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Exploration Update: Several Multi-Kilometer Silver Trends Identified at Cruz de Plata

Vancouver, British Columbia--(Newsfile Corp. - May 24, 2023) - CAPITAN MINING INC. (TSXV: CAPT) ("Capitan" or "the Company") is pleased to provide an exploration update for its Cruz de Plata project.

Highlights:

  • New interpretation and analysis at Cruz de Plata based on data collected to date, identifies several important large trends that are prospective for future silver and gold discoveries:

    • Jesus Maria Silver vein projects to a potential strike of 2.8 km

    • Santa Teresa Silver vein projects a potential strike of 1.8 km

    • San Rafael North Silver vein projects a potential strike of 1.3 km before going under cover

    • New disseminated oxide gold target developing at Eastern end of Capitan vein projection, along the same stratigraphic contact that host the Capitan oxide gold deposit. Capitan East has a potential strike of at least 500m

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  • New assays from surface sampling program at San Rafael North target returned values up to 1,263 g/t silver and 0.74 g/t gold from a grab dump sample beside an old mine working. This confirms the presence of high-grade silver mineralization at San Rafael

  • Assays from surface rock sampling along the Santa Teresa West high-grade silver trend (New) returned up to 410 g/t silver, 0.9 g/t gold, 1.7% lead and 0.7% zinc over 0.6m.

  • Surface rock sampling data shows continuity of mineralization at the Jesus Maria high-grade silver trend to a potential strike of 2.8 km

  • New targets developing on recently acquired property, Providencia West (Ag-Au-Pb-Zn) and Providencia East (Ag-Au)

  • Metal zonation suggests that Cruz de Plata hosts a robust mineralized system and has significant potential for additional discoveries

  • Final drill results from the 2022 RC drill program continue to expand mineralization at Cruz de Plata

Surface sampling at Cruz de Plata and Metal Zonation

The Cruz de Plata Project contains 855 recent samples collected by Capitan Silver, 262 samples within the recently-acquired claims acquired from Fresnillo and 1,805 historical samples by previous operators (2011-2014) for a total of 2,922 surface rock samples. Assays for these samples have been plotted and crossed checked with the geology at Cruz de Plata to define three metal zones which include multiple targets (See Fig. 1). These zones are:

  • Silver-Gold-Lead-Zinc: Includes Cruz de Plata's main and most advanced target, the Jesus María vein (1) as well as Santa Teresa (2), Providencia West (8) and at depth below the Capitan gold deposit, Jesus Maria South (7)

  • High-grade Silver-Gold: Includes the second most advanced target, the Gully Fault Ag-Au zone (4), and the San Rafael North (3) and Escondida targets (6) to the East, as well as the new Providencia East target (8) to the northeast

  • Vein hosted/Disseminated Gold: Includes the Capitan vein (5), disseminated Capitan oxide gold deposit and Capitan East target which is located along the continuation of the sediments-volcanics boundary to the East (5)

Metal zonation appears to follow stratigraphic control and proximity to the diorite-granodiorite intrusive, which sits in the northern part of the property. High-grade silver mineralization appears to be proximal to the intrusive, mainly at the contact between the skarn alteration and the shales-limestones. Gold mineralization is observed more distal from the intrusive primarily at the contact of the sediments and the overlying tertiary rhyolites and volcanic breccias. A transition is observed on the silver trend from base-metal rich and higher arsenic to the west to base metal poor and low arsenic to the east. Currently this transition is interpreted to be a vertical zonation of the veins resulting in its current outcrop form by faulting and tilting mainly by the Peñoles fault.



Figure 1. Highlight surface samples, metal zonation and vein targets at the Cruz de Plata project, Durango, Mexico.

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/7373/167261_d518d11cc464ab7a_002full.jpg

High-Grade Trends and Targets

Expansion of High-Grade Trends and Targets

Drilling, prospecting and recent mapping has helped define a minimum of seven (7), multi-kilometer, high-grade silver trends and targets (shown in figure 2). This new interpretation, aided by the recent acquisition of claims from Fresnillo, which consolidated the main silver trend in the district, has led to a significant increase in the untested strike potential across the Cruz De Plata property package.

