Endeavour Silver Updates Reserve and Resource Estimates

Marketwired

VANCOUVER, BRITISH COLUMBIA--(Marketwired - Feb 24, 2014) - Endeavour Silver Corp. (EDR.TO)(EXK) released today updated NI 43-101 silver and gold reserve and resource estimates for its three producing silver mines in Mexico (the Guanaceví Mine in Durango State and the Bolañitos and El Cubo Mines in Guanajuato State) as well as one exploration project (San Sebastián Project in Jalisco State) as of December 31, 2013 using lower silver and gold prices compared to December 31, 2012.

Proven and probable reserves were down year-on-year due mainly to the lower metal prices used for the estimates. In response to the lower metal prices last year, the mine plan was revised to enhance cash-flow by accelerating production and deferring some lower priority underground mine development primarily at Bolañitos and Guanaceví, which also reduced the conversion of resources into reserves.

Measured and indicated resources were up in 2013 thanks to the Company's brownfields exploration programs which discovered new resources primarily at El Cubo and upgraded some inferred resources but, again in response to the lower metal prices, the exploration budget was reduced last year which likely reduced the expansion of resources.

Inferred resources were down last year as a result of the lower metal prices and reduced exploration budget.

Endeavour normally uses the industry best practice of three year trailing averages of silver and gold prices for estimating reserves and resources. To the end of 2013, these trailing price averages were approximately $1550 per ounce (oz) gold and $30 per oz silver. Management took the view that these trailing price averages were too aggressive in the short term for the estimation of reserves so elected to use US$1320 per oz gold and US$22 per oz silver prices to more accurately reflect its near term outlook.

The prices used for the resource estimates were 10% higher at US$1452 per oz gold and $24.20 per oz silver to reflect management's belief that the metal prices will likely be higher in the medium and longer terms. However, they are still significantly lower than the US$31 per oz silver and US$1550 per oz gold prices used in the previous reserve and resource estimates as of December 31, 2012.

The December 31, 2013 reserve and resource highlights are as follows:

2013 Reserve/Resource Highlights (Compared to December 31, 2012)

  • Silver Proven and Probable Reserves reduced by 50% to 11.6 million ounces (oz);
  • Gold Proven and Probable Reserves reduced by 37% to 139,400 oz;
  • Silver Equivalent Proven and Probable Reserves reduced by 41% to 25.9 million oz;
  • Silver Measured and Indicated Resources up 4% to 60.7 million oz;
  • Gold Measured and Indicated Resources up 6% to 556,300 oz;
  • Silver Equivalent Measured and Indicated Resources up 11% to 94.1 million oz;
  • Silver Inferred Resources reduced by 13% to 40.6 million oz;
  • Gold Inferred Resources reduced by 15% to 396,320 oz;
  • Silver Equivalent Inferred Resources reduced by 9% to 64.4 million oz;
    • Mineral resources are calculated exclusive of the mineral reserves
    • Proven Reserves are determined as being within 10 meters of underground development while Probable Reserves are a further 15 meters from underground development.
    • Mine plans are developed for the Proven and Probable Reserves and discounted for Measured and Indicated Resources and further discounted for the Inferred Resources.
    • Mineral reserves have demonstrated economic viability whereas mineral resources do not
    • 2012 silver equivalents based on 50:1 silver:gold ratio, base metals not included
    • 2013 silver equivalents based on 60:1 silver:gold ratio, base metals not included
    • All assumptions used are listed at the bottom of the reserve and resource summary table

Bradford Cooke, CEO, commented, "Reserve and resource growth took a back seat to our operational and financial performance last year due to the sharply lower precious metal prices. We responded promptly to the lower metal prices by reducing all costs including our exploration and development budgets which clearly impacted our ability to replace reserves and expand resources."

"However, with the El Cubo capital reconstruction program completed on time and under budget last year and all three mining operations now running smoothly, reserve and resource growth is back on the front burner for 2014. This year, we will continue to hone our mining operations, boost profit margins and return our focus to discovering and delineating ore at all of the three mining operations as well as at the emerging new high grade discovery at San Sebastián."

"Despite the sharp decline in precious metal prices year-on-year and the resulting reduction in reserves and resources at lower metal prices, we are confident that our talented exploration team led by Luis Castro, VP of Exploration, will continue to expand resources and our operations team led by Dave Howe, VP of Operations, will continue to convert those resources into reserves and enhance the mine lives of each of our mining operations."

