.39
-
-
247,000
16,480,000
-
-
Rochester
386,008,000
0.003
0.39
-
-
998,000
149,652,000
-
-
Kensington
656,000
0.191
-
-
-
125,000
-
-
-
Wharf
27,976,000
0.022
-
-
-
621,000
-
-
-
Silvertip
186,000
-
12.01
10.14%
8.53%
-
2,233,000
37,647,000
31,656,000
Total
418,580,000
0.005
0.40
1,991,000
168,365,000
37,647,000
31,656,000
PROBABLE RESERVES Palmarejo
12,139,000
0.052
3.78
-
-
637,000
45,875,000
-
-
Rochester
31,769,000
0.003
0.36
-
-
82,000
11,593,000
-
-
Kensington
690,000
0.197
-
-
-
136,000
-
-
-
Wharf
8,306,000
0.028
-
-
-
231,000
-
-
-
Silvertip
1,618,000
-
7.67
7.98%
4.99%
-
12,403,000
258,418,000
161,569,000
Total
54,522,000
0.020
1.28
1,086,000
69,871,000
258,418,000
161,569,000
PROVEN AND PROBABLE RESERVES Palmarejo
15,893,000
0.056
3.92
-
-
884,000
62,355,000
-
-
Rochester
417,777,000
0.003
0.39
-
-
1,080,000
161,245,000
-
-
Kensington
1,346,000
0.194
-
-
-
261,000
-
-
-
Wharf
36,283,000
0.023
-
-
-
852,000
-
-
-
Silvertip
1,804,000
-
8.11
8.21%
5.36%
-
14,636,000
296,065,000
193,225,000
Total
473,102,000
0.007
0.50
3,077,000
238,236,000
296,065,000
193,225,000
Notes to above Mineral Reserves:
- The Mineral Reserve estimates are current as of December 31,
2021 and are reported using the definitions in Item 1300 of
Regulation S–K (17 CFR Part 229) (SK1300) and were prepared by the
company’s technical staff.
- Assumed metal prices for 2021 Mineral Reserves were $20.00 per
ounce of silver, $1,400 per ounce of gold, $1.15 per pound of zinc,
$0.95 per pound of lead.
- Palmarejo Mineral Reserve estimates use the following key input
parameters: Assumption of conventional longhole underground mining;
reported above a variable gold equivalent cut-off grade that ranges
from 1.94–2.51 g/t AuEq and an incremental development cut-off
grade of 1.08 g/t AuEq; metallurgical recovery assumption of 93.1%
for gold and 81.9% for silver; mining dilution assumes 1 meter of
hanging wall waste dilution; mining loss of 5% was applied;
variable mining costs that range from US$36.01–US$41.75/tonne,
surface haulage costs of US$3.52/t, process costs of
US$27.29/tonne, general and administrative costs of US$11.00/tonne,
and surface/auxiliary support costs of US$3.19/tonne. Excludes the
impact of the Franco-Nevada gold stream agreement at Palmarejo in
calculation of Mineral Reserves.
- Rochester Mineral Reserve estimates are tabulated within a
confining pit shell and use the following input parameters:
Rochester oxide recovery Au = 85% and Ag = 59%; Nevada Packard
oxide recovery Au = 95% and Ag = 61%; with a net smelter return
cutoff of $2.55/st oxide and US$2.65/st sulfide, where the NSR is
calculated as resource net smelter return (NSR) = silver grade
(oz/ton) * silver recovery (%) * silver price ($/oz) - refining
cost ($/oz) + gold grade (oz/ton) * gold recovery (%) * gold price
($/oz) - refining cost ($/oz); variable pit slope angles that
approximately average 43º over the life-of-mine.
- Kensington Mineral Reserve estimates use the following key
input parameters: assumption of conventional underground mining;
gold price of $1400/oz; reported above a gold cut-off grade of
0.143-0.201 oz/st Au; metallurgical recovery assumption of 95%;
gold payability of 97.5%; mining dilution varies from 15-23%;
mining loss of 5% was applied; variable mining costs that range
from US$90.91–150.73/ton mined; process costs of US$46.93/ton
processed; general and administrative costs of US$38.83/ton
processed; and concentrate refining and shipping costs of
US$60.00/oz sold.