The most advanced targets to this point include western portions of the Jesus Maria Vein, and portions of the Gully Fault Zone, with the majority of Jesus Maria (Central and Eastern portions), Santa Teresa, and San Rafael North targets, defined by surface sampling and minimal, widely spaced, shallow drilling. It should be noted that the cumulative strike length of the targets above is approximately 7 km, with the majority of the current drilling concentrated over a 500-700m area at the western most portion of the Jesus Maria/Gully Fault zones. Drill results (previously released, table 1) from Jesus Maria and the Gully Fault zones demonstrate high, multi-ounce silver grades with good continuity along strike and at depth, from historic surface sampling and trenching (See Fig. 2). These results reflect the attention this area has received from multiple drill programs.

Future work along the silver trends in figure 2 include additional surface trenching and geochemistry to help prioritize these targets for first pass drilling or expansion drilling.



Figure 2: High Grade Trends and Targets, Cruz De Plata Property

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/7373/167261_d518d11cc464ab7a_003full.jpg

2022 Drill Program at Jesus Maria Silver Trend

In 2022, following the acquisition of the Altiplano royalty on the Cruz de Plata project (PR date January 13, 2022), Capitan begin to focus on the robust silver opportunity on its property. In total 6,449 m have been drilled by Capitan with the following RC drill holes intersecting bonanza grade silver mineralization (See table 1 for additional results and detail):

  • 21-JMRC-01: 42.7m of 207.82 g/t AgEq including 1.5m of 1,099.34 g/t AgEq and also including 1.5m of 1,267.22 g/t AgEq

  • 21-JMRC-03: 10.7m of 403.43 g/t AgEq including 1.5m of 739.63 g/t AgEq, also including 1.5m of 800 g/t AgEq and also including 1.5m of 595.52 g/t AgEq

  • 21-JMRC-10: 16.8m of 309.82 g/t AgEq including 1.5m of 2,250.12 g/t AgEq

  • 21-JMRC-12: 21.3m of 133.04 g/t AgEq including 1.5m of 455.13 g/t AgEq and also including 1.5m of 305.61 g/t AgEq

  • 22-JMRC-22: 10.7m of 314.54 g/t AgEq including 1.5m of 1,431.68 g/t AgEq

Silver mineralized zones intersected at the Jesus Maria vein with the RC drilling, were as large at 42m wide and averaged approximately 10m in true width.

In late November 2022, Capitan acquired a key property from Fresnillo which allowed for the consolidation of high-grade silver vein trends at Cruz de Plata (See press release dated December 06, 2022). To date Capitan has confirmed the presence of high-grade silver mineralization through drilling at the Jesus Maria vein over 1.3km with mineralization remaining open along strike and at depth.

The latest two drill holes in the program continued to target the down-dip and on-strike continuity of mineralization at the Jesus Maria vein and Gully Fault targets. Drillhole 22-JMRC-23 targeted the down-dip extension of the Jesus Maria Vein while drillhole 22-JMRC-24 targeted the down-plunge extension of the Gully Fault Zone (See Fig. 3). Drillhole 22-JMRC-23 intersected a new zone of mineralization located approximately 40m above the down plunge extension of the Gully Fault Zone, returning 118.44 g/t AgEq over 6.1m. The drillhole also intersected the main Jesus Maria Vein at depth, extending the zone an additional 105m down-dip, but mainly returned a wide intersection of lower grade mineralization including 24.4m of 48.95 g/t AgEq, which included 1.52m of 194.92 g/t AgEq.

Drillhole 22-JMRC-24 was designed to test the orientation of the down-plunge extension of the Gully Fault zone. The hole appears to have been drilled too shallow and above the down-plunge extension of high-grade mineralization. The hole returned mainly low-grade silver mineralization, that appears to potentially line-up with the new zone intersected in hole 22-JMRC-23.



Figure 3. Drill map for Jesus María West and Santa Teresa East veins

To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/7373/167261_d518d11cc464ab7a_004full.jpg

Pilot Drill Program at New Santa Teresa East Target

The Santa Teresa vein has been sampled on its westernmost and easternmost ends with assays in the west of up to 443 g/t Ag and up to 3.08 g/t Au with base metal contents in surface rock samples (table 2). At the eastern portion Santa Teresa vein, surface rock samples, with a 100 g/t Ag cutoff have returned between 132 g/t Ag and 209 g/t Ag over a strike length of about 500m. The eastern end of the Santa Teresa silver trend consists of multiple, historic mine workings and is located immediately north of the historic San Rafael historic mine workings on the eastern end of the Jesus Maria vein.;New sampling along the eastern portion of this trend assayed 1,364 g/t Ag and 0.74 g/t Au, indicative of the grades that had been mined at the site historically. This is also consistent with data reported by Riverside Resources which indicated that grades of around 1,000 g/t Ag were mined at San Rafael (See Riverside Press Release dated December 12, 2008).

