Tinka Confirms Indium With Zinc Mineralization At Ayawilca, Peru

February 23rd, 2015
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Re-assays of zinc intercepts for indium include 212.9 metres at 5.3 % zinc & 83 g/t indium in A13-05, including 10.0 metres at 12.9 % zinc & 670 g/t indium

Vancouver, Canada — Tinka Resources Limited (“Tinka” or the “Company”) (TSXV: TK) (OTCPK: TKRFF) is pleased to announce results of a re-assay program for indium of all significant zinc drill intersections from the Ayawilca project, Peru. These results confirm that high levels of indium occur with the zinc mineralization, particularly in the deeper intersections. Indium has the potential to be an important and valuable addition to the zinc mineralization at Ayawilca, with a current market price similar to silver, at around US$17 per ounce of indium (US$0.55 per gram). Zinc is currently trading at US$2,047 per tonne on the London Metal Exchange.

Key Ayawilca zinc-indium drill intersections include:
  • A13-05: 212.9 metres at 5.3 % zinc & 83 grams per tonne (g/t) indium from 130.3 metres depth, including 16.0 metres at 18.1 % zinc & 120 g/t indium from 150.0 metres depth, and10.0 metres at 12.9 % zinc & 670 g/t indium from 316.0 metres depth;
  • A14-22: 32.8 metres at 7.4 % zinc & 66 g/t indium from 211.2 metres depth, including 5.8 metres at 16.8 % zinc & 170 g/t indium from 228.0 metres depth, and 31.0 metres at 6.3% zinc & 101 g/t indium from 283.5 metres depth;
  • A12-08: 36.5 metres at 6.5 % zinc & 63 g/t indium from 162.0 metres depth, and 38.0 metres at 4.6 % zinc & 117 g/t indium from 266.0 metres depth;
  • A12-04A: 20.0 metres at 7.1 % zinc & 127 g/t indium from 260.0 metres depth, including 12.0 metres at 10.5 % zinc & 200 g/t indium from 266.0 metres depth.

The indium results for all significant zinc drill intercepts (see press release February 10, 2015), together with the zinc results previously released, are provided in Table 1.

Dr. Graham Carman, Tinka’s President and CEO, stated: “These high concentrations of indium, occurring with the zinc mineralization at Ayawilca, could add an important credit to the zinc, along with silver.”

“Indium is a specialty metal used in the high-technology industry, with a current market value similar to silver. Indium has three almost unique properties: like all metals it conducts electricity, but it is also transparent in its oxide form, and reflects heat. Indium-tin oxide (ITO) is the dominant use of indium in thin-film technology. ITO is extensively used in flat panel displays and liquid crystal displays (LCDs), in mobile phones, laptops, monitors, televisions, and digital cameras. Indium metal is also very soft, and is used in specialized soldering and fusing applications. It is also malleable and ductile at cold conditions.”

“Almost the entire production of indium in the world comes from the processing and smelting of zinc residues. Countries with major refinery production include China, South Korea, Japan, Canada, Belgium and Peru. The main customers of indium are industrial countries with high-technology production locations. Japan is the largest consumer of primary indium accounting for about a third of global consumption.*”


* Reference: Schwarz-Schampera, Ulrich, and Herzig, Peter M., 2002, Indium: Geology, Mineralogy, and Economics. Springer-Verlag.

The qualified person, Dr. Graham Carman, Tinka’s President and CEO, and a Fellow of the Australasian Institute of Mining and Metallurgy, has reviewed and verified the technical contents of this release.

About Tinka Resources Limited

Tinka is a resource acquisition and exploration company with projects in Peru. Tinka’s focus is on its 100%-owned Ayawilca and Colquipucro projects in the highly mineralized zinc-lead-silver belt of central Peru, 200 kilometres north of Lima. The Ayawilca project, located 40 kilometres from Peru’s largest historic zinc mine, Cerro de Pasco, has the potential to be a major zinc sulphide discovery. The nearby Colquipucro silver oxide project is a near-surface, sand-stone-hosted, silver oxide deposit with a current inferred resource containing 32 million ounces silver with potential for expansion.

