Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

EDR.TO ·

Endeavour Silver Drilling Discovers Potential Bulk Tonnage Silver Mineralization in the Palmilla Mine Area, Parral Project, Chihuahua, Mexico

Exploration Programs

Endeavour Silver Drilling Discovers Potential Bulk Tonnage Silver

Mineralization in the Palmilla Mine Area, Parral Project, Chihuahua, Mexico

VANCOUVER, British Columbia, Nov. 15, 2017 -- Endeavour Silver Corp. (NYSE:EXK) (TSX: EDR) announces that

exploration drilling on the Parral property in Chihuahua State, Mexico has discovered potential bulk tonnage silver

mineralization within the Palmilla-Capuzaya-La Luz veins in the Palmilla mine area.

Palmilla was an historic high grade silver mine which provided silver to the Mexican mint in the late 1800’s.  While most of the

narrow, high grade ores were mined out from underground workings located on and immediately south of the Parral property,

Endeavour drilling has outlined lower grade, bulk tonnage mineralization above and along strike of the old workings that may be

amenable to open pit mining.

Thirty two drill holes totaling 6,370 metres (m) of core were drilled to test the Palmilla mine area (view maps here). The drill

holes were spaced at approximately 50 m centres along two main mineralized structures over an area 550 m long by 250 m

wide by 150 m deep.

Drilling highlights include 11.1 m (36.4 feet (ft)) true width grading 154 grams per tonne (gpt) silver, 0.36 gpt gold, 0.07% lead

and 0.23% zinc (179 gpt silver equivalent (AgEq) or 5.8 oz per tonne (opt) AgEq) in hole PAL-02.  Other highlights include two

intercepts of 11.0 m (36.1 ft) assaying 118 gpt silver, 0.60 gpt gold, 0.15% lead and 0.22% zinc (160 gpt AgEq or 5.1 opt

AgEq) and 15.1 m (49.5 ft) running 114 gpt silver, 0.2 gpt gold, 0.22% lead and 0.33% zinc (128 gpt AgEq or 4.1 opt AgEq) in

hole PAL-13.

Results for the 24 top drill intercepts are summarized in the table below.

Hole Structure From True width Au Ag Pb Zn AgEq

(m) (m) (gpt) (gpt) (%) (%) (gpt)

