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Endeavour Silver Expands High-Grade Silver-Gold Mineralized Zones in Terronera and La Luz Veins on the Terronera Property in Jalisco, Mexico

Longitudinal Section TerroneraClick here for high-resolution version

VANCOUVER, BC--(Marketwired - March 16, 2017) - Endeavour Silver Corp. (EXK) (EDR.TO) announces that exploration drilling on the Terronera property in Jalisco State, Mexico continues to expand the recently discovered high-grade, silver-gold mineralized zones to greater depths within the Terronera vein and at shallow depths within the La Luz vein.

Recent drilling in the Terronera vein has expanded the main high-grade, mineralized zone down to 400 metre (m) depths, still open to depth and to the southeast (view long section here). In addition to the main zone, drilling intercepted mineralized footwall (Fw) and hangingwall (Hw) splays. In some places the splays merge to form one very thick mineralized zone (eg. Hole TR11-3). None of the drill results reported herein are included in the upcoming resource estimate and pre-feasibility study (PFS) for Terronera, and they indicate clear potential to expand resources within the Terronera vein.

Drill results from five holes* previously reported in October and December 2016, plus four new drill holes reported herein, are summarized in the table below. Highlights include 230 grams per tonne (gpt) silver and 1.8 gpt gold (359 gpt AgEq) over 16.3 m true width, or 10.5 opT AgEq over 53.5 ft, with an internal interval assaying 3,490 gpt silver and 8.9 gpt gold (4,110 gpt AgEq) over 0.3 m true width, or 119.8 opT AgEq over 1.0 ft, in hole TR11-3.

                         
        From   True width   Au   Ag   AgEq
Hole   Structure   (m)   (m)   (gpt)   (gpt)   (gpt)
TR03-6*   Terronera   516.05   2.0   1.9   127   259
    Including   516.05   1.1   3.3   152   386
TR09-6*   Terronera   505.10   6.7   5.0   226   576
    Including   511.40   0.7   16.9   527   1,710
TR10.5-1*   Terronera   380.75   6.6   2.9   717   923
    Including   386.90   0.4   3.0   4,860   5,069
    Terronera   419.15   4.5   1.8   71   199
TR12-6*   Including   423.35   0.3   3.9   206   479
    Fw Terronera   436.50   1.6   0.3   243   268
    Including   436.50   0.1   0.5   764   801
TR14-7*   Terronera   363.90   4.8   3.9   109   383
    Including   372.25   0.5   11.1   246   1,020
TR11-3   Terronera   498.55   16.3   1.8   230   359
    Including   515.25   0.3   8.9   3,490   4,110
    Terronera   32.00   1.7   6.9   82   562
KP16-01A   Including   34.75   0.2   16.9   125   1,308
    Fw Terronera   38.00   7.7   1.8   116   243
    Including   48.80   0.7   3.6   300   553
    Hw Terronera   158.45   3.5   2.1   192   337
KP16-02   Including   162.35   0.6   5.4   355   736
    Terronera   195.10   7.1   3.0   118   326
    Including   210.90   0.1   12.0   294   1,134
    Terronera   263.15   7.5   0.7   307   356
KP16-04   Including   271.20   0.6   1.4   1,160   1,259
    Fw Terronera   320.30   1.9   0.4   275   302
    Including   321.30   0.4   1.2   860   942
Silver equivalents are calculated at a ratio of 70:1 silver:gold.
                         

Recent drilling in the La Luz vein, located about 2.2 kilometres northeast of the Terronera vein, has expanded the new high-grade, mineralized zone over 500 m long by 250 m deep starting approximately 100 m below surface and still open to surface and to depth (view long section here). None of the drill results reported herein are included in the upcoming resource estimate and pre-feasibility study (PFS) for Terronera, and they indicate clear potential to expand resources within the La Luz vein.

Drill results from seven holes* previously reported in December 2016, plus seven new drill holes reported herein, are summarized in the table below. Highlights include 63 gpt silver and 57.0 gpt gold (4,054 gpt AgEq) over 2.2 m true width, or 118.0 opT AgEq over 7.2 ft, with an internal interval assaying 340 gpt silver and 320.0 gpt gold (22,740 gpt AgEq) over 0.3 m true width, or 663.0 opT AgEq over 1.0 ft, in hole LL-21.

                         
        From   True width   Au   Ag   AgEq
Hole   Structure   (m)   (m)   (gpt)   (gpt)   (gpt)
LL-02*   La Luz   207.45   1.1   58.6   408   4,512
    Including   208.61   0.3   238.0   1365   18,025
LL-04*   La Luz   244.10   1.2   4.0   194   478
    Including   244.40   0.2   12.2   751   1,605
LL-06*   La Luz   87.80   1.0   2.6   61   246
    Including   88.25   0.6   4.1   35   320
LL-07*   La Luz   113.90   1.4   3.1   202   418
    Including   113.90   0.7   6.1   233   661
LL-08*   La Luz   95.25   1.6   5.3   86   454
    Including   96.45   0.8   8.8   24   637
LL-10*   La Luz   127.40   3.3   2.3   140   303
    Including   130.45   0.4   5.6   176   568
LL-12*   La Luz   176.10   1.8   0.6   244   283
    Including   176.10   0.5   1.3   548   638
LL-13   La Luz   131.75   1.5   19.0   407   1,735
    Including   132.95   0.4   48.9   680   4,103
LL-14   La Luz   175.30   1.5   29.5   651   2,719
    Including   176.25   0.6   62.9   844   5,247
LL-17   La Luz   124.55   1.4   23.1   245   1,865
    Including   124.55   0.5   47.5   212   3,537
LL-18   La Luz   174.00   2.0   12.8   21   916
    Including   174.00   0.2   49.6   48   3,520
LL-19   La Luz   193.20   1.1   2.7   7   194
    Including   193.75   0.4   5.9   13   426
LL-20   La Luz   169.15   1.5   6.4   40   484
    Including   171.75   0.3   12.4   21   886
LL-21   La Luz   173.10   2.2   57.0   63   4,054
    Including   173.60   0.3   320.0   340   22,740
Silver equivalents are calculated at a ratio of 70:1 silver:gold.
                         

Bradford Cooke, CEO of Endeavour Silver, commented, "Although narrower than the Terronera vein, mineralization in the La Luz vein is much higher grade, more gold rich, and shallower in depth compared to Terronera. Both sets of drill results indicate the excellent exploration potential of the property. Several other veins hosting high-grade mineralization on surface north of the Terronera vein are scheduled for drilling this year. Two drill rigs are currently working on the Terronera property."

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 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.

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, the company has grown its mining operations 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 (symbol EDR) and on the NYSE (symbol EXK).

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 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, 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; 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.

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