Guanaceví

  • Silver Proven and Probable Reserves down 64% to 3.3 million ounces (oz)
  • Gold Proven and Probable Reserves down 65% to 5,800 oz
  • Silver Equivalent Proven and Probable Reserves down 64% to 3.7 million oz

  • Silver Measured and Indicated Resources up 17.5% to 17.5 million oz
  • Gold Measured and Indicated Resources up 53% to 37,200 oz
  • Silver Equivalent Measured and Indicated Resources up 33% to 19.7 million oz

  • Silver Inferred Resources down 2% to 12.1 million oz
  • Gold Inferred Resources down 9% to 20,200 oz
  • Silver Equivalent Inferred Resources down 1% to 13.3 million oz

Bolañitos

  • Silver Proven and Probable Reserves down 69% to 2.3 million ounces (oz)
  • Gold Proven and Probable Reserves down 64% to 37,300 oz
  • Silver Equivalent Proven and Probable Reserves down 64% to 4.6 million oz

  • Silver Measured and Indicated Resources down 50% to 4.6 million oz
  • Gold Measured and Indicated Resources down 44% to 78,100 oz
  • Silver Equivalent Measured and Indicated Resources down 43% to 9.3 million oz

  • Silver Inferred Resources up 31% to 9.6 million oz
  • Gold Inferred Resources up 31% to 111,700 oz
  • Silver Equivalent Inferred Resources up 40% to 16.3 million oz

El Cubo

  • Silver Proven and Probable Reserves down by 6% to 5.9 million ounces (oz)
  • Gold Proven and Probable Reserves down by 5% to 96,300 oz
  • Silver Equivalent Proven and Probable Reserves up by 6% to 17.6 million oz

  • Silver Measured and Indicated Resources up 139% to 10.6 million oz
  • Gold Measured and Indicated Resources up 115% to 165,000 oz
  • Silver Equivalent Measured and Indicated Resources up 148% to 20.5 million oz

  • Silver Inferred Resources down 32% to 7.7 million oz
  • Gold Inferred Resources down 41% to 130,100 oz
  • Silver Equivalent Inferred Resources 31% to 15.5 million oz

San Sebastián

  • Silver Indicated Resources increased 60% to 18.2 million oz
  • Gold Indicated Resources of increased 25% to 86,300 oz
  • Silver Equivalent Indicated Resources increased 57% to 23.4 million oz

  • Silver Inferred Resources down 31% to 13.4 million oz
  • Gold Inferred Resources down 8% to 126,800 oz
  • Silver Equivalent Inferred Resources down 20 to 21.0 million oz

Endeavour's other exploration projects in Mexico were not drilled in 2013 (Guadalupe y Calvo and Parral Projects in Chihuahua and Arroyo Seco Project in Michoacán) so their resource estimates remain unchanged. The Guadalupe y Calvo resources were estimated in 2012 and the Parral and Arroyo Seco resources were estimated at the end of 2010.

The Qualified Person for the Mineral Resource and Reserve Estimates was Mike Munroe, BSc, MSc, SME Registered Member 4151306RM. The reports for Guanaceví, Bolañitos, El Cubo and San Sebastián will be completed and filed on SEDAR within 45 days of this news release. The Guadalupe y Calvo report was authored by Charley Murahwi, M.Sc., P.Geo, FAusIMM and Alan San Martin, MAusIMM(CP) and previously filed on SEDAR in March 2013. The Arroyo Seco report was authored by David St. Clair Dunn B.Sc., P.Geo and Barry Devlin M.Sc., P. Geo, both of whom are Qualified Persons, and the report was previously filed on SEDAR in March 2011.

Godfrey Walton, M.Sc., P.Geo., President and COO of Endeavour, is the Qualified Person who reviewed and approved the technical information contained in this news release.

These reserve and resource statements were classified following the definitions and guidelines of the Canadian Institute of Mining, Metallurgy and Petroleum CIM standards and definitions on Mineral Resources and Reserves and the guidelines of NI 43-101.

ENDEAVOUR SILVER CORP.

About Endeavour Silver - Endeavour is a mid-tier silver mining company focused on growing its profits, production, reserves and resources in Mexico. Since start-up in 2004, Endeavour has posted nine consecutive years of accretive growth of its silver mining operations. The organic expansion programs now underway at Endeavour's three silver-gold mines in Mexico combined with its strategic acquisition and exploration programs should facilitate Endeavour's goal to become a premier senior silver producer.

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 2014 and the timing and results of exploration drill programs. 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, among others, 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; 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; fluctuations in the prices of commodities and their impact on reserves and resources 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.

