Coeur Mining, Inc. Exploration Drilling Update February ...

Notes:

1. Reported interval length is not always representative of the true thickness of the mineralized zone.

2. * Indicates that Estimated Thickness could not be determined.

3. Differences in drill thickness may result from rounding values. 4. Only drill holes with assays that have completely passed Coeur’s internal QA/QC protocol have been included in this table.

5. 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.

Coeur Mining, Inc.

Exploration Drilling Update

February 17th, 2021

Below are recent drill results from the ongoing expansion and infill programs at Kensington, Crown, and

Palmarejo. Please see the accompanying press release dated February 17th, 2021 available on

www.coeur.com.

Kensington, AK, USA – August 2020 through December 2020

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness Gold (oz/ton)

Big Lake Expansion

BLN20-X001 No Significant Intercepts



BLS20-X001 No Significant Intercepts



Johnson Expansion

JNW20-X002 No Significant Intercepts




Jualin Expansion

JU20-X011 No Significant Intercepts




JU20-X015 681.0 682.8 1.8 1.3 4.00

JU20-X016 685.9 687.3 1.4 1.4 3.99

JU20-X017 706.1 707.7 1.6 1.5 1.50

Raven Expansion

R20-X001 826.6 834.3 7.7 * 0.23

R20-X002 No Significant Intercepts

R20-X003 No Significant Intercepts

RN20-X001 No Significant Intercepts


Notes:









Raven Expansion



RN20-X005 835.9 836.9 1.0 0.8 1.91

RN20-X005 922.1 924.4 2.3 1.8 1.86


RS20-X001 No Significant Intercepts



RS20-X004 693.2 694.9 1.7 1.3 2.33


Elmira Expansion

EL20-0255-185-X01 No Significant Intercepts







EL20-0850-156-X02 1050.8 1052.5 1.7 * 1.15





EL20-0850-156-X07 518.7 520.6 1.9 1.5 1.55

EL20-0850-156-X07 617.6 619.0 1.4 1.1 1.80

EL20-0850-156-X07 666.4 673.8 7.4 6.4 0.66

EL20-0850-156-X09 464.4 469.1 4.7 3.9 0.42




EL20-0850-156-X13 763.5 764.8 1.3 1.1 2.41


EL20-0850-156-X15 1040.0 1041.3 1.3 1.1 5.45

EL20-0850-156-X16 512.9 514.0 1.1 1.0 1.31


Notes:









Eureka Expansion

EU20-2050-206-X02 285.0 294.3 9.3 * 0.90

EU20-2050-206-X03 230.9 243.6 12.7 11.6 0.24

EU20-2050-206-X04 No Significant Intercepts

EU20-2050-206-X05 185.0 193.7 8.7 7.9 0.19

EU20-2050-206-X06 308.2 309.3 1.1 * 1.47

EU20-2050-206-X06 323.8 348.0 24.2 21.0 0.21

EU20-2050-206-X07 234.8 250.5 15.7 9.4 0.45

EU20-2050-216-X01 215.0 221.0 6.0 2.5 0.67


EU20-2050-216-X03 236.2 253.0 16.8 * 0.98

EU20-2050-216-X04 0.0 3.5 3.5 * 0.39





EU20-2050-216-X09 212.4 214.2 1.8 * 0.84

EU20-2050-216-X09 251.0 253.5 2.5 * 1.53

EU20-2050-216-X10 0.0 3.2 3.2 * 1.84

EU20-2050-216-X10 280.3 290.6 10.3 7.3 1.41

EU20-2050-216-X11 367.0 371.2 4.2 * 0.74

EU20-2050-216-X11 387.8 395.7 7.9 * 0.75

EU20-2050-216-X12 319.9 332.0 12.1 * 0.31

Northern Belle Expansion

NB20-1710-218-X01 299.5 301.5 2.0 0.8 2.38

NB20-1710-218-X01 551.2 552.8 1.6 * 0.97

NB20-1710-218-X01 749.0 759.7 10.7 8.8 0.19

NB20-1710-218-X02 115.0 139.4 24.4 19.4 0.24

NB20-1710-218-X02 320.1 321.6 1.5 1.1 2.01

NB20-1710-218-X02 1554.0 1566.0 12.0 6.0 0.42

NB20-1710-218-X03 No Significant Intercepts

Elmira Infill EL20-0850-156-X18 No Significant Intercepts

EL20-0850-192-X02 564.0 566.0 2.0 2.0 1.38

EL20-0850-192-X02 580.3 583.2 2.9 2.6 1.47

EL20-0850-192-X03 552.4 556.6 4.2 3.9 2.11

Notes:









