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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 September 9 th , 2021 Below are recent drill results from the ongoing expansion and infill programs at Silvertip, Kensington, Wharf and Palmarejo. Please see the accompanying press release dated September 9 th , 2021, available on www.coeur.com. Silvertip, BC, CA April 2021 through July 2021 Mineralized Intercepts (feet) Assays Hole From To Length Estimated Thickness Silver (oz/ton) Zinc (%) Lead (%) Southern Silver Expansion 65Z21-485-007-001 No Significant Intercepts 65Z21-485-007-002 No Significant Intercepts 65Z21-485-007-003 No Significant Intercepts 65Z21-485-007-004 No Significant Intercepts 65Z21-485-007-005 378.8 447.7 68.9 65.6 2.7 16.9 0.5 65Z21-485-007-008 289.6 325.6 36.0 19.4 9.8 14.5 6.0 65Z21-485-007-010 186.1 193.6 7.6 7.2 13.8 16.0 7.5 65Z21-485-360-027 632.9 639.5 6.6 * 9.3 12.9 6.0 65Z21-485-360-027 629.9 631.2 1.3 * 43.5 12.6 29.1 65Z21-485-360-028 655.6 663.4 7.8 4.9 16.6 29.8 10.5 65Z21-485-360-029 No Significant Intercepts 65Z21-485-360-030 No Significant Intercepts 65Z21-485-360-031 No Significant Intercepts 65Z21-485-DDS1-004 962.5 1001.4 39.0 27.6 2.6 14.1 1.1 65Z21-485-DDS1-004 1121.4 1140.3 18.8 * 7.8 9.5 4.9 65Z21-485-DDS1-007 No Significant Intercepts 65Z21-485-DDS1-008 341.5 366.8 25.3 18.0 1.9 14.1 0.1 65Z21-485-DDS1-011 No Significant Intercepts 65Z21-485-DDS1-012 No Significant Intercepts 65Z21-485-DDS1-014 No Significant Intercepts 65Z21-485-DDS1-015 584.1 640.7 56.6 35.4 13.0 19.4 7.5 65Z21-485-DDS1-015 782.8 818.4 35.6 17.1 18.0 7.7 12.0 65Z21-485-DDS1-015 515.1 551.6 36.5 25.9 3.8 7.3 1.8 65Z21-485-DDS1-016 No Significant Intercepts 65Z21-485-DDS1-017 852.8 859.2 6.4 4.6 2.9 18.8 0.3 65Z21-485-DDS1-017 454.4 478.3 24.0 6.9 2.7 10.7 1.2 65Z21-485-DDS1-018 No Significant Intercepts
17

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

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Page 1: Coeur Mining, Inc. Exploration Drilling Update September ...

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

September 9th, 2021

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

Wharf and Palmarejo. Please see the accompanying press release dated September 9th, 2021, available on

www.coeur.com.

Silvertip, BC, CA – April 2021 through July 2021

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness

Silver

(oz/ton)

Zinc

(%)

Lead

(%)