Silver-Gold Reserves & Resources (as of Dec 31, 2013)
Reserves Tonnes Ag
g/t
Au
g/t
Ag
oz
Au
oz
Ag
oz Eq
Guanaceví 327,800 281 0.51 2,961,900 5,300 3,279,900
Bolañitos 380,530 156 2.50 1,910,300 30,500 3,740,300
El Cubo 752,500 138 2.16 3,330,300 52,200 6,462,300
Total Proven 1,460,830 175 1.87 8,202,500 88,000 13,482,500
Guanaceví 34,600 342 0.46 380,800 500 410,800
Bolañitos 98,300 134 2.17 424,200 6,800 832,200
El Cubo 615,400 131 2.23 2,595,700 44,100 5,242,700
Total Probable 748,300 141 2.14 3,400,700 51,400 6,485,700
Total Proven & Probable 2,209,130 163 1.96 11,603,200 139,400 19,968,200
Resources Tonnes Ag
g/t
Au
g/t
Ag
oz
Au
oz
Ag
oz Eq
Guanaceví 132,000 183 0.29 777,200 1,300 855,200
Bolañitos 75,900 132 1.39 322,800 3,400 526,800
El Cubo 660,100 158 2.87 3,357,800 60,800 7,005,800
Total Measured 868,000 160 2.35 4,457,800 65,500 8,387,800
Guanaceví 1,701,200 242 0.57 13,221,400 31,500 15,111,400
Bolañitos 1,191,800 111 1.95 4,263,300 74,700 8,745,300
El Cubo 1,570,500 144 2.06 7,263,100 104,200 13,515,100
San Sebastián 2,476,000 229 1.08 18,216,200 86,300 23,394,200
Guadalupe y C 1,861,000 119 2.38 7,147,300 142,500 15,697,300
Total Indicated 8,800,500 177 1.55 50,111,300 439,200 76,463,300
Total Measured and Indicated 9,668,500 176 1.62 54,569,100 504,700 84,851,100
Resources - Inferred Tonnes Ag
g/t
Au
g/t
Ag
oz
Au
oz
Ag
oz Eq
Guanaceví 1,155,100 253 0.46 9,384,700 17,100 10,410,700
Bolañitos 2,145,150 140 1.62 9,642,200 111,720 16,345,400
El Cubo 1,477,900 174 3.40 7,729,800 130,100 15,535,800
San Sebastián 2,376,000 175 1.66 13,390,600 126,800 20,998,600
Guadalupe y C 154,000 94 2.14 464,600 10,600 1,100,600
Total Inferred 7,308,150 173 1.69 40,611,900 396,320 64,391,100
Silver-Gold-Lead-Zinc Resources (as of Sept 30, 2013)
Resources - Indicated Tonnes Ag
g/t
Au
g/t
Ag
oz
Au
oz
Ag
oz Eq
Parral 1,631,000 49 0.90 2,589,900 47,200 5,421,900
Santa Cruz Mine XC-2 (Ag-Pb-Zn) - - - - - -
Buena Fe (Ag-Pb-Zn) 655,000 166 0.21 3,495,700 4,400 3,759,700
Total Indicated 2,286,000 83 0.70 6,085,600 51,600 9,181,600
Total Indicated 2,286,000 83 0.70 6,085,600 51,600 9,181,600
Resources - Inferred Tonnes Ag
g/t
Au
g/t
Ag
oz
Au
oz
Ag
oz Eq
Guanaceví 646,000 129 0.15 2,687,300 3,100 2,873,300
Parral 1,303,000 63 0.88 2,658,900 36,900 4,872,900
Arroyo Seco 738,000 220 0.07 5,220,000 1,700 5,322,000
Total Inferred 2,687,000 122 0.48 10,566,200 41,700 13,068,200
Total Pb-Zn 4,973,000 104 0.58 16,651,800 93,300 22,249,800
Grand Total 24,158,780 159 1.46 123,436,000 1,133,720 191,460,200

Notes:

  1. Reserve cut-off grade at Guanaceví is 217 gpt Ag equivalent
  2. Reserve cut-off grade at Bolanitis is 155 gpt Ag equivalent
  3. Reserve cut-off grade at El Cubo is 130 gpt Ag equivalent
  4. Minimum mining width is 0.8m at Cubo, 1.8m at Guanaceví and 2.0m at Bolañitos.
  5. Dilution factor at Cubo is 75% for all mining methods inclusive of dilution to minimum mining width. At Bolañitos, the dilution factor is 15% on cut&fill, and 25% on longhole. At Guanaceví, dilution factor is 15% on cut&fill.
  6. Resource cut-off grade for all three mines is 100 g/t Ag equivalent
  7. Reserves and Resources Silver Equivalents are based on a 60:1 silver to gold ratio
  8. Resource cut-off grade for San Sebastián is 100 g/t Ag equivalent.
  9. Resource cut-off grade for the Guadalupe y Calvo property is 100 g/t Ag equivalent
  10. Resource cut-off grade for Parral project is an NSR of $40 using with the metal prices below
  11. Resource cut-off grade for Arroyo Seco is 100 g/t Ag
Net Smelter Return (NSR) Cut-off Parameters for the Parral Project
Description Parameter
Gold Price US $1,000 per oz
Silver Price US $16 per oz
Lead Price US $0.65 per lb
Zinc Price US $0.65 per lb
Gold Recovery (Overall) 75%
Silver Recovery (Overall) 71%
Lead Recovery (Overall) 80%
Zinc Recovery (Overall) 74%
Smelter Terms Based on generic contract
Contact:
Endeavour Silver Corp.
Meghan Brown
Director Investor Relations
Toll free: (877) 685-9775 or (604) 640-4804
mbrown@edrsilver.com
www.edrsilver.com

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