Elmira Infill EL20-0850-192-X06 No Significant Intercepts

Kensington Analytical Detail

1. Drill intercepts of assays are from full and half HQ core samples prepared at the Kensington

Mine, Juneau, AK, and at Bureau Veritas, Juneau, AK with final sample preparation to pulp and

analyses at Bureau Veritas, Vancouver, BC. Sample lengths ranged from 0.5 ft (0.15 m) to 16.6

ft (5.06 m). Samples weights ranged from 0.27 lbs (0.13 kg) to 35 lbs (16 kg).

2. Samples were analyzed by 1 oz (30 g) fire assay with atomic absorption finish for gold with a

>0.29 oz/ton (10 g/tonne) trigger for an additional fire assay with a gravimetric finish.

3. The QA-QC program includes the blind insertion of certified reference standards. Coarse and fine

blank material is both certified and uncertified. Duplicate samples were collected at the sampling

stage. In total, control samples represent approximately 20% of all samples sent to the

commercial laboratory.

4. Drill intercepts reported in this table have a minimum grade thickness of Bear, Cookhouse, 1.29

for Elmira, Eureka, and Kensington. Ophir, and Seward, with a minimum grade of 0.129 oz/ton

(4.42 g/tonne) gold by fire assay.

5. Drill intercepts reported in this table have a minimum grade thickness of 0.92 for Kensington

with a minimum grade of 0.23 oz/ton (7.9 g/tonne) gold by fire assay.

6. Drill intercepts reported in this table have a minimum grade thickness of 0.858 for Jualin and

Raven with a minimum grade of 0.143 oz/ton (4.90 g/tonne) gold by fire assay.

7. Maximum dilution in the intercepts is 3 ft (0.9 m) for Seward and Ophir, 4 ft (1m) for Jualin, 6 ft

(2m) for Kensington and Raven, and 10 ft (3.1m) for all other projects.

Notes:






Crown Block, NV, USA –November 2020 through December 2020




C-Horst Expansion CH20-014 565.0 790.0 225.0 * 0.05

CH20-014 810.0 830.0 20.0 * 0.04

CH20-014** 975.0 1025.0 50.0 * 0.02

CH20-014** 1225.0 1330.0 105.0 * 0.01

CH20-014** 1390.0 1445.0 55.0 * 0.02

CH20-018 675.0 750.0 75.0 * 0.03

CH20-018 775.0 825.0 50.0 * 0.01

CH20-019 665.0 890.0 225.0 * 0.02

CH20-021 525.0 1235.0 710.0 * 0.03

CH20-022 655.0 920.0 265.0 * 0.04

CH20-022 945.0 975.0 30.0 * 0.02

CH20-026 400.0 425.0 25.0 * 0.02

CH20-026 1235.0 1355.0 120.0 * 0.05

CH20-027 805.0 835.0 30.0 * 0.03

CH20-028 910.0 975.0 65.0 * 0.03

CH20-029 595.0 735.0 140.0 * 0.02

CH20-030 640.0 665.0 25.0 * 0.02

CH20-030 1200.0 1245.0 45.0 * 0.02

CH20-031 840.0 915.0 75.0 * 0.02

CH20-031 1480.0 1520.0 40.0 * 0.01

CH20-032 685.0 725.0 40.0 * 0.03

CH20-033 No Significant Intercepts


CH20-035 630.0 695.0 65.0 * 0.02


CH20-037 645.0 755.0 110.0 * 0.03

CH20-038 775.0 960.0 185.0 * 0.04

CH20-038 1320.0 1340.0 20.0 * 0.03

CH20-039 950.0 1005.0 55.0 * 0.03

CH20-039 1045.0 1130.0 85.0 * 0.02


CH20-042 655.0 785.0 130.0 * 0.02

CH20-043 570.0 600.0 30.0 * 0.10 **This portion of the drillhole result extends onto property for which Corvus Gold Inc. holds mining claims.