Southern Silver Expansion

65Z21-485-007-001 No Significant Intercepts

65Z21-485-007-002 No Significant Intercepts

65Z21-485-007-003 No Significant Intercepts

65Z21-485-007-004 No Significant Intercepts

65Z21-485-007-005 378.8 447.7 68.9 65.6 2.7 16.9 0.5

65Z21-485-007-008 289.6 325.6 36.0 19.4 9.8 14.5 6.0

65Z21-485-007-010 186.1 193.6 7.6 7.2 13.8 16.0 7.5

65Z21-485-360-027 632.9 639.5 6.6 * 9.3 12.9 6.0

65Z21-485-360-027 629.9 631.2 1.3 * 43.5 12.6 29.1

65Z21-485-360-028 655.6 663.4 7.8 4.9 16.6 29.8 10.5

65Z21-485-360-029 No Significant Intercepts

65Z21-485-360-030 No Significant Intercepts

65Z21-485-360-031 No Significant Intercepts

65Z21-485-DDS1-004 962.5 1001.4 39.0 27.6 2.6 14.1 1.1

65Z21-485-DDS1-004 1121.4 1140.3 18.8 * 7.8 9.5 4.9

65Z21-485-DDS1-007 No Significant Intercepts

65Z21-485-DDS1-008 341.5 366.8 25.3 18.0 1.9 14.1 0.1

65Z21-485-DDS1-011 No Significant Intercepts

65Z21-485-DDS1-012 No Significant Intercepts

65Z21-485-DDS1-014 No Significant Intercepts

65Z21-485-DDS1-015 584.1 640.7 56.6 35.4 13.0 19.4 7.5

65Z21-485-DDS1-015 782.8 818.4 35.6 17.1 18.0 7.7 12.0

65Z21-485-DDS1-015 515.1 551.6 36.5 25.9 3.8 7.3 1.8

65Z21-485-DDS1-016 No Significant Intercepts

65Z21-485-DDS1-017 852.8 859.2 6.4 4.6 2.9 18.8 0.3

65Z21-485-DDS1-017 454.4 478.3 24.0 6.9 2.7 10.7 1.2

65Z21-485-DDS1-018 No Significant Intercepts

Page 2: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness

Silver

(oz/ton)

Zinc

(%)

Lead

(%)

Southern Silver Expansion

65Z21-485-DDS1-019 308.7 393.7 85.0 57.4 4.4 16.1 1.5

65Z21-485-DDS1-019 403.5 459.2 55.6 31.8 8.8 11.3 5.4

65Z21-485-DDS1-020 1290.4 1299.3 9.0 7.9 8.8 6.0 4.7

65Z21-485-DDS1-020 712.6 714.9 2.3 1.3 41.6 29.3 28.1

65Z21-485-DDS1-021 561.0 600.4 39.4 27.2 14.9 11.8 8.9

65Z21-485-DDS1-022 No Significant Intercepts

65Z21-485-DDS1-023 573.7 580.1 6.4 4.9 36.5 17.1 24.0

65Z21-485-DDS1-023 843.2 850.5 7.3 * 16.0 12.8 8.6

65Z21-485-DDS1-023 632.4 636.2 3.8 * 13.7 13.6 8.6

65Z21-485-DDS1-023 686.7 691.2 4.5 * 4.8 17.2 1.6

65Z21-485-DDS1-024 878.8 893.2 14.4 11.5 6.9 9.8 2.2

65Z21-485-DDS1-025 377.8 384.1 6.3 5.6 0.1 17.0 0.0

65Z21-PAD06-001 972.8 979.3 6.6 * 14.6 10.4 6.6

65Z21-PAD06-001 225.1 246.1 21.0 * 1.6 4.9 1.1

65Z21-PAD06-001 310.0 324.8 14.8 9.5 1.5 8.5 0.6

65Z21-PAD06-001 1270.7 1279.0 8.3 4.9 5.4 13.3 2.5

Camp Creek Fault Expansion

CCF21-PAD03-008 646.0 648.7 2.7 * 18.0 14.6 15.4

CCF21-PAD03-009 No Significant Intercepts

CCF21-PAD03-010 No Significant Intercepts

CCF21-PAD07-004 695.6 707.5 11.9 * 11.7 11.4 7.8

Discovery Expansion

DSC20-PAD07-001 No Significant Intercepts

DSC20-PAD07-002 No Significant Intercepts

DSC21-PAD03-014 776.4 784.9 8.5 5.9 19.6 18.1 16.9

DSC21-PAD03-014 660.3 676.0 15.8 * 9.2 4.2 6.7

DSC21-PAD12-007 No Significant Intercepts

DSC21-PAD12-008 1327.4 1331.9 4.5 * 1.3 19.0 0.2

DSC21-PAD25-011A 1056.6 1078.4 21.9 19.7 7.2 4.8 3.2

DSC21-PAD25-011A 1156.0 1160.0 3.9 3.3 13.1 16.3 11.9

Tour Ridge Expansion

TRZ20-PAD04-006 1397.9 1423.1 25.2 19.4 3.3 13.0 1.9

TRZ20-PAD04-007 No Significant Intercepts

TRZ20-PAD04-008 No Significant Intercepts

Southern Silver Infill 65Z21-485-360-032 585.9 590.2 4.3 2.3 38.4 13.7 30.7

Page 3: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness

Silver

(oz/ton)

Zinc

(%)

Lead

(%)