In December 2022, Capitan designed a small pilot RC drill program to test the on-strike and down-dip continuity of the Santa Teresa target (See Figure 3). Four widely-spaced holes were drilled along the Santa Teresa zone with all of them intersecting multiple, sub-parallel zones of mineralization. Hole 22-SRRC-01 intersected 1.52m of 122 g/t Ag, within a wider 4.6m interval of 70.23 g/t Ag and 0.105 g/t Au; as well as a wide intercept of mineralization of 10.7m of 32.46 g/t Ag and 0.14 g/t Au. Hole 22-SRRC-03 intersected 1.52m of 182 g/t Ag and 0.105 g/t Au and hole 22-SRRC-04 intersected 3.0m of 127.4 g/t Ag (Table 3). While these drill holes did not intersect the expected higher grades, the wide-spaced program confirmed the continuity of silver and gold mineralization in the eastern most projections of the Santa Teresa vein over a strike length of about 370m and to a down-dip length of up to 270m. Follow-up drilling will continue to focus on the locating high-grade shoots within these zones.

Table 1. Highlights from previously reported drill holes from the high-grade silver targets

JM_DDH_11_01

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn
(%)

Interval

194.5

196.9

2.5

257.80

113.63

0.132

2.46

2.141

Including

194.5

195.1

0.6

931.15

392.55

0.416

9.55

7.800

 

JM_DDH_13_06

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn (%)

Interval

66.6

80.3

13.7

381.06

280.40

0.171

1.19

2.121

Including

79.4

80.3

0.9

3,567.36

3,409.10

0.355

3.42

7.120

 

JM_DDH_13_07

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn (%)

Interval

114.7

120.7

6.0

368.26

363.03

0.109

0.27

0.354

Including

114.7

116.7

2.0

970.77

988.50

0.225

0.34

0.490

 

JM_DDH_14_10

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn (%)

Interval

18.9

59.5

40.6

160.05

123.89

0.536

0.07

0.138

Including

27.7

32.0

4.3

786.50

732.24

1.201

0.13

0.348

 

JM_DDH_14_24

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn (%)

Interval

52.7

94.6

42.0

244.72

227.24

0.377

0.05

0.113

Including

79.0

86.1

7.1

1,024.38

988.43

1.240

0.13

0.189

21-JMRC-01

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn
(%)

Interval

18.3

61.0

42.7

207.82

154.15

0.371

0.46

0.716

Including

19.8

21.3

1.5

1,099.34

1,044.00

1.028

0.80

0.730

Including

29.0

30.5

1.5

1,267.22

1,271.00

0.534

0.49

0.646

Including

38.1

39.6

1.5

341.60

286.00

0.660

0.38

0.493

Including

50.3

53.3

3.0

311.33

154.50

0.658

1.65

2.195

 










21-JMRC-03

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn (%)

Interval

77.7

88.4

10.7

403.43

177.44

0.371

3.20

3.569

Including

79.2

80.8

1.5

739.63

290.00

0.762

6.82

6.560

Including

83.8

85.3

1.5

799.99

370.00

0.271

5.59

8.130

Including

86.9

88.4

1.5

595.52

281.00

0.513

5.92

3.820

 










21-JMRC-07

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn (%)

Interval

112.8

135.6

22.9

71.53

56.91

0.101

0.13

0.219

Including

131.1

132.6

1.5

398.67

342.00

0.390

0.65

0.942

 










21-JMRC-10

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn (%)

Interval

16.8

33.5

16.8

309.82

291.20

0.383

0.15

0.161

Including

19.8

21.3

1.5

2,250.12

2,217.00

1.766

1.06

0.438

 










22-JMRC-12

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn (%)

