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Coeur Mining Provides Silvertip Exploration Update

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Positive results include 6.0 meters (19.7 feet) at 925.7 g/t (27.0
oz/t) silver, 16.0% zinc and 15.2% lead, or (2,076.9 g/t (60.6 oz/t) AgEq
1)
in Discovery Zone

Significant zones of mineralization intercepted, demonstrating strong
potential for future resource growth

Coeur Mining, Inc. ("Coeur" or the "Company") (NYSE:CDE) today provided
an update on the 44,500-meter (146,000-foot) drilling program at its
100%-owned Silvertip operation located in northern British Columbia.
This program has been primarily focused on infill drilling to support
ongoing mine planning efforts and has successfully discovered several
new mineralized zones. Given the success of this initial program, the
Company has approved and commenced a US$4 million second phase focused
on expanding resources and testing prospective targets located on the
mine's 93,000-acre (37,650 hectare) land package.

This press release features multimedia. View the full release here:
https://www.businesswire.com/news/home/20180726005206/en/

Silvertip: Plan View of Expanded Resource Interpretation (Graphic: Business Wire)

Silvertip: Plan View of Expanded Resource Interpretation (Graphic: Business Wire)

"Results from exploration at Silvertip during the first half of 2018
have demonstrated both the quality of the known resource and the strong
potential for significant mine life extensions," said Mitchell J. Krebs,
Coeur's President and Chief Executive Officer. "Drilling targeted three
zones with a particular emphasis on upgrading resources to reserves in
the Central Zone, where results also confirmed the continuity of
mineralization in zones previously thought to be discrete. At the Silver
Creek and Discovery zones, both close to existing underground
infrastructure, drilling has successfully delineated and expanded the
resource through the identification of newly discovered mineralized
zones and feeder structures. We look forward to continued exploration
success during the program's second phase."

Select highlights are included below and in the Company's presentation
materials available on its website at www.coeur.com.
Please see "Cautionary Statements" for additional information regarding
drill results. For a complete table of all drill results at Silvertip,
please refer to the following link: http://www.coeur.com/_resources/pdfs/180725_SILVERTIP_Exploration_PR_Appendix_v2.pdf

Highlights

  • First phase of 2018 drill program completed ahead of schedule and
    under budget
    – Since commencing in December 2017, six rigs have
    drilled over 44,500 meters (146,000 feet) at a total capitalized cost
    of US$9.2 million. This compares to a budgeted program of US$10
    million to drill 30,000 meters (98,000 feet). Results from Silvertip's
    drilling program received through early July are expected to support
    an updated resource model with a maiden reserve estimate, both of
    which are expected to be included in an updated technical report later
    this year.
  • Three zones were tested – Silver Creek, Central and Discovery – and
    each has exceeded grade and thickness expectations.
    • Drilling confirms continuity and suggests greater mineralized
      thicknesses at Central Zone
      – Prior to drilling, our modeling
      was based on limited drill data and depicted discrete pods of
      mineralization in the Central Zone. However, our new infill
      drilling now demonstrates these pods are part of thicker, more
      continuous manto horizons. Significant intercepts in the zone
      include hole CEN18-162-499-002, which returned 6.3 meters (20.7
      feet) at 845.3 grams per tonne ("g/t") (24.7 ounces per ton
      ("oz/t")) silver, 10.9% zinc and 15.3% lead, or 1,788.6 g/t (52.2
      oz/t) in silver equivalent1 ("AgEq") terms.
      Mineralization at Central Zone is near existing underground
      infrastructure and remains open to the north, south and at depth.
    • Surface drilling at Discovery Zone intercepts substantial new
      mineralization
      – Located immediately east of Central Zone, the
      new drilling has intercepted several zones of previously
      undiscovered mineralization as well as multiple, stacked, manto
      horizons, for example hole DSC18-Pad2-004 cut:
      • 11.4 meters (37.4 feet) at 193.3 g/t (5.6 oz/t) silver, 18.3%
        zinc and 3.2% lead, or 1,039.5 g/t (30.3 oz/t) AgEq1;
      • 2.7 meters (8.9 feet) at 137.5 g/t (4.0 oz/t) silver, 10.9%
        zinc and 2.0% lead, or 644.4 g/t (18.8 oz/t) AgEq1;
      • 3.3 meters (10.8 feet) at 851.2 g/t (24.8 oz/t) silver, 21.0%
        zinc and 14.6% lead, or 2,183.8 g/t (63.7 oz/t) AgEq1;
        and,
      • 6.0 meters (19.7 feet) at 925.7 g/t (27.0 oz/t) silver, 16.0%
        zinc and 15.2% lead, or 2,076.9 g/t (60.6 oz/t) AgEq1.

Discovery Zone remains open to the north, south, east and at depth.

  • Drilling at Silver Creek Zone was successful in delineating
    multiple stacked manto horizons and previously unknown vertical
    feeders
    – Drilling has delineated previously unrecognized vertical
    feeders paralleling the Camp Creek Fault as well as areas with
    multiple stacked manto horizons in the Silver Creek Zone. These zones
    of mineralization are adjacent to existing mine workings and remain
    open to the south, southeast and at depth. An example of the stacked
    mantos at Silver Creek include hole SCZ18-158-479-006, which cut:
    • 2.9 meters (9.5 feet) at 160.4 g/t (4.7 oz/t) silver, 4.5% zinc
      and 3.1% lead, or 422.7 g/t (12.3 oz/t) AgEq1; and,
    • 3.8 meters (12.5 feet) at 905.5 g/t (26.4 oz/t) silver, 29.2% zinc
      and 16.5% lead, or 2,633.5 g/t (76.8 oz/t) AgEq1.