Southern Silver Infill 65Z21-485-360-033 No Significant Intercepts

65Z21-485-DDS1-010 603.7 612.2 8.6 6.6 10.9 18.0 6.5

Camp Creek Fault Infill CCF21-PAD05-019 No Significant Intercepts

CCF21-PAD05-021 837.8 860.6 22.8 14.8 18.0 13.0 6.1

CCF21-PAD05-023 840.5 855.6 15.1 13.1 7.2 13.2 3.3

Discovery Infill DSC21-PAD03-010 906.4 908.4 2.0 * 32.2 20.7 14.4

DSC21-PAD03-011 1116.0 1118.7 2.7 * 24.0 8.7 8.1

DSC21-PAD03-012 757.9 769.8 12.0 6.9 24.7 15.1 15.6

DSC21-PAD03-013 657.6 672.6 15.0 * 2.9 5.4 2.2

DSC21-PAD03-013 623.7 629.9 6.2 5.9 8.6 8.7 7.4

Silvertip Analytical Detail

1. Sample intervals varied from approximately 0.3 ft (0.1 m) to 4.9 ft (1.5 m) in length and 0.84 lbs (0.38 kg)

to 19 lbs (9.0 kg) in weight. All samples were submitted to the Bureau Veritas preparation facility in

Whitehorse, YK, CA, or the ALS Minerals facility in Whitehorse, YK, CA where they were dried and

crushed. After crushing, samples were sent to Bureau Veritas in Vancouver, BC, CA or ALS Minerals in

Vancouver, BC, CA where approximately 8.8 ozs (250 g) of primary sample was pulverized and analyzed

by different analytical methods depending on the metal and its content.

2. All silver, zinc, and lead assays were initially obtained by an ultra-trace 0.01 oz/ton (0.25 g/tonne) 4-acid

digestion with an ICP-ES finish. Samples over 7 oz/ton (200 g/tonne) silver were reanalyzed by an ore grade

0.04 oz (1.0 g) 4-acid digestion with an ICP-ES finish. Samples over 53 oz/ton (1500 g/tonne) silver were

re-analyzed by a 1 oz (30 g) fire assay with gravimetric finish. Samples over 292 oz/ton (1%) zinc were re-

analyzed by an ore grade, 0.04 oz (1 g) 4-acid digestion with ICP-ES finish. Samples over 11667 oz/ton

(40%) zinc were re-analyzed by wet titration. Samples over 291 oz/ton (1%) lead were re-analyzed by an ore

grade 0.04 oz (1g) 4-acid digestion with ICP-ES finish. Samples over 2917 oz/ton (10%) lead were re-

analyzed by a wet titration.

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

ALS laboratory in Vancouver or 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 35, with a minimum grade of 8.75

oz/ton (300 g/tonne) AgEq.

Page 4: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Kensington, AK, USA –January 2021 through July 2021

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness Gold (oz/ton)

Elmira Expansion

EL21-0850-156-X01 No Significant Intercepts

EL21-0850-156-X02 1116.1 1117.4 1.3 0.7 2.22

EL21-0850-156-X03 583.3 585.3 2.0 1.9 1.53

EL21-0850-156-X03 785.0 791.7 6.7 5.1 0.36

EL21-0850-156-X04A 857.2 881.0 23.8 22.7 0.14

EL21-0850-156-X05 No Significant Intercepts

EL21-0850-156-X06 No Significant Intercepts

EL21-0850-156-X07 745.9 748.6 2.7 2.2 0.72

EL21-0850-156-X08 No Significant Intercepts

EL21-0850-156-X09 No Significant Intercepts

EL21-0850-156-X10 No Significant Intercepts

EL21-0850-156-X11 547.8 562.8 15.0 10.4 0.81

EL21-0850-156-X11 833.8 834.8 1.0 0.8 6.43

EL21-0850-156-X11 799.1 800.8 1.7 1.4 1.54

EL21-0850-156-X12 988.2 991.2 3.0 1.9 0.87

EL21-0850-156-X14 No Significant Intercepts

EL21-0850-156-X15 977.9 981.2 3.3 3.3 0.55

EL21-0850-156-X15 994.4 999.4 5.0 5.0 0.30

EL21-0850-156-X16 980.0 992.0 12.0 * 0.43

EL21-0850-156-X16 842.9 843.9 1.0 0.5 3.50

EL21-0850-156-X17 937.7 944.1 6.4 * 0.50

EL21-0850-156-X17 978.6 982.3 3.7 * 0.84

EL21-0850-156-X17 1026.2 1036.4 10.2 * 0.22

EL21-0850-156-X17 1058.6 1063.4 4.8 * 0.28

EL21-0850-156-X18 1037.8 1041.1 3.3 2.9 2.24

EL21-0850-156-X18 871.5 885.2 13.7 11.4 0.57

EL21-0850-156-X18 926.6 941.0 14.4 12.5 0.20

EL21-0850-156-X19 No Significant Intercepts

EL21-0850-156-X20 1004.0 1015.9 11.9 8.4 0.20

EL21-0850-156-X20 1154.6 1160.0 5.4 3.8 0.42

EL21-0850-156-X20 876.9 877.9 1.0 0.6 2.43

EL21-0850-156-X21 1025.0 1027.1 2.1 2.0 1.96

EL21-0850-156-X21 962.6 979.8 17.2 16.2 0.16

EL21-0850-156-X21 1138.4 1140.3 1.9 * 1.32

EL21-0850-156-X21 897.0 901.0 4.0 3.8 0.52

Page 5: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness Gold (oz/ton)

