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Endeavour Silver Updates 2019 Mineral Reserve and Resource Estimates

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Vancouver, Canada – January 29, 2020 - Endeavour Silver Corp. (TSX: EDR, NYSE: EXK - https://www.commodity-tv.com/ondemand/companies/profil/endeavour-silver-corp/) reports updated Mineral Reserve and Resource Estimates for its three operating silver-gold mines in Mexico, Guanacevi in Durango state, Bolanitos in Guanajuato state and El Compas in Zacatecas state and two key exploration and development projects, Terronera in Jalisco state and Parral in Chihuahua state.

2019 Mineral Reserve and Resource Highlights (Compared to December 31, 2018)

  • Silver Proven and Probable Mineral Reserves decreased 7% to 43.9 million ounces (oz)
  • Gold Proven and Probable Mineral Reserves remained unchanged at 477,000 oz
  • Silver equivalent Proven and Probable Mineral Reserves of 82.0 million oz (80:1 silver:gold ratio)
  • Silver Measured and Indicated Mineral Resources increased 6% to 29.0 million oz
  • Gold Measured and Indicated Mineral Resources decreased 22% to 226,500 oz
  • Silver equivalent Measured and Indicated Mineral Resources of 47.1 million oz
  • Silver Inferred Mineral Resources increased 4% to 60.7 million oz
  • Gold Inferred Mineral Resources decreased 11% to 287,000 oz
  • Silver equivalent Inferred Mineral Resources of 83.7 million oz

 

Bradford Cooke, CEO of Endeavour, stated, “Our exploration programs were successful last year in outlining new brownfields discoveries at three of our mines and projects in Mexico.  We expanded the measured and indicated resources at Guanacevi and Parral and increased inferred resources at Guanacevi, Bolanitos and Parral.  Our reserves declined at Guanacevi but increased at Bolanitos and El Compas.”

“Resources increased significantly at Guanacevi due to our lease acquisition and successful exploration of the El Porvenir and El Curso properties, which adjoin two of our historic orebodies, Porvenir Norte and Porvenir Cuatro.  Bolanitos benefited from the delineation of the San Miguel discovery and Parral was our largest exploration expenditure in 2019 where we expanded the resources at the Sierra Plata and La Verde mines along the Veta Colorada vein system.”

“In 2020, we will again focus on replacing reserves at each mine as well as expanding resources at Parral and other greenfields projects.  At Terronera, we have turned our attention from resource expansion to mine development as it has the potential to become our largest and lowest cost mine.”

Mineral Reserve and Resource Discussion

Proven and Probable Mineral Reserves for silver decreased year on year by 7% to 43.9 million oz, while Proven and Probable Mineral Reserves for gold remained unchanged to 477,000 oz. On a silver equivalent basis, Mineral Reserves decreased 4% year on year to 82.0 million oz (at a silver to gold ratio of 80:1) due to depletion at each mine, offset by conversion of Resources to Reserves at Bolanitos and El Compas.  

Measured and Indicated Mineral Resources for silver increased by 6% to 29.0 million oz and Measured and Indicated Mineral Resources for gold decreased by 22% to 226,500 oz gold. Silver equivalent Measured and Indicated Mineral Resources were down slightly to 47.1 million oz due mainly to reductions at Bolanitos, El Cubo and Compas offset by successful exploration at Guanacevi on the newly leased El Porvenir and El Curso properties, where silver equivalent ounces increased 22% year on year.

Inferred Mineral Resources for silver increased by 4% to 60.7 million oz due to the success of the 2019 drilling programs at Guanacevi and Parral.  Inferred Mineral Resources for gold decreased by 11% to 287,000 oz due to less exploration success at Bolanitos and El Compas.  Silver equivalent Inferred Mineral Resources were down slightly to 83.7 million oz.