Notes:









C-Horst Expansion CH20-043 640.0 870.0 230.0 * 0.03

CH20-043 1035.0 1115.0 80.0 * 0.02

CH20-043 1130.0 1220.0 90.0 * 0.02

CH20-043 1245.0 1310.0 65.0 * 0.01

CH20-045 825.0 965.0 140.0 * 0.02


C-Horst Infill CH20-C001 529.0 614.0 85.0 * 0.03

CH20-C001 629.0 711.4 82.4 * 0.03

CH20-C001 726.0 816.1 90.1 * 0.04

CH20-C001 818.1 978.0 159.9 * 0.02

CH20-C002 620.5 648.0 27.5 * 0.03

CH20-C002 703.0 762.0 59.0 * 0.01

CH20-C002 878.0 951.0 73.0 * 0.02

CH20-C003 545.0 909.0 364.0 * 0.03

Daisy Infill D20-C002 453.0 583.0 130.0 * 0.03

D20-C002 647.9 658.0 10.1 * 0.08

D20-C005 368.0 458.0 90.0 * 0.02

D20-C005 493.0 518.0 25.0 * 0.16

D20-C009 No Significant Intercepts

SNA Infill SNA20-C001 No Significant Intercepts

SNA20-C002 212.0 237.0 25.0 * 0.06

SNA20-C003 88.5 148.0 59.5 * 0.04

SNA20-C003 201.5 260.0 58.5 * 0.07

Notes:






Crown Block Analytical Detail

1. Reverse circulation samples were taken on 5-foot (2m) intervals for all samples. Samples weighed

0.24 lbs (0.11 kg) to 62 lbs (28 kg). All samples were submitted to Bureau Veritas in Sparks, NV

or to American Assay Labs for sample preparation. Samples were dried, crushed, and pulverized.

Pulps were sent to Bureau Veritas in Vancouver, BC, CA for analysis, or analyzed on site at

American Assay Labs in Sparks, NV.

2. All gold assays were initially obtained by standard 1 oz (30 g) fire assay with an ICP finish. Samples

with gold values greater than 0.0009 oz/ton (0.03 g/ton) gold were additionally assayed by a cold

cyanide shake with an atomic absorption finish. Samples with gold values greater than 0.297 oz/ton

(10 g/tonne) were assayed by 1 oz (30g) fire assay with gravimetric finish.

3. The QAQC program includes the blind insertion of certified reference standards. Coarse and fine

blank material is both certified and uncertified. Duplicate samples were collected at the sampling

stage. In total, control samples represent approximately 20% of all samples sent to the commercial

laboratory.

4. Drill intercepts reported in this table have a minimum grade thickness of 0.4, with a minimum grade

of 0.01 oz/ton (0.34 g/tonne) gold by fire assay.

Notes:






Palmarejo, CHH, MX – August 2020 through December 2020



Thickness

Gold

(oz/ton)

Silver

(oz/ton)