Elmira Expansion

EL21-0850-156-X21 790.4 794.3 3.9 3.7 0.37

EL21-0850-156-X23 1138.8 1146.4 7.6 * 0.30

EL21-0850-156-X23 965.4 966.5 1.1 * 1.51

EL21-0850-156-X23 1279.5 1288.8 9.3 * 0.15

Elmira Infill EL20-0850-156-X19 No Significant Intercepts

EL20-0850-156-X20 No Significant Intercepts

EL20-0850-156-X21 No Significant Intercepts

EL20-0850-156-X22 No Significant Intercepts

EL20-0850-156-X23 649.6 661.7 12.1 10.4 0.20

EL20-0850-156-X24 No Significant Intercepts

EL20-0850-156-X25 No Significant Intercepts

EL20-0850-156-X26 No Significant Intercepts

EL20-0850-156-X27 No Significant Intercepts

EL20-0850-156-X28 636.0 639.0 3.0 2.18

EL20-0850-156-X29 No Significant Intercepts

EL20-0850-156-X30 No Significant Intercepts

EL20-0850-156-X31 No Significant Intercepts

EL20-0850-156-X32 666.8 673.7 6.9 6.5 0.39

EL20-0850-156-X32 459.1 460.1 1.0 0.5 3.40

EL20-0850-156-X33 788.7 794.7 6.0 * 0.37

EL20-0850-156-X33 780.5 782.9 2.4 * 0.60

EL20-0850-156-X34 No Significant Intercepts

EL20-0850-192-X01 599.8 601.5 1.7 1.6 1.08

EL20-0850-192-X04 No Significant Intercepts

EL20-0850-192-X05 No Significant Intercepts

EL20-0850-192-X07 No Significant Intercepts

EL20-0850-192-X08 No Significant Intercepts

EL20-0850-192-X09 143.1 148.3 5.2 1.8 0.78

EL20-0850-192-X10 No Significant Intercepts

EL20-0850-192-X11 No Significant Intercepts

EL20-0850-192-X12 No Significant Intercepts

EL20-0850-192-X13 No Significant Intercepts

EL20-0850-192-X14 No Significant Intercepts

EL20-0850-192-X15 586.6 589.5 2.9 2.7 1.75

EL20-0850-192-X16 No Significant Intercepts

EL20-0850-192-X17 No Significant Intercepts

Page 6: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness Gold (oz/ton)