- Wharf Mineral Reserve estimate uses the following key input
parameters: assumption of conventional open pit mining; reported
above a gold cut-off grade of 0.010 oz/ton Au; metallurgical
recovery assumption of 80%; royalty burden of US$56/oz Au; pit
slope angles that vary from 34–50º; mining costs of US$2.15/ton
mined, rehandle costs of US$1.65/ton rehandled, process costs of
US$10.34/ton processed (includes general and administrative
costs).
- Silvertip Underground Mineral Resource estimates are reported
using a net smelter return (“NSR”) cutoff of US$130-160/tonne.
Mineral Resources are reported insitu using the following
assumptions: The estimate use the following key input parameters:
lead recovery of 87-88%, zinc recovery of 81-82% and silver
recovery of 88-89 %. Lead concentrate grade of 51-53%; zinc
concentrate grade of 48-50%; mining dilution varies from 5-25%;
mining loss of 5% was applied; mining costs of US$68.77/tonne;
processing costs of US$58.20/tonne and US$46.49/tonne, where the
NSR ($/tonne) = tonnes x grade x metal prices x metallurgical
recoveries – royalties – TCRCs – transport costs over the life of
the mine.
- Rounding of short tons, grades, and troy ounces, as required by
reporting guidelines, may result in apparent differences between
tons, grades, and contained metal contents.
2021 Year-End Measured and Indicated
Resources
Grade
Contained
Gold
Silver
Zinc
Lead
Gold
Silver
Zinc
Lead
Short tons
(oz/t)
(oz/t)
(%)
(%)
(oz)
(oz)
(lbs)
(lbs)
MEASURED RESOURCES Palmarejo
3,696,000
0.053
3.89
-
-
195,000
14,373,000
-
-
Rochester
191,889,000
0.002
0.29
-
-
372,000
56,573,000
-
-
Kensington
2,860,000
0.231
-
-
-
660,000
-
-
-
Wharf
13,947,000
0.020
-
-
-
273,000
-
-
-
Silvertip
319,000
-
10.33
9.41%
6.57%
-
3,296,000
60,029,000
41,939,000
Lincoln Hill
4,642,000
0.012
0.34
-
-
58,000
1,592,000
-
-
La Preciosa
9,536,000
0.005
3.04
-
-
45,000
29,001,000
-
-
Total
226,890,000
0.007
0.46
1,603,000
104,834,000
60,029,000
41,939,000
INDICATED RESOURCES Palmarejo
17,377,000
0.049
3.41
-
-
852,000
59,340,000
-
-
Rochester
39,565,000
0.002
0.33
-
-
74,000
12,932,000
-
-
Kensington
1,263,000
0.256
-
-
-
323,000
-
-
-
Wharf
6,379,000
0.022
-
-
-
139,000
-
-
-
Silvertip
2,498,000
-
9.23
10.59%
5.42%
-
23,048,000
529,353,000
270,643,000
Lincoln Hill
27,668,000
0.011
0.31
-
-
306,000
8,655,000
-
-
La Preciosa
19,141,000
0.006
3.98
-
-
118,000
76,185,000
-
-
Total
113,891,000
0.016
1.58
1,812,000
180,160,000
529,353,000
270,643,000
MEASURED AND INDICATED RESOURCES Palmarejo
21,073,000
0.050
3.50
-
-
1,047,000
73,712,000
-
-
Rochester
231,454,000
0.002
0.30
-
-
446,000
69,505,000
-
-
Kensington
4,124,000
0.238
-
-
-
983,000
-
-
-
Wharf
20,326,000
0.020
-
-
-
412,000
-
-
-
Silvertip
2,817,000
-
9.35
10.46%
5.55%
-
26,344,000
589,382,000
312,582,000
Lincoln Hill
32,310,000
0.011
0.32
-
-
364,000
10,247,000
-
-
La Preciosa
28,677,000
0.006
3.67
-
-
163,000
105,186,000
-
-
Total
340,781,000
0.010
0.84
3,415,000
284,994,000
589,382,000
312,582,000
2021 Year-End Inferred
Resources
Grade
Contained
Gold
Silver
Zinc
Lead
Gold
Silver
Zinc
Lead
Short tons
(oz/t)
(oz/t)
(%)
(%)
(oz)
(oz)
(lbs)
(lbs)
INFERRED RESOURCES Palmarejo
4,713,000
0.052
3.70
-
-
246,000
17,453,000
-
-
Rochester
128,410,000
0.002
0.30
-
-
243,000
38,626,000
-
-
Kensington
1,915,000
0.238
-
-
-
455,000
-
-
-
Wharf
3,724,000
0.024
-
-
-
90,000
-
-
-
Silvertip
2,350,000
-
7.57
8.98%
4.27%
-
17,787,000
422,335,000
200,725,000
Lincoln Hill
22,952,000
0.011
0.36
-
-
255,000
8,163,000
-
-
Sterling
36,824,000
0.025
-
-
-
914,000
-
-
-
Wilco
25,736,000
0.021
0.13
-
-
531,000
3,346,000
-
-
La Preciosa
1,761,000
0.003
3.31
-
-
6,000
5,835,000
-
-
Total
228,385,000
0.012
0.40
2,740,000
91,210,000
422,335,000
200,725,000
Notes to above Mineral Resources:
- Mineral Resource estimates are reported exclusive of Mineral
Reserves, are current as of December 31, 2021, and are reported
using definitions in SK1300 on a 100% ownership basis. Mineral
Resource estimates were prepared by the Company’s technical
staff.