Hidalgo Expansion

HGDH_026 1222.1 1247.4 25.3 21.0 0.14 18.2

HGDH_027 534.8 554.8 20.0 12.1 0.01 4.7

HGDH_027 730.3 745.9 15.6 12.8 0.02 2.9

HGDH_028 1743.8 1774.3 30.5 22.0 0.07 7.0

HGDH_028 1790.3 1827.3 37.0 29.2 0.04 3.8

HGDH_028 1829.1 1875.6 46.5 36.7 0.18 12.6

HGDH_028 1953.4 1965.5 12.1 11.5 0.05 3.7

HGDH_029 No Significant Intercepts

HGDH_030 1385.5 1409.6 24.1 20.0 0.08 3.9

HGDH_031 949.5 963.3 13.9 8.5 0.05 6.8

HGDH_031 1700.7 1704.4 3.7 * 0.21 7.3

HGDH_031 1834.3 1885.2 50.9 43.0 0.05 4.0

HGDH_031 1936.7 1971.1 34.4 27.9 0.06 4.6

HGDH_031 2003.9 2016.1 12.1 10.5 0.07 6.6

HGDH_031 2030.0 2064.8 34.8 30.5 0.03 6.1

HGDH_032 727.7 731.5 3.8 2.0 0.20 22.6

HGDH_032 830.5 884.8 54.3 42.0 0.31 12.4

HGDH_032 1247.0 1290.7 43.7 32.8 0.08 7.7

HGDH_033 594.6 600.7 6.1 4.3 0.06 13.5

HGDH_033 871.1 882.7 11.7 3.0 0.18 12.5

HGDH_034 1331.0 1341.9 10.8 7.9 0.09 4.9

HGDH_035 1024.5 1035.8 11.3 10.2 0.59 77.2

HGDH_035 1893.4 1923.9 30.5 23.0 0.14 10.4

HGDH_035 1967.7 2008.8 41.2 34.8 0.07 4.7

HGDH_036 680.1 684.4 4.2 3.6 0.10 13.1

HGDH_036 800.5 803.0 2.5 1.6 0.28 15.4

HGDH_036 865.0 898.3 33.3 24.9 0.20 10.6

HGDH_036 1338.1 1356.9 18.9 13.8 0.01 4.0

HGDH_037 1950.3 1975.4 25.2 19.7 0.27 16.6

HGDH_037 2012.8 2029.0 16.2 14.8 0.03 3.8

HGDH_038 605.8 611.1 5.3 * 0.12 21.9

HGDH_039 1230.0 1238.8 8.8 7.2 0.07 8.6

HGDH_039 1267.0 1272.0 4.9 3.9 0.10 8.0

Notes:








Thickness

Gold

(oz/ton)

Silver

(oz/ton)

Hidalgo Expansion

HGDH_039 1346.5 1348.2 1.6 1.3 0.57 40.4



HGDH_042 1786.4 1808.4 22.0 16.1 0.17 13.2

HGDH_042 1891.1 1908.5 17.5 15.8 0.06 3.4

HGDH_042 1966.2 1990.8 24.6 22.3 0.04 4.6

HGDH_042 1998.0 2012.6 14.6 12.8 0.04 5.1

HGDH_042 2023.9 2039.0 15.1 12.5 0.05 8.7

HGDH_043 1126.5 1149.3 22.7 19.4 0.03 3.9

HGDH_044 667.6 686.0 18.3 15.4 0.04 3.3

HGDH_045 910.4 914.9 4.4 3.3 0.13 19.1

HGDH_045 950.3 959.4 9.2 5.9 0.06 7.2

HGDH_045 1983.2 1991.9 8.7 7.6 0.15 10.0

VIDH_147 1606.0 1632.9 26.9 22.3 0.28 18.7

VIDH_150 1657.1 1694.5 37.4 28.9 0.03 2.8

VIDH_150B 1661.8 1696.5 34.7 24.9 0.05 2.9

VIDH_150B 1787.9 1818.7 30.8 28.9 0.04 2.7

VIDH_152 1675.7 1684.9 9.2 7.9 0.20 5.5

Independencia Expansion

VIDH_146 1883.2 1891.1 7.9 4.6 0.10 12.4

VIDH_148 No Significant Intercepts

VIDH_149 1946.5 1958.2 11.7 10.2 0.05 6.2

VIDH_151 2170.1 2185.0 14.9 8.5 0.09 5.3

VIDH_153 No Significant Intercepts

VIDH_154 2009.1 2024.9 15.8 10.2 0.21 10.4

VIDH_156 1748.7 1752.9 4.3 2.0 0.21 27.9

VIDH_156 1829.1 1834.7 5.6 3.0 1.72 17.5

VIDH_158 1788.2 1791.3 3.1 2.0 0.45 2.5

VIDH_159 1796.9 1803.0 6.1 3.6 0.08 16.8

Independencia Infill DC3-ICA-0223 259.7 272.2 12.5 10.8 0.05 3.2

DC3-ICA-0226 209.8 237.2 27.4 22.0 0.07 3.5

DC3-ICA-0242 No Significant Intercepts


Notes:








Thickness

Gold

(oz/ton)

Silver

(oz/ton)