Elmira Infill EL20-0850-192-X18 No Significant Intercepts

EL20-0850-192-X19 251.3 259.2 7.9 * 0.23

EL20-0850-192-X19 975.9 979.8 3.9 * 0.35

EL20-0850-192-X20 No Significant Intercepts

EL21-0850-192-X01 No Significant Intercepts

EL21-0850-192-X02 No Significant Intercepts

EL21-0850-192-X03 No Significant Intercepts

EL21-0850-192-X04 624.7 629.7 5.0 4.5 0.42

EL21-0850-192-X05 No Significant Intercepts

EL21-0850-192-X06 No Significant Intercepts

EL21-0850-192-X07 618.7 623.7 5.0 4.7 0.48

EL21-0850-192-X08 No Significant Intercepts

EL21-0850-192-X09 653.9 659.9 6.0 5.6 1.01

EL21-0850-192-X10 No Significant Intercepts

EL21-0850-192-X11 No Significant Intercepts

EL21-0850-192-X12 No Significant Intercepts

EL21-0850-192-X13 No Significant Intercepts

EL21-0850-192-X14 536.5 540.6 4.1 3.6 0.41

EL21-0850-192-X15 No Significant Intercepts

EL21-0850-192-X16 646.0 649.6 3.6 3.4 0.41

EL21-0850-192-X17 618.0 624.2 6.2 2.6 0.65

EL21-0850-192-X17 500.3 506.0 5.7 1.9 0.78

EL21-0850-192-X18 No Significant Intercepts

EL21-0850-192-X19 No Significant Intercepts

EL21-0850-192-X20 No Significant Intercepts

EL21-0850-192-X21 587.7 593.9 6.2 5.1 0.97

EL21-0850-192-X21 719.5 723.4 3.9 * 0.55

EL21-0850-192-X22 No Significant Intercepts

EL21-0850-192-X23 558.7 578.4 19.7 0.48

EL21-0850-192-X24 No Significant Intercepts

EL21-0850-192-X25 No Significant Intercepts

EL21-0850-192-X26 475.0 476.7 1.7 1.1 1.90

EL21-0850-192-X28 No Significant Intercepts

EL21-0850-192-X28A 759.7 762.0 2.3 2.2 1.13

EL21-0850-192-X29 591.3 592.9 1.6 * 5.60

EL21-0850-192-X29 629.8 640.2 10.4 * 0.27

EL21-0850-192-X29 658.0 659.4 1.4 * 1.11

Page 7: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness Gold (oz/ton)

Elmira Infill EL21-0850-192-X30 639.0 654.5 15.5 14.6 1.06

EL21-0850-192-X31 No Significant Intercepts

EL21-0850-192-X32 602.8 609.6 6.8 4.8 0.32

EL21-0850-192-X33 683.0 690.7 7.7 7.2 0.28

EL21-0850-192-X33 588.0 599.2 11.2 * 0.15

EL21-0850-192-X34 No Significant Intercepts

EL21-0850-192-X35 No Significant Intercepts

EL21-0850-192-X36 661.1 668.0 6.9 6.7 0.51

EL21-0850-192-X36 528.3 530.3 2.0 1.9 1.75

EL21-0850-192-X36 612.8 620.5 7.7 6.3 0.22

Eureka Expansion

EU20-1400-136-X02 No Significant Intercepts

Johnson Expansion

JN21-0900-181-X01 No Significant Intercepts

JN21-0900-181-X02 296.2 297.4 1.2 * 1.31

JN21-0900-181-X03 No Significant Intercepts

JN21-0900-181-X04 579.9 586.0 6.1 4.3 0.34

JN21-0900-181-X05 374.8 379.0 4.2 3.6 0.72

JN21-0900-181-X06 No Significant Intercepts

Northern Belle Expansion

NB20-1710-218-X04 770.4 775.7 5.3 * 0.25

Page 8: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Kensington Analytical Detail 1. Drill intercepts of assays are from half HQ and NQ core samples. Exploration holes are cut in half at the

Kensington Mine, Juneau, AK. The core is crushed at the Bureau Veritas prep lab in Juneau, AK with 1.0

kg samples sent to Bureau Veritas, Vancouver, BC for pulverization and analysis. Sample lengths ranged

from 0.9 ft (0.30 m) to 6.0 ft (1.8 m).

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 insertion of custom certified reference standards. Blank material is

uncertified river rock sourced from a gravel pit in Washington that is ran through an internal round robin

process to guarantee there is no gold present. Field, crush, pulp, and analytical duplicates are taken. 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 1.29 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 0.858 for Jualin and Raven with a

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

6. Maximum dilution in the intercepts is 10 ft (3.1m) for all projects.

Page 9: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Wharf, SD, USA –January 2021 through July 2021

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness Gold (oz/ton)

Wharf Infill W21R-4748 No Significant Intercepts

W21R-4749 No Significant Intercepts

W21R-4750 No Significant Intercepts

W21R-4751 No Significant Intercepts

W21R-4752 No Significant Intercepts

W21R-4753 420 470 50 * 0.07

W21R-4754 440 500 60 * 0.02

W21R-4755 No Significant Intercepts

W21R-4756 300 460 160 * 0.03

W21R-4757 No Significant Intercepts

W21R-4758 60 100 40 * 0.05

W21R-4759 No Significant Intercepts

W21R-4760 130 170 40 * 0.05

W21R-4761 No Significant Intercepts

W21R-4762 650 720 70 * 0.07

W21R-4763 No Significant Intercepts

W21R-4764 No Significant Intercepts

W21R-4765 No Significant Intercepts

W21R-4767 No Significant Intercepts

W21R-4768 No Significant Intercepts

W21R-4769 420 480 60 * 0.02

W21R-4770 No Significant Intercepts

W21R-4771 No Significant Intercepts

W21R-4772 No Significant Intercepts

W21R-4773 170 230 60 * 0.07

W21R-4774 140 180 40 * 0.13

W21R-4775 250 350 100 * 0.04

W21R-4776 130 190 60 * 0.04

W21R-4777 170 200 30 * 0.06

W21R-4777 520 530 10 * 0.15

W21R-4778 No Significant Intercepts

W21R-4779 No Significant Intercepts

W21R-4780 No Significant Intercepts

W21R-4781 150 270 120 * 0.22

W21R-4782 No Significant Intercepts

Page 10: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness Gold (oz/ton)