Mineral Reserve and Resource Estimates at December 31, 2019(1-23)

Silver-Gold Reserves

 

Tonnes

Ag g/t

Au g/t

Ag oz

Au oz

Ag Eq oz

Compared
to 2018

Guanaceví

155,000

276

0.70

1,374,000

3,500

1,654,000

143%

Bolañitos

39,000

68

2.56

86,000

3,300

350,000

(78%)

El Compas

42,000

64

3.65

87,000

5,000

487,000

(2%)

Total Proven

236,000

203

1.54

1,547,000

11,800

2,491,000

(35%)

Guanaceví

560,000

240

0.66

4,326,000

11,800

5,270,000

(30%)

Bolañitos

327,000

43

2.44

455,000

25,700

2,511,000

111%

El Compas

53,000

82

4.96

141,000

8,500

821,000

100%

Terronera

5,587,000

208

2.33

37,440,000

419,000

70,960,000

-

Total Probable

6,527,000

202

2.22

42,362,000

465,000

79,562,000

(2%)

Total P&P

6,763,000

202

2.19

43,909,000

476,800

82,053,000

(4%)

 

 

 

 

Silver-Gold Resources

 

Tonnes

Ag g/t

Au g/t

Ag oz

Au oz

Ag Eq oz

Compared
to 2018

Guanaceví

78,000

377

0.64

947,000

1,600

1,075,000

168%

Bolañitos

33,000

124

1.89

131,000

2,000

291,000

(77%)

El Cubo

19,000

224

1.89

140,000

1,200

236,000

(70%)

El Compas

2,000

123

6.27

9,000

500

49,000

43%

Total Measured

132,000

287

1.23

1,227,000

5,300

1,651,000

(33%)

Guanaceví

1,062,000

331

0.85

11,305,000

29,100

13,633,000

22%

Bolañitos

502,000

160

1.95

2,588,000

31,400

5,100,000

(10%)

El Cubo

32,000

209

2.03

214,000

2,100

382,000

(83%)

El Compas

32,000

69

4.79

64,000

6,400

576,000

(49%)

Guadalupe y Calvo

1,861,000

119

2.38

7,120,000

142,400

18,512,000

-

Parral (new)

433,000

271

-

3,771,000

-

3,771,000

1461%

Total Indicated

3,922,000

199

1.68

25,062,000

211,400

41,974,000

7%

Total M&I

4,054,000

202

1.68

26,289,000

216,700

43,625,000

5%

 

Tonnes

Ag g/t

Au g/t

Ag oz

Au oz

Ag Eq oz

Compared
to 2018

Guanaceví

778,000

406

0.99

10,155,000

24,900

12,147,000

26%

Bolañitos

832,000

113

2.31

3,031,000

61,700

7,967,000

5%

El Cubo

463,000

163

1.89

2,419,000

28,200

4,675,000

(47%)

El Compas

81,000

90

6.77

232,000

17,500

1,632,000

(52%)

Terronera

1,080,000

208

2.26

7,239,000

79,000

13,559,000

-

Guadalupe y Calvo

154,000

94

2.14

465,000

10,600

1,313,000

-

Parral (new)

3,160,000

324

0.21

32,930,000

21,800

34,674,000

9%

Total Inferred

6,548,000

269

1.16

56,471,000

243,700

75,967,000

0%

Silver-Lead-Zinc Resources

 

Tonnes

Ag g/t

Au g/t

Ag oz

Au oz

Pb%

Zn%

Ag Eq oz

Compared
to 2018

Indicated

 

Guanacevi

363,000

208

0.26

2,420,500

3,100

0.78

1.32

2,668,500

-

Parral (Cometa)

180,000

55

1.17

300,000

6,800

3.20

3.30

844,000

(87%)

Total Indicated

543,000

156

0.57

2,720,500

9,900

1.58

1.98

3,512,500

(61%)

Inferred

 

 

Guanacevi

488,000

132

0.16

2,076,000

2,500

1.36

2.54

2,276,000

-

Parral (Cometa)

880,000

74

1.45

2,100,000

41,000

3.27

3.24

5,380,000

(4%)