Silvertip

Coeur completed its acquisition of the Silvertip mine in late 2017.
Since then, the Company's exploration focus has been on resource
definition and conversion within three previously known zones, Silver
Creek, Central and Discovery, with up to six diamond core drill rigs
active. Coeur's new drill results have indicated an expanded and more
continuous resource model as illustrated in the Silvertip plan view map
shown above.

At Central Zone, up to four surface and underground rigs completed
approximately 17,700 meters (58,000 feet) of drilling in 103 holes.
Initial modeling portrayed the Central Zone as a discontinuous zone
composed of discrete pods of manto-style mineralization due to
insufficient drilling data. New infill drill holes have discovered
continuity between the discrete pods and assay results have indicated
metal grades exceeding prior expectations. The newly modeled thickness
within these manto zones may be amenable to more efficient high-volume
mining methods. Resource growth from Central Zone represents short- and
mid-term opportunities to add additional mining areas located near
existing infrastructure.

The cross-sectional view (shown above) of a Central Zone intercept
illustrates how drilling has indicated thicker resource mineralization
than previously modeled.

At Discovery Zone, drilling activity targeted resource infill and
expansion with up to two surface rigs drilling a combined 6,700 meters
(22,000 feet) in 22 holes. Several mineralized zones with thicknesses
exceeding 14 meters (approximately 45 feet) were intercepted with grades
comparable to, or exceeding, those reported historically. Drilling at
Discovery has also demonstrated the possible presence of multiple
stacked manto horizons forming a thicker ore zone, which has the
potential to increase tonnage and mine-ability. Because of the success
in the first phase of drilling this zone, the Company plans to continue
here with up to two surface drill rigs in the second half of 2018 with
the goal of expanding the resource to the north, south, and down-dip to
the east.

At Silver Creek, up to two surface rigs completed 4,100 meters (13,500
feet) of drilling in 14 holes within the main manto horizon. This
drilling has demonstrated the potential for resource expansion along the
north-south Camp Creek Fault, where multiple mineralized stacked manto
horizons were intercepted. Underground drilling at Silver Creek targeted
vertically-oriented feeders with up to two underground rigs completing
15,800 meters (51,800 feet) in 121 holes. The program successfully
discovered two new feeder systems in the area. Surface drilling later
this year will continue to test mineralized manto and feeder zones along
the Camp Creek Fault. Due to their geometry, these new mineralized
vertical feeder structures may be amenable to long hole stoping, which
may provide for more efficient and cost-effective mining than
drift-and-fill in the original mine plan.

The Company approved a second phase of Silvertip's exploration program,
which commenced in early July, with a budget of approximately US$4
million, consisting of US$1.5 million of capitalized resource infill
drilling, and US$2.5 million of expensed resource expansion drilling.
The Company expects to complete a total of at least 18,000 meters
(59,000 feet) of surface drilling by year-end.

About Coeur

Coeur Mining, Inc. is a well-diversified, growing precious metals
producer with five mines in North America. Coeur produces from its
wholly-owned operations: the Palmarejo silver-gold complex in Mexico,
the Silvertip silver-zinc-lead mine in British Columbia, 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 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, drill results, resource conversion and upgrade, mine life
extension, drilling, grade, thickness, mining volume and timing for
publication of a technical report. 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 resource
conversion and upgrade 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 and silver 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, ground conditions,
grade variability, any future labor disputes or work stoppages, the
uncertainties inherent in the estimation of gold and silver reserves,
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 silver and gold, 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 reports on Form 10-K or Form 10-Q. 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.

Christopher Pascoe, Coeur's Director, Technical Services and a qualified
person under Canadian National Instrument 43-101, approved the
scientific and technical information concerning Coeur's mineral projects
in this news release. For a description of the key assumptions,
parameters and methods used to estimate mineral reserves and resources,
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, socio-political,
marketing or other relevant factors, Canadian investors should refer to
the Technical Reports for each of Coeur's properties as filed on SEDAR
at www.sedar.com.

Notes

  1. For purposes of silver equivalence, metals prices of US$20.00/oz
    silver, US$1.30/lb zinc and US$1.05/lb lead were used.
  2. 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.
  3. Analytical testing for drill core samples from Silvertip was completed
    by Bureau Veritas on location in Whitehorse, Yukon, Canada and
    Vancouver, British Columbia, Canada. Analyses for silver, zinc, and
    lead were completed by 4-acid digestion with an ICP-ES finish. Over
    limits were completed by gravimetric, peroxide fusion, and titration
    methods, respectively.

Silvertip 2017 Year-End Resources

     
Grade
Silver   Zinc   Lead
    Tonnes   Short tons   (g/t)   (oz/t)   (%)   (%)
Indicated Resources 2,349,000 2,589,000 352   10.26 9.41% 6.74%
Inferred Resources   460,000   507,000   343   9.89   9.81%   6.18%
 

Notes to Mineral Resource Estimates

  1. Effective December 31, 2017.
  2. CIM definitions were followed for mineral resources.
  3. Mineral resources are in addition to mineral reserves and do not have
    demonstrated economic viability. Inferred mineral resources are
    considered too speculative geologically to have the economic
    considerations applied to them that would enable them to be considered
    for estimation of mineral reserves, and there is no certainty that the
    inferred mineral resources will be realized.
  4. Cut-off grade of 200 g/t AgEq was used for the calculation of the
    resource.
  5. Rounding of tons and ounces, as required by reporting guidelines, may
    result in apparent differences between tons, grade, and contained
    metal content.
  6. As described above, the preliminary economic analysis set forth in
    this release is subject to obtaining an amended permit allowing for a
    mining rate of 1,000 tonnes per day on a year-round basis.

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