- Assumed metal prices for 2021 estimated Mineral Resources were
$22.00 per ounce of silver, $1,700 per ounce of gold, $1.30 per
pound of zinc, $1.00 per pound of lead, unless otherwise
noted.
- Palmarejo Mineral Resource estimates use the following key
input parameters: Assumption of conventional longhole underground
mining; reported above a variable gold equivalent cut-off grade
that ranges from 1.59-2.21 g/t AuEq; metallurgical recovery
assumption of 93.1% for gold and 81.9% for silver; variable mining
costs that range from US$36.01–US$41.75/t, surface haulage costs of
US$3.52/tonne, process costs of US$27.29/tonne, general and
administrative costs of US$11.00/tonne, and surface/auxiliary
support costs of US$3.19/tonne. Excludes the impact of the
Franco-Nevada gold stream agreement at Palmarejo in calculation of
Mineral Resources.
- Kensington Mineral Resource estimates use the following key
input parameters: assumption of conventional longhole underground
mining; reported above a variable gold cut-off grade that ranges
from 0.116–0.164 oz/ton Au; metallurgical recovery assumption of
95%; gold payability of 97.5%, variable mining costs that range
from US$90.91–150.73/ton mined, process costs of US$46.93/ton
processed, general and administrative costs of US$38.83/ton
processed. and concentrate refining and shipping costs of
US$60.00/oz sold.
- Wharf Mineral Resource estimate uses the following key input
parameters: assumption of conventional open pit mining; reported
above a gold cut-off grade of 0.010 oz/ton Au; metallurgical
recovery assumption of 78.7% across all rock types; royalty burden
of US$56/oz Au; pit slope angles that vary from 34–50º; mining
costs of $2.15/ton mined, rehandle costs of US$1.65/ton rehandled,
process costs of US$10.34/ton processed (includes general and
administrative costs).
- Rochester Mineral Resource estimates are tabulated within
confining pit shells that uses the following input parameters:
oxide gold recovery of 77.7%-93.7% and silver recovery with range
of 59%-61%; sulfide gold recovery range of 15.2%-77.7% and silver
recovery with range of 0.0%-59% with a net smelter return cutoff of
US$2.55–US$3.70/ton oxide and US$2.65/ton sulfide, where the NSR is
calculated as resource net smelter return (NSR) = silver grade
(oz/ton) * silver recovery (%) * silver price ($/oz) - refining
cost ($/oz) + gold grade (oz/ton) * gold recovery (%) * gold price
($/oz) - refining cost ($/oz); and variable pit slope angles that
approximately average 43º over the life-of-mine.
- Silvertip Underground Mineral Resource estimates are reported
using a net smelter return (“NSR”) cutoff of US$130/tonne. Mineral
Resources are reported insitu using the following assumptions: The
estimate use the following key input parameters: lead recovery of
87-88%, zinc recovery of 81-82% and silver recovery of 88-89 %.
Lead concentrate grade of 51-53%; zinc concentrate grade of 48-50%;
mining costs of US$68.77/tonne; processing costs of US$58.20/tonne
and US$46.49/tonne, where the NSR ($/tonne) = tonnes x grade x
metal prices x metallurgical recoveries – royalties – TCRCs –
transport costs over the life of the mine.