Independencia Infill DC3-ICA-0245 No Significant Intercepts

DC3-ICA-0246 328.1 348.3 20.2 13.1 0.01 3.1

DC3-ICA-0247 313.4 322.8 9.4 8.2 0.04 4.3

DC3-ICA-0247 339.6 378.0 38.4 26.9 0.02 4.8



DC3-ICA-0250 445.9 453.6 7.7 5.6 0.16 10.5

DC3-ICA-0250 455.1 457.7 2.6 2.0 0.20 37.6

DC3-ICA-0250 459.0 466.5 7.6 6.6 0.10 23.0

DC3-ICA-0250 479.2 503.9 24.8 16.7 0.02 7.5


DC3-ICA-0252 394.0 406.7 12.7 10.5 0.01 4.5

La Bavisa Expansion

BVDH_056 No Significant Intercepts












BVDH_080 1591.4 1607.5 16.1 15.1 0.02 6.5

BVDH_081 1555.1 1568.6 13.5 9.8 0.02 4.3

BVDH_081 1569.9 1583.4 13.6 9.5 0.05 7.9

La Bavisa Infill BVDH_055 1661.4 1675.2 13.8 11.2 0.08 15.3





Notes:








Thickness

Gold

(oz/ton)

Silver

(oz/ton)

La Bavisa Infill BVDH_064 No Significant Intercepts

BVDH_066 1263.5 1269.0 5.5 4.6 0.02 12.5




BVDH_073 1504.6 1513.4 8.8 7.6 0.06 11.9

BVDH_075 1425.8 1433.7 8.0 5.6 0.05 8.8

BVDH_077 1466.5 1476.0 9.5 8.2 0.04 8.4

La Patria Infill LPDH_214 507.5 526.1 18.6 14.1 0.17 3.7

LPDH_215 498.0 503.8 5.8 3.6 0.40 7.0

LPDH_216 538.3 554.1 15.8 14.8 0.08 2.4

LPDH_217 No Significant Intercepts

LPDH_218 573.0 580.7 7.7 4.9 0.25 5.7

LPDH_219 597.1 621.2 24.1 14.1 0.19 1.3

LPDH_220 649.8 678.3 28.5 22.0 0.10 1.4


LPDH_224 555.1 574.5 19.4 14.8 0.07 0.7

LPDH_224 589.4 624.8 35.4 27.6 0.09 2.4

LPDH_225 472.4 490.6 18.2 10.8 0.20 1.4



LPDH_228 391.6 415.4 23.8 22.6 0.13 4.4


LPDH_230 374.0 389.0 15.0 11.8 0.15 5.4


LPDH_232 467.8 488.2 20.3 17.1 0.19 5.2

LPDH_233 625.4 655.0 29.6 17.7 0.06 0.6

LPDH_233 667.2 690.0 22.8 18.7 0.05 1.2

Notes:






Palmarejo Analytical Data

1. Samples intervals varied from approximately 1.6ft (0.5m) to 6.6ft (2.0m) in length and 1.5 lbs (0.69 kg) to

23 lbs (10 kg) in weight. All samples were submitted to either the ALS preparation facility in Chihuahua or

Guadalajara, where they were dried, crushed and pulverized. After preparation, approximately 8.80 ozs

(250g) of primary samples were sent to the ALS laboratory in Vancouver for analysis by multiple methods

depending on the metal and its content.

2. All gold assays were initially obtained by standard 1 oz (30g) fire assay with an ICP-AES finish. Samples

over 0.233 oz/ton (7.99 g/tonne) Au were re-analyzed by standard 1 oz (30g) fire assay with gravimetric

finish. All silver analyses reported were initially obtained by four acid digestion of the samples followed by

ICP analysis. All silver samples that returned an ICP-AES assay greater than 2.33 oz/ton (80 g/tonne) Ag

were assayed by a standard ore grade four acid digestion with an ICP finish.

3. The QA-QC program includes the blind insertion of certified and internally produced reference standards as

well as both coarse and fine blank samples and duplicate samples (at the crushing, pulverizing and analytical

stages). In total, control samples represent over 20% of all samples sent to the laboratory. Each quarter,

between 5-10% of original pulps, representing the full analytical ranges are selected at random and sent to

the Bureau Veritas laboratory in Vancouver for check analysis, using essentially identical methods. 10-15%

control samples are also added to the original pulps. Results are compared against the original results to

ensure acceptable levels of accuracy and precision.

4. Drill intercepts reported in this table have a minimum grade thickness of 9, with a minimum grade of 0.051

oz/ton (1.75 g/tonne) AuEq.

Coeur Mining, Inc. Exploration Drilling Update February ...

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