Total Inferred

1,368,000

95

0.99

4,176,000

43,500

2.59

2.99

7,656,000

(3%)

Notes: 

  • Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability. There is no certainty that any or all part of the Mineral Resources will be converted into Mineral Reserves.
  • The Inferred Mineral Resource in this estimate has a lower level of confidence than that applied to an Indicated Mineral Resource and must not be converted to a Mineral Reserve. It is reasonably expected that the majority of the Inferred Mineral Resource could be upgraded to an Indicated Mineral Resource with continued exploration.
  • The Mineral Resources in this estimate were calculated using the Canadian Institute of Mining, Metallurgy and Petroleum (CIM), CIM Standards on Mineral Resources and Reserves, Definitions and Guidelines prepared by the CIM Standing Committee on Reserve Definitions and adopted by CIM Council.
  • Mineral Resources are exclusive of and in addition to Mineral Reserves.
  • Guanacevi Mineral Resource and Mineral Reserve cut-off grades are based on a 182 g/t silver equivalent for Santa Cruz Sur of Guanacevi, 340 g/t silver equivalent for the El Curso concession of Guanacevi and 218 g/t silver equivalent for Santa Cruz, North Porvenir and Milache of Guanaceví; Metallurgical recoveries were 83.3% silver and 84.5% gold for Guanaceví
  • Bolañitos, Mineral Resource and Mineral Reserve cut-off grades are based on a 166 g/t silver equivalent for the Lucero ramp, 206 g/t for the La Luz ramp and 168 g/t for San Miguel of Bolanitos. Metallurgical recoveries were 71.9% silver and 89.0% gold for Bolañitos
  • El Cubo Mineral Resource cut-off grades are based on a 196 g/t silver equivalent for Area II (that comprises Dolores Mine) of El Cubo and 238 g/t silver equivalent for Areas I&IV (that comprise Santa Cecilia and San Nicolas Mines) of El Cubo.
  • El Compas Mineral Resource and Mineral Reserve cut-off grades are based on a 3.46 g/t gold equivalent. Metallurgical recoveries were 70.0% silver and 82.5% gold for El Compas
  • Mineral Resource cut-off grades for Terronera was 150 g/t silver equivalent and the Mineral Reserve cut-off grades for Terronera and La Luz Deposits were 165 g/t and 222 g/t silver equivalent respectively. Metallurgical recoveries were 84.6% silver and 80.4% gold for Terronera
  • Mineral Resource cut-off grades are based on a 150 g/t silver equivalent for Guadalupe y Calvo
  • Mineral Resource cut-off grades at Parral vary: 130 g/t silver equivalent for most veins, 200 g/t silver for Sierra Plata, and US$55/t NSR for Cometa.
  • Mining recoveries of 93% were applied for Guanaceví, Bolañitos and El Compas and 95% for Terronera for Mineral Reserve Estimate calculations. Minimum mining widths were 0.8 metres for Mineral Reserve Estimate calculations.
  • Dilution factors for Mineral Reserve Estimate calculations averaged 35% for Guanaceví, 33.66% for Bolañitos and 36.2% for El Compas and 11% for Terronera. Dilution factors are calculated based on internal stope dilution calculations and external dilution factors of 24% for cut and fill mining and 40% for long hole mining at Guanaceví and Bolañitos
  • Silver equivalent grades and ounces are based on a 80:1 silver:gold ratio and calculated including only silver and gold.
  • Probable Mineral Reserves for Terronera includes the Terronera and La Luz Deposits.
  • Inferred Mineral Resources for Terronera includes the Terronera, La Luz and Real Alto Area.
  • Indicated and Inferred Mineral Resources for "Parral (new)" includes the Colorada, Palmilla, San Patricio, and Sierra Plata areas.
  • The La Colorada structure (Parral) does not contain gold on an economic scale.
  • Price assumptions for Guanaceví, Bolañitos, El Compas and El Cubo are US$16.34/oz for silver, US$1,279/oz for gold, US$0.82/lb for lead and US$0.90/lb for zinc.
  • Price assumptions for Terronera are US$17.50/oz for silver, US$1,275/oz for gold.
  • Price assumptions for Parral are US$15/oz for silver, US$1,275/oz for gold.
  • Figures in tables are rounded to reflect estimate precision; small differences generated by rounding are not material to the estimates.
  • Effective November 31, 2019, Endeavour Silver announced suspension of operations at the El Cubo Mine, while Management evaluates other alternatives including final closure. 2018 Reserve subtotals and totals include El Cubo for comparative purposes.