- Sterling Open Pit Mineral Resource estimates are reported
in-situ and are contained within a confining pit shell and use the
following key input parameters: reported above a gold cutoff of
0.007 ounces per ton; gold recoveries of 75-80%; mining costs of
US$2.16/ton; process costs of US$2.70/ton; G&A costs of
$1.00/ton; variable pit slope angles of 39-52º over the
life-of-mine.
- La Preciosa Open Pit Mineral Resource estimate is reported
using a net smelter return (“NSR”) cutoff of US$23/tonne and
Underground Mineral Resources are reported using a NSR cut-off of
$71/tonne. Mineral Resources are reported in-situ and contained
within a conceptual measured, indicated and inferred optimized pit
shell or conceptual underground mining shapes using the following
assumptions: silver price of US$20/oz, gold price of US$1,400/oz.
Average silver and gold recovery are 82% and 69%, respectively.
Open pit mining cost is US$1.85/tonne, underground mining cost is
US$47.96/tonne, processing cost is US$17.53/tonne and G&A cost
is US$5.54/tonne. Mineral resources include hanging and footwall
dilution, and typical mining recovery is estimated to be 95%. The
technical and economic parameters are those that were used in the
2017 Resource Estimation. Based on the QPs review of the estimate,
there would be no material change to the Mineral Resource if a gold
price of US$1,700/oz, a silver price of US$22/oz or economic
parameters were updated. Therefore the 2017 Mineral Resource report
is considered current and is presented unchanged.
- Lincoln Hill Open Pit Mineral Resource estimate is reported
in-situ and are contained within a confining pit shell and use the
following key input parameters: reported above an oxide gold
equivalent cutoff of 0.15 ounces per ton and 0.20 oz ounces per ton
assuming a silver to gold ratio of 60:1; gold recoveries of 64%;
silver recoveries of 59%; mining costs of US$3.10/ton; process
costs of US$3.60/ton; general and administrative costs of $1.50/ton
processed; average pit slope angles of 45º over the life-of-mine.
The technical and economic parameters are those that were used in
the 2018 Resource Estimation. Based on the QPs review of the
estimate, there would be no material change to the Mineral Resource
if a gold price of US$1,700/oz, a silver price of US$22/oz or
economic parameters were updated. Therefore the 2018 Mineral
Resource is considered current and is presented unchanged.
- Wilco Open Pit Mineral Resource estimates are reported using an
equivalent gold cutoff of 0.20 ounces per ton assuming a silver to
gold ratio of 60:1. Resources are reported in-situ and contained
withed a conceptual measured, indicated and inferred optimized pit
shell. Silver price of US$20/oz, gold price of US$1,400/oz. Average
oxide and sulfide gold recovery is 70%, average carbonaceous gold
recovery is 50%. Average oxide and sulfide gold recovery is 60%.
Average carbonaceous silver recovery is 50%. Open pit mining cost
is US$1.50/ton, processing and processing and G&A cost is
US$5.46/ton; average pit slope angles of 50º. The technical and
economic parameters are those that were used in the 2018 Resource
Estimation. Based on the QPs review of the estimate, there would be
no material change to the Mineral Resource if a gold price of
US$1,700/oz, a silver price of US$22/oz or economic parameters were
updated. Therefore the 2018 Mineral Resource report is considered
current and is presented unchanged.
- Rounding of short tons, grades, and troy ounces, as required by
reporting guidelines, may result in apparent differences between
tons, grades, and contained metal contents.
Conversion Table
1 short ton
=
0.907185 metric tons
1 troy ounce
=
31.10348 grams
View source
version on businesswire.com: https://www.businesswire.com/news/home/20220216005412/en/
For Additional Information Coeur Mining, Inc. 104 S.
Michigan Avenue, Suite 900 Chicago, Illinois 60603 Attention: Jeff
Wilhoit, Director, Investor Relations Phone: (312) 489-5800
www.coeur.com
Coeur Mining (NYSE:CDE)
Historical Stock Chart
From May 2024 to Jun 2024
Coeur Mining (NYSE:CDE)
Historical Stock Chart
From Jun 2023 to Jun 2024