Wharf Infill W21R-4783 No Significant Intercepts

W21R-4784 No Significant Intercepts

W21R-4785 No Significant Intercepts

W21R-4788 No Significant Intercepts

W21R-4789 No Significant Intercepts

W21R-4790 500 560 60 * 0.04

W21R-4791 No Significant Intercepts

W21R-4792 440 460 20 * 0.08

W21R-4793 No Significant Intercepts

W21R-4794 No Significant Intercepts

W21R-4795 490 630 140 * 0.06

W21R-4797 550 630 80 * 0.03

W21R-4798 No Significant Intercepts

W21R-4799 No Significant Intercepts

W21R-4800 620 710 90 * 0.02

W21R-4802 660 760 100 * 0.02

W21R-4802 0 50 50 * 0.02

W21R-4803 No Significant Intercepts

W21R-4804 650 680 30 * 0.04

W21R-4805 670 770 100 * 0.02

W21R-4806 0 60 60 * 0.02

W21R-4807 60 110 50 * 0.06

W21R-4808 No Significant Intercepts

W21R-4809 No Significant Intercepts

W21R-4810 No Significant Intercepts

W21R-4812 90 130 40 * 0.31

W21R-4813 130 160 30 * 0.11

W21R-4813 600 630 30 * 0.05

W21R-4813 660 690 30 * 0.04

W21R-4815 440 540 100 * 0.02

W21R-4816 420 550 130 * 0.02

W21R-4816 360 390 30 * 0.03

W21R-4817 130 160 30 * 0.07

W21R-4818 710 790 80 * 0.03

W21R-4819 120 220 100 * 0.09

W21R-4821 700 780 80 * 0.03

W21R-4823 650 740 90 * 0.02

Page 11: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness Gold (oz/ton)

Wharf Infill W21R-4824 210 250 40 * 0.14

W21R-4824 680 750 70 * 0.02

W21R-4825 140 190 50 * 0.09

W21R-4825 700 730 30 * 0.06

W21R-4826 140 340 200 * 0.12

W21R-4826 700 760 60 * 0.06

W21R-4827 120 190 70 * 0.14

W21R-4828 No Significant Intercepts

W21R-4829 No Significant Intercepts

W21R-4830 140 240 100 * 0.02

W21R-4831 60 120 60 * 0.06

W21R-4832 No Significant Intercepts

W21R-4833 No Significant Intercepts

W21R-4834 190 290 100 * 0.02

W21R-4835 No Significant Intercepts

W21R-4836 No Significant Intercepts

W21R-4837 No Significant Intercepts

W21R-4838 No Significant Intercepts

W21R-4839 70 120 50 * 0.03

W21R-4840 No Significant Intercepts

W21R-4841 No Significant Intercepts

W21R-4842 No Significant Intercepts

W21R-4843 280 340 60 * 0.06

W21R-4844 90 130 40 * 0.04

W21R-4845 No Significant Intercepts

W21R-4850 No Significant Intercepts

W21R-4851 90 170 80 * 0.03

W21R-4852 140 220 80 * 0.02

W21R-4853 100 300 200 * 0.02

W21R-4854 No Significant Intercepts

W21R-4855 450 520 70 * 0.02

W21R-4857 No Significant Intercepts

W21R-4858 No Significant Intercepts

Page 12: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Wharf Block Analytical Detail

1. Reverse circulation samples were taken on 10-foot (3m) intervals for all samples. Samples weighed 1.9

lbs (0.85 kg) to 36.7 lbs (16.7 kg).

2. All samples were submitted Bureau Veritas Laboratory in Sparks, NV, US. Samples were dried, crushed,

and pulverized. All gold assays were initially obtained by standard 1 oz (30 g) fire assay with an AA

finish. Samples with gold values greater than 0.0001 oz/ton (0.003 g/tonne) gold were additionally

assayed by a cold cyanide shake with an atomic absorption finish. Samples with gold values greater than

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

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

material has been used in 2021, and all material is certified. Fine blank material is obtained from CDN

labs, and coarse blank material from OREAS. Duplicate samples were collected at the sampling

stage. Crush and pulp duplicates are created at the laboratory. In total, control samples represent

approximately 19% of all samples sent to the commercial laboratory through Q2 2021.

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.