Godfrey Walton, M.Sc., P.Geo., President and COO of Endeavour, is the Qualified Person who reviewed and approved this news release and the technical information contained in these Mineral Reserve and Resource Estimates. A Quality Control sampling program of reference standards, blanks and duplicates has been instituted 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.

The Mineral Reserve Estimate for Terronera in the technical report titled “Updated Technical Report for the Terronera Project, Jalisco State, Mexico” effective February 12, 2019 and signed April 30, 2019 were undertaken by Independent Qualified Persons Eugene Puritch, P.Eng., FEC, CET, Yungang Wu, P.Geo., David Burga, P.Geo., D. Gregory Robinson, P.Eng., Peter J Smith P. Eng, Eugenio Iasillo P.E., Humberto Preciado P.E., and Benjamin Peacock, P. Eng.

The Parral Mineral Resources disclosed in this press release have been estimated by Mr. Jose Texidor Carlsson, P.Geo., an employee of Roscoe Postle Associates (RPA) and independent of Endeavour. By virtue of his education and relevant experience, Mr. Texidor Carlsson is a “Qualified Person” for the purpose of National Instrument 43-101. The Mineral Resources have been classified in accordance with CIM Definition Standards for Mineral Resources and Mineral Reserves (May, 2014). Mr. Texidor Carlsson, P.Geo. has read and approved the contents of this press release as it pertains to the disclosed Parral Mineral Resource estimates.

Release of 2019 Financial Results and Conference Call

The 2019 Fourth Quarter and year-end consolidated financial results will be released before market on Monday, February 24, 2020 and a telephone conference call will be held the same day at 10:00am PT (1:00pm ET). To participate in the conference call, please dial the numbers below. No pass-code is necessary.

Toll-free in Canada and the US: 1-800-319-4610
Local Vancouver: 604-638-5340
Outside of Canada and the US: +604-638-5340

A replay of the conference call will be available by dialing 1-800-319-6413 in Canada and the US (toll-free) or +604-638-9010 outside of Canada and the US. The required pass-code is 4069#. The audio replay and a written transcript will also be made available on the Company's website at www.edrsilver.com.

About Endeavour Silver – Endeavour Silver Corp. is a mid-tier precious metals mining company that owns and operates three high-grade, underground, silver-gold mines in Mexico. Endeavour is currently advancing the Terronera mine project towards a development decision and exploring its portfolio of exploration and development projects in Mexico and Chile to facilitate its goal to become a premier senior silver producer.  Our philosophy of corporate social integrity creates value for all stakeholders.

SOURCE Endeavour Silver Corp. 

Contact Information
Galina Meleger, Director Investor Relations
Toll free: (877) 685-9775
Tel: (604) 640-4804
Fax: (604) 685-9744
Email: [email protected]
Website: www.edrsilver.com

In Europe:
Swiss Resource Capital AG
Jochen Staiger
[email protected]
www.resource-capital.ch

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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 reserves and resources and its anticipated performance in 2020, Mineral Resource and Reserve Estimates, and the timing and results of various future 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; operating or technical difficulties in mineral exploration, development and mining activities; the reliability of Mineral Resource and Reserve Estimates 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, the reliability of Mineral Resource and Reserve Estimates, 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.

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Swiss Resource Capital AG will use the information you provide in this form to keep in touch with you and to provide you with updates and marketing information. To receive our news, you still have to give us permission to send you E-Mails below.

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