Interval

15.2

36.6

21.3

133.04

100.50

0.249

0.25

0.421

Including

21.3

22.9

1.5

455.13

383.00

0.584

0.94

0.842

Including

24.4

25.9

1.5

305.61

239.00

0.331

0.96

0.917

 










22-JMRC-14

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn (%)

Interval

140.2

144.8

4.6

218.68

183.10

0.632

0.05

0.049

Including

141.7

143.3

1.5

577.98

504.00

1.450

0.11

0.037

22-JMRC-22

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn (%)

Interval

74.7

85.3

10.7

314.54

287.24

0.481

0.19

0.179

Including

74.7

76.2

1.5

1,431.68

1,381.00

1.358

0.85

0.480

Intervals are reported as drilled lengths. True widths are approximately 70-95% of reported interval
Ageq values are calculated as follows: Ageq = (Ag x 0.94) + (Au x 0.86 x 80) + (Zn x 0.037 x 0.935) + (Pb x 0.03 x 0.92)
Recoveries have been estimated using an average of similar polymetallic deposits in Mexico as well as preliminary metallurgical work from 2014
Intervals are calculated based on a 25g/t Ageq cut-off (including recoveries) with no more than 3m of internal waste

Table 2. Highlight surface chip samples from the Santa Teresa West target

Sample

Easting

Northing

Length

Au (g/t)

Ag (g/t)

Pb (%)

Zn (%)

69090

546,307

2,837,835

0.5

0.141

342

1.69

2.9

69091

546,307

2,837,835

0.6

0.904

410

1.67

0.7

69095

546,412

2,837,853

0.8

1.745

128

1.9

1.25

69096

546,412

2,837,853

0.6

3.083

344

0.77

0.67

69098

546,374

2,837,725

0.9

2.126

183

2.97

0.76

69102

546,128

2,837,868

0.6

0.539

414

2.4

0.38

69108

546,472

2,838,002

1.4

0.518

443

0.15

0.24

69113

546,546

2,838,000

0.9

0.24

140

0.007

0.01

69115

546,547

2,837,998

0.8

0.456

156

0.06

0.04

69117

546,569

2,837,990

1.4

0.202

147

0.08

0.18

69870

546,059

2,838,094

0.4

0.426

147

2.4

2.99

 

Table 3. Drill results from Jesus Maria-Gully Fault zone drilling

22-JMRC-23

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn
(%)

Interval

115.8

121.9

6.1

118.44

102.78

0.120

0.03

0.371

Including

118.9

120.4

1.5

213.12

185

0.195

0.02

0.738

Interval

228.6

253.0

24.4

48.95

16.16

0.262

0.19

0.303

Including

231.7

233.2

1.52

194.92

82.3

0.275

1.49

1.67


22-JMRC-24

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Pb (%)

Zn (%)

Interval

109.7

111.3

1.5

79.98

55.40

0.401

0.00

0.008

Interval

117.3

118.9

1.5

93.73

93.60

0.072

0.02

0.010

Intervals are reported as drilled lengths. True widths are approximately 70-95% of reported interval
Ageq values are calculated as follows: Ageq = (Ag x 0.94) + (Au x 0.86 x 80) + (Zn x 0.037 x 0.935) + (Pb x 0.03 x 0.92)
Recoveries have been estimated using an average of similar polymetallic deposits in Mexico as well as preliminary metallurgical work from 2014
Intervals are calculated based on a 25g/t Ageq cut-off (including recoveries) with no more than 3m of internal waste


Table 4. Drill results from Santa Teresa-Jesus Maria East zones drilling

22-SRRC-01

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Interval

29.0

33.5

4.6

73.58

70.23

0.105

Including

29.0

30.48

1.5

118.88

122

0.055

Interval

51.8

62.5

10.7

40.98

32.36

0.140

22-SRRC-02

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Interval

135.6

137.2

1.5

72.94

49.50

0.380

Interval

157.0

164.6

7.6

55.83

48.20

0.146

22-SRRC-03

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Interval

9.1

10.7

1.5

41.99

19.70

0.332

Interval

27.4

33.5

6.1

58.48

55.85

0.084

Including

32.0

33.5

1.5

178.55

182

0.105

22-SRRC-04

From (m)

To (m)

Interval (m)

AgEq (g/t)*

Ag (g/t)

Au (g/t)