PAL-01 Capuzaya

Including

102.00 13.08 0.14 49 0.254 0.651 59

109.00 0.4 0.06 139 1.010 0.235 143

PAL-02 Palmilla

Including

119.70 11.1 0.36 154 0.071 0.227 180

145.45 0.5 0.15 1,115 0.045 0.227 1,126

PAL-04 Capuzaya

Including

100.75 10.4 0.11 52 0.173 0.406 60

117.90 0.2 0.38 166 0.237 1.005 192

PAL-05 Capuzaya

Including

47.90 5.0 0.13 84 0.151 0.288 93

51.85 0.3 1.02 757 0.477 0.083 828

PAL-06 Capuzaya

Including

75.85 5.1 0.01 151 0.051 0.304 151

78.15 0.6 0.01 486 0.066 0.322 487

PAL-07 Capuzaya

Including

51.85 28.5 0.03 60 0.079 0.591 62

58.60 1.0 0.03 347 0.455 0.079 349

PAL-08 Palmilla

Including

69.15 13.4 0.35 79 0.168 0.279 103

79.90 0.7 0.20 227 1.815 0.183 241

PAL-09 Capuzaya

including

82.10 11.8 0.09 139 0.141 0.219 145

85.15 0.3 0.19 1,050 2.360 0.224 1,063

PAL-10 Capuzaya

Including

68.40 9.9 0.04 76 0.143 0.312 79

72.90 0.9 0.04 233 0.191 0.178 236

PAL-11 Capuzaya

Including

145.20 6.7 0.30 206 0.292 0.499 227

147.20 0.3 1.17 889 0.155 0.108 971

PAL-13

La Luz

Including

Palmilla

including

78.80 11.0 0.60 118 0.145 0.222 160

84.40 0.7 2.13 596 0.621 0.159 745

97.05 15.1 0.20 114 0.216 0.331 128

108.15 0.4 0.21 383 0.144 0.220 398

PAL-14 Capuzaya

Including

111.00 12.4 0.19 43 0.955 1.457 56

119.40 0.6 0.87 222 6.290 0.290 283

PAL-15 La Luz

Including

108.00 7.2 0.08 100 0.137 0.301 106

113.90 0.4 0.14 572 0.682 0.438 582

PAL-17 Capuzaya

Including

77.90 5.5 0.08 63 0.096 0.290 69

81.50 1.0 0.08 126 0.096 0.387 132

PAL-18 Capuzaya

Including

59.55 5.1 0.35 72 0.229 0.291 96

59.55 0.4 0.70 284 1.605 0.328 333

PAL-20 Palmilla

Including

14.80 12.8 0.58 63 0.018 0.109 104

19.30 0.9 1.72 261 0.029 0.063 381

PAL-21 Capuzaya

including

101.35 13.4 0.10 91 0.361 0.565 98

125.05 0.3 0.14 499 0.544 0.948 509

PAL-22

La Luz

Including

Palmilla

Including

72.40 12.9 0.07 92 0.152 0.255 97

85.00 0.7 0.28 248 0.287 0.080 268

96.05 6.8 0.11 65 0.084 0.158 73

103.00 0.8 0.04 207 0.441 0.215 210

PAL-24

La Luz

Including

Palmilla

Including

115.70 5.2 0.05 47 0.142 0.429 51

126.40 0.3 0.01 119 0.054 0.277 120

177.30 5.0 0.11 96 0.313 0.255 103

182.00 0.3 0.13 582 0.289 0.145 591

PAL-25

La Luz

Including

Palmilla

Including

40.50 15.0 0.14 117 0.202 0.269 127

65.50 2.4 0.12 681 1.895 0.084 690

89.05 15.9 0.75 35 0.366 0.736 88

93.85 0.7 12.05 80 0.122 1.130 924

PAL-26 Capuzaya

Including

55.90 6.0 0.01 61 0.081 0.528 62

55.90 1.0 0.02 184 0.141 0.328 185

PAL-27

La Luz

Including

Palmilla

Including

130.60 5.1 0.10 79 0.164 0.476 85

138.60 0.2 0.07 490 0.848 0.353 495

173.20 6.8 0.21 64 0.837 0.520 79

174.25 0.7 0.04 215 0.766 0.151 218

PAL-29

La Luz

Including

Capuzaya

Including

55.10 5.4 0.01 111 0.082 0.367 112

56.10 0.3 0.03 437 0.078 0.894 439

144.00 5.7 0.01 446 0.402 0.678 447

145.20 0.9 0.01 2,170 0.576 0.437 2,171

PAL-32

Palmilla

Including

Capuzaya

Including

77.35 13.2 0.56 121 0.192 0.388 160

99.75 0.3 0.11 1,150 2,050 0.937 1,157

118.00 11.8 0.12 46 0.174 0.340 54

124.65 0.3 0.11 133 0.765 1.115 141

Silver equivalents are calculated at a ratio of 70:1 silver: gold, excluding base metals and expected recoveries

Luis Castro, Vice President of Exploration for Endeavour Silver, commented, “Our discovery of potential bulk tonnage silver-

gold-lead-zinc mineralization in the Palmilla mine area, that may be amenable to open pit mining, is an exciting new

development for the Parral district in general and our property in particular.”

“It gives us a second mineralized area with resource potential to complement the Veta Colorada area where we have already

verified a portion of the historic high grade silver resource (see news release dated October 24, 2017). 

“Drilling continues on the Parral property in a third mineralized area known as the San Patricio vein which lies to the north of

Palmilla.  A new resource estimate for the Parral property will be prepared at year-end for release in the 1st quarter of 2018.”

Godfrey Walton, M.Sc., P.Geo., Endeavour’s President and COO, is the Qualified Person who reviewed and approved this

news release and supervised the drilling programs in Mexico. A Quality Control sampling program of reference standards,

blanks and duplicates is used to monitor the integrity of all assay results. All samples are split at the local field office and

shipped to ALS-Chemex Labs, where they are dried, crushed, split and 50 gram pulp samples are prepared for analysis. Gold

and silver are determined by fire assay with an atomic absorption (AA) finish.

About Endeavour Silver – Endeavour Silver is a mid-tier precious metals mining company that owns three high grade,

underground, silver-gold mines in Mexico. Since start -up in 2004, Endeavour has grown its mining operations organically to

produce 9.7 million ounces of silver and equivalents in 2016. We find, build and operate quality silver mines in a sustainable

way to create real value for all stakeholders. Endeavour Silver’s shares trade on the TSX (EDR) and the NYSE (EXK).

Contact Information - For more information, please contact:

Galina Meleger, Director of Investor Relations

Toll free: (877) 685-9775

Fax: (604) 685-9744

Email: [email protected]

Website: www.edrsilver.com

Cautionary Note Regarding Forward-Looking Statements

This news release contains “forward-looking statements” within the meaning of the United States private securities litigation

reform act of 1995 and “forward-looking information” within the meaning of applicable Canadian securities legislation. Such

forward-looking statements and information herein include but are not limited to statements regarding Endeavour’s anticipated

performance in 2017 including changes in mining and operations and the timing and results of various activities. The Company

does not intend to, and does not assume any obligation to update such forward-looking statements or information, other than

as required by applicable law.

Forward-looking statements or information involve known and unknown risks, uncertainties and other factors that may cause

the actual results, level of activity, performance or achievements of Endeavour and its operations to be materially different

from those expressed or implied by such statements. Such factors include but are not limited to changes in national and local

governments, legislation, taxation, controls, regulations and political or economic developments in Canada and Mexico;

financial risks due to precious metals prices, operating or technical difficulties in mineral exploration, development and mining

activities; risks and hazards of mineral exploration, development and mining; the speculative nature of mineral exploration and

development, risks in obtaining necessary licenses and permits, and challenges to the Company’s title to properties; as well

as those factors described in the section “risk factors” contained in the Company’s most recent form 40F/Annual Information

Form filed with the S.E.C. and Canadian securities regulatory authorities.

Forward-looking statements are based on assumptions management believes to be reasonable, including but not limited to:

the continued operation of the Company’s mining operations, no material adverse change in the market price of commodities,

mining operations will operate and the mining products will be completed in accordance with management’s expectations and

achieve their stated production outcomes, and such other assumptions and factors as set out herein. Although the Company

has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-

looking statements or information, there may be other factors that cause results to be materially different from those

anticipated, described, estimated, assessed or intended. There can be no assurance that any forward-looking statements or

information will prove to be accurate as actual results and future events could differ materially from those anticipated in such

statements or information. Accordingly, readers should not place undue reliance on forward-looking statements or information.