Page 13: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Palmarejo, CHH, MX – December 2020 through July 2021

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness

Gold

(oz/ton)

Silver

(oz/ton)

El Ojito Expansion

EODH_003 No Significant Intercepts

EODH_004 No Significant Intercepts

EODH_005 2072.6 2091.9 19.4 13.8 0.04 3.3

EODH_006 No Significant Intercepts

Hidalgo Expansion

HGDH_046 No Significant Intercepts

HGDH_047 1223.1 1228.0 4.9 4.3 0.35 26.4

HGDH_047 1229.8 1234.6 4.8 3.0 0.99 20.3

HGDH_048 No Significant Intercepts

HGDH_051 No Significant Intercepts

HGDH_052 2423.9 2445.4 21.6 14.8 0.03 2.9

HGDH_057 1053.2 1069.2 16.0 10.8 0.11 6.0

HGDH_059 1173.2 1186.0 12.9 11.8 0.07 1.1

HGDH_060 1778.5 1781.8 3.4 2.3 0.63 77.2

HGDH_060 1832.9 1834.6 1.6 1.3 0.65 90.4

HGDH_060 1845.0 1847.3 2.2 2.0 0.31 50.2

HGDH_060 1854.3 1867.2 12.9 11.2 0.04 8.0

HGDH_062 1125.5 1129.0 3.5 1.3 4.03 18.2

HGDH_063 1623.0 1633.8 10.8 8.5 0.09 5.3

HGDH_064 No Significant Intercepts

HGDH_066 1153.2 1162.0 8.8 5.6 0.18 19.0

HGDH_068 No Significant Intercepts

HGDH_070 1715.0 1717.5 2.5 2.0 0.20 14.7

HGDH_070 1821.8 1843.5 21.7 10.8 0.08 6.6

HGDH_070 1915.5 1924.7 9.2 5.9 0.13 9.5

HGDH_070 2090.5 2095.6 5.1 3.0 0.28 20.8

HGDH_070 2106.3 2107.9 1.6 1.3 0.38 35.3

HGDH_070 2171.0 2189.0 18.0 13.5 0.12 12.6

HGDH_071 No Significant Intercepts

Hidalgo Infill HGDH_049 819.3 841.2 21.9 19.7 0.04 6.4

HGDH_049 1648.6 1655.8 7.2 6.2 0.08 5.0

HGDH_049 1673.2 1697.8 24.6 20.7 0.06 2.7

HGDH_049 1936.6 1949.0 12.3 10.2 0.04 8.4

HGDH_050 945.9 964.9 19.0 15.1 0.04 8.0

Page 14: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness

Gold

(oz/ton)

Silver

(oz/ton)