Interval

237.7

240.8

3.0

125.47

127.35

0.072

Including

237.7

239.3

1.5

184.94

190

0.081

Interval

269.7

274.3

4.6

71.31

53.00

0.306

including

272.8

274.3

1.5

165.02

123

0.712

Intervals are reported as drilled lengths. True widths are approximately 70-95% of reported interval
Ageq values are calculated as follows: Ageq = (Ag x 0.94) + (Au x 0.86 x 80) + (Zn x 0.037 x 0.935) + (Pb x 0.03 x 0.92)
Recoveries have been estimated using an average of similar polymetallic deposits in Mexico as well as preliminary metallurgical work from 2014
Intervals are calculated based on a 25g/t Ageq cut-off (including recoveries) with no more than 3m of internal waste

Qualified Person & QA/QC:

The scientific and technical data contained in this news release pertaining to the Cruz de Plata Project was reviewed and approved by Marc Idziszek, P.Geo, a non-independent qualified person to Capitan Silver, who is responsible for ensuring that the technical information provided in this news release is accurate and who acts as a "qualified person" under National Instrument 43-101 Standards of Disclosure for Mineral Projects.

Capitan Silver Corp. has a Quality Assurance/Quality Control program that includes insertion and verification of control samples including standard reference material, blanks and duplicates consistent with industry standards.

RC drill samples from the Cruz de Plata Project are collected and split at the drill site using a Gilson Universal Splitter. The samples are stored in either plastic bags (dry) or micropore bags (wet) and secured with plastic zip-ties and then transported to the preparation laboratory of Bureau Veritas in the city of Durango, Durango. The sample pulps are then transported to the Bureau Veritas' laboratory in Vancouver, where they are assayed for gold by fire assay with atomic absorption finish (FA430 assay method code; 0.005 to 10 ppm detection limit). Samples over 10 ppm Au and over 100 ppm Ag are assayed with gravimetric finish (Assay code FA530). All samples are also assayed by ICP-ES (code AQ300) for a suite of 33 elements. Samples over 1% Pb an d/ or 1% Zn are assayed by Aqua regia Ore Grade ICP-ES (AQ 370).

Diamond drill-hole samples, drilled by Fresnillo, reported in this press release were assayed at SGS Labs for gold by fire assay with atomic absorption finish (GE_FAA515 assay method code; 0.005 to 10 ppm detection limit). Samples over 10 ppm Au and over 100 ppm Ag are assayed with gravimetric finish (Assay code GEO_FAG515). All samples are also assayed by ICP-ES (code GE_ICP40B) for a suite of 33 elements. Samples over 1%Pb and Zn are assayed by Aqua regia Ore Grade ICP-ES (GO_ICP90Q).

All summarized intervals reported in this press release were calculated using a 25 ppm Ag equivalent (AgEq) cut-off grade with AgEq considering Ag, Au, Pb and Zn and calculated as follows: AgEq = Ag g/t + (80x Au g/t) + (0.003 x Pb g/t) + (0.0037 x Zn g/t). Intervals contain no more than 3 metres of internal dilution. High grades have not been capped.

About Capitan Silver Corp.

Capitan Silver is a well-funded junior exploration company focused on its 100% owned gold and silver Cruz de Plata Project in Durango, Mexico. The Company is led by a management team that has successfully advanced and developed several heap leach operations in Mexico over the past 16 years.

More information for the Company can be found at www.capitansilver.com

ON BEHALF OF CAPITAN SILVER CORP.

"Alberto Orozco"
Alberto Orozco, CEO

For additional information contact:

Alberto Orozco
CEO
Capitan Silver Corp.
info@capitansilver.com
Phone: (78) 327-6671
Fax: (778) 327-6675
Web: www.capitansilver.com

Raffi Elmajian
Corporate Communications
Capitan Silver Corp.
info@capitansilver.com
Phone: (778) 327-6671
Web: www.capitansilver.com

Certain statements in this press release may be considered forward-looking information. These statements can be identified by the use of forward-looking terminology (e.g., "expect"," estimates", "intends", "anticipates", "believes", "plans"). Such information involves known and unknown risks -- including the availability of funds, the results of financing and exploration activities, the interpretation of exploration results and other geological data, or unanticipated costs and expenses and other risks identified by Capitan in its public securities filings that may cause actual events to differ materially from current expectations. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release.

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