HGDH_050 1467.1 1471.4 4.3 3.3 0.23 22.3

HGDH_050 1726.5 1886.9 160.4 142.7 0.11 7.9

HGDH_053 1042.8 1051.3 8.5 4.3 0.05 13.5

HGDH_053 1728.1 1740.3 12.2 7.9 0.20 6.7

HGDH_053 1750.8 1799.7 48.9 43.6 0.05 3.8

HGDH_053 1804.3 1828.3 24.1 19.4 0.05 3.7

HGDH_053 1837.0 1863.9 26.8 22.3 0.04 4.8

HGDH_054 No Significant Intercepts

HGDH_055 1712.6 1721.4 8.8 8.2 0.05 4.2

HGDH_056B No Significant Intercepts

HGDH_058 No Significant Intercepts

HGDH_061 768.0 775.3 7.3 6.9 0.07 5.5

HGDH_061 1900.4 1915.3 14.9 14.4 0.03 2.0

HGDH_061 1924.3 1939.0 14.7 14.1 0.03 3.1

HGDH_061 1946.6 1965.8 19.2 16.1 0.06 11.5

HGDH_061 2021.0 2047.2 26.3 24.6 0.05 5.8

HGDH_065 No Significant Intercepts

HGDH_067 1712.1 1722.4 10.3 9.8 0.24 12.0

HGDH_069 1501.9 1591.7 89.8 55.1 0.14 15.5

HGDH_069 1608.7 1625.6 16.9 10.8 0.04 3.5

HGDH_072 902.6 913.3 10.7 8.2 0.05 9.8

HGDH_072 959.3 962.6 3.3 2.6 0.34 69.7

HGDH_072 1830.3 1844.8 14.5 12.8 0.10 6.6

HGDH_072 1930.5 1941.0 10.5 9.5 0.20 2.9

HGDH_072 2006.8 2022.8 16.0 12.8 0.69 23.9

HGDH_072 2040.8 2053.5 12.7 7.6 0.04 8.5

Independencia Infill DC3-ICA-0253 No Significant Intercepts

DC3-ICA-0254 823.5 826.8 3.3 2.6 0.50 1.1

DC3-ICA-0255 No Significant Intercepts

DC3-ICA-0256 No Significant Intercepts

DC3-ICA-0257 No Significant Intercepts

DC3-ICA-0258 No Significant Intercepts

DC3-ICA-0259 No Significant Intercepts

DC3-ICA-0260 No Significant Intercepts

DC3-ICA-0261 504.1 506.8 2.7 2.6 0.21 7.9

DC3-ICA-0262 449.1 464.3 15.1 7.2 0.18 3.2

DC3-ICA-0263 366.7 382.3 15.6 13.8 0.05 2.5

Page 15: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness

Gold

(oz/ton)

Silver

(oz/ton)

Independencia Infill DC3-ICA-0264 389.5 399.7 10.2 8.2 0.16 6.7

DC3-ICA-0265 353.6 359.6 6.0 3.6 0.27 7.3

DC3-ICA-0266 No Significant Intercepts

DC3-ICA-0267 No Significant Intercepts

DC3-ICA-0268 No Significant Intercepts

DC3-ICA-0269 No Significant Intercepts

DC3-ICA-0270 No Significant Intercepts

DC3-ICA-0271 No Significant Intercepts

DC3-ICA-0272 378.9 393.7 14.8 11.5 0.02 8.8

DC3-ICA-0273 No Significant Intercepts

DC3-ICA-0274 No Significant Intercepts

DC3-ICA-0275 No Significant Intercepts

VIDH_157 No Significant Intercepts

VIDH_160 No Significant Intercepts

VIDH_161 1966.8 1984.8 18.0 11.2 0.27 15.7

VIDH_161 1994.6 2007.2 12.6 8.9 0.08 2.5

VIDH_162 No Significant Intercepts

VIDH_163 1686.7 1706.7 20.0 11.8 0.04 2.9

VIDH_164 1935.2 1949.8 14.6 10.5 0.03 5.8

VIDH_164 2007.4 2019.3 11.9 8.9 0.08 1.2

VIDH_165 No Significant Intercepts

VIDH_166 1692.7 1713.2 20.5 10.8 0.04 4.4

VIDH_167 1623.7 1633.8 10.2 7.9 0.04 5.6

VIDH_167 1655.0 1663.9 8.9 6.2 0.08 7.6

La Bavisa Expansion

BVDH_080 1591.4 1607.5 16.1 15.1 0.02 6.5

La Patria Infill LPDH_223 578.1 582.7 4.6 4.6 0.15 6.6

LPDH_234 703.7 698.2 11.1 8.2 0.11 3.2

LPDH_235 No Significant Intercepts

LPDH_237 No Significant Intercepts

LPDH_238 694.7 718.8 24.1 20.0 0.05 0.6 LPDH_238 737.9 760.5 22.6 20.3 0.16 1.9

LPDH_239 No Significant Intercepts

LPDH_240 No Significant Intercepts

LPDH_241 631.9 638.3 6.4 5.9 0.15 3.1

LPDH_242 No Significant Intercepts

Page 16: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

Mineralized Intercepts (feet) Assays

Hole From To Length Estimated

Thickness

Gold

(oz/ton)

Silver

(oz/ton)

La Patria Infill LPDH_243 No Significant Intercepts

LPDH_244 762.6 772.3 9.7 8.9 0.10 2.6

LPDH_245 No Significant Intercepts

LPDH_246 No Significant Intercepts

LPDH_247 No Significant Intercepts

LPDH_248 No Significant Intercepts

LPDH_249 No Significant Intercepts

LPDH_250 No Significant Intercepts

LPDH_251 763.4 767.1 3.6 3.3 0.20 4.8

LPDH_252 676.7 685.8 9.2 7.9 0.70 0.3

LPDH_253 720.1 722.3 2.2 2.0 0.89 2.6

LPDH_254 696.7 753.1 56.4 42.7 0.18 3.8

LPDH_255 608.8 610.5 1.7 1.3 0.66 5.8

LPDH_255 715.7 733.9 18.1 16.1 0.09 0.2

LPDH_255 740.6 762.0 21.3 18.7 0.05 0.3

LPDH_256 No Significant Intercepts

LPDH_257 No Significant Intercepts

LPDH_258 No Significant Intercepts

LPDH_260 No Significant Intercepts

Page 17: Coeur Mining, Inc. Exploration Drilling Update September ...

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.

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,

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.