On behalf of the Board,

“Graham Carman”
Dr. Graham Carman, President & CEO

Investor Information:
www.tinkaresources.com
1305 — 1090 West Georgia St., Vancouver, BC, V6E 3V7
Seema Sindwani +1 647-478-3017
info@tinkaresources.com

Forward Looking Statements. Certain information in this news release contains forward-looking statements and forward-looking information within the meaning of applicable securities laws (collectively “forward-looking statements”). All statements, other than statements of historical fact are forward-looking statements. Forward-looking statements are based on the beliefs and expectations of Tinka as well as assumptions made by and information currently available to Tinka’s management. Such statements reflect the current risks, uncertainties and assumptions related to certain factors including, without limitations, capital and other costs varying significantly from estimates, production rates varying from estimates, changes in world metal markets, changes in equity markets, uncertainties relating to the availability and costs of financing needed in the future, equipment failure, unexpected geological conditions, imprecision in resource estimates or metal recoveries, success of future development initiatives, competition, operating performance, environmental and safety risks, delays in obtaining or failure to obtain necessary permits and approvals from local authorities, community relations, and other development and operating risks. Should any one or more of these risks or uncertainties materialize, or should any underlying assumptions prove incorrect, actual results may vary materially from those described herein. Although Tinka believes that assumptions inherent in the forward-looking statements are reasonable, forward-looking statements are not guarantees of future performance and accordingly undue reliance should not be put on such statements due to the inherent uncertainty therein. Except as may be required by applicable securities laws, Tinka disclaims any intent or obligation to update any forward-looking statement.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

Notes to Table 1:
Down-hole zinc intersections were calculated using a 1% zinc cut-off grade over 6 metre intervals. All zinc results, including drill hole collar information, were released on February 10, 2015. True widths of the intercepts in Table 1 are believed to be at least 75% of the down-hole widths, as the mineralization is interpreted to be generally gently dipping. Drill holes are diamond core holes with recoveries generally at or close to 100%. The drill core is marked up, logged, and photographed on site. The cores are cut in half at the Company’s core storage facility, with half-cores stored as a future reference. Half-core is bagged on average over 2 metre composite intervals, and sent to SGS labora-tory in Lima for assay in batches. Standards and blanks were inserted into each batch prior to departure from the Company’s core storage facilities. At the laboratory samples are dried, crushed to 100% passing 2mm, then 500 grams pulverized for multi-element analysis by ICP (AES or MS) using multi-acid digestion. Samples assaying over 1% zinc, lead, or copper were re-assayed using precise ore-grade AAS techniques. Samples which assayed approximately 200 ppm tin or greater in the ICP analysis were re-assayed for tin by fusion with sodium peroxide and AAS finish (SGS laboratory method SGS-MN-ME-112). Re-assays for indium were achieved by analysis of archived sample pulps, us-ing ICP-MS with a multi-acid digestion. Over-limits for indium (> 500 g/t In) were re-assayed using 4 acid digestion with AAS finish (SGS method AAS41B).


Table 1. Summary of Significant Zinc (Indium) Drill Results at Ayawilca (NEW indium results highlighted)
Drill hole From
(m)
To
(m)
Int
(m)
Zn
(%)
Pb
(%)
Ag
(g/t)
Cu
(%)
Sn
(%)
In
(g/t)
Ayawilca Prospect
/ Comment
A13-05 130.30 343.20 212.90 5.34 0.17 15 0.03 83 West
including 130.30 179.50 49.20 10.07 0.55 32 0.16 51
including 150.00 166.00 16.00 18.14 0.05 39 0.25 120
and 316.00 326.00 10.00 12.93 0.02 42 0.04 670
A14-22 170.00 318.50 148.50 4.33 0.36 15 0.03 55 West
including 211.20 244.00 32.80 7.44 0.02 10 0.02 66
including 228.00 233.75 5.75 16.76 0.02 24 0.07 170
and 283.50 314.50 31.00 6.31 0.39 13 0.02 101
including 293.90 295.90 2.00 28.94 5.84 139 0.09 606
A12-08 162.00 232.00 70.00 4.77 0.16 5 0.03 33 Central
including 170.00 174.00 4.00 11.66 0.03 9 0.05
and 195.50 232.00 36.50 6.51 0.02 5 0.06 63
including 195.50 214.50 19.00 9.02 0.02 6 0.08 74
and 266.00 304.00 38.00 4.61 0.02 7 0.03 117 No recovery 304-314.1 m
A14-19 184.00 328.90 144.90 3.88 0.03 7 0.02 36 West
including 250.00 268.00 18.00 7.11 0.01 11 0.03 27
A13-06 170.00 196.00 26.00 2.20 0.05 5 0.01 11 West
and 210.00 322.00 112.00 3.71 0.04 6 0.01 33
including 262.00 322.00 60.00 4.67 0.07 7 0.01 44
including 264.65 278.00 13.35 8.42 0.20 14 0.02 25
and 312.00 322.00 10.00 7.85 0.07 7 0.01 64
A14-18 331.20 360.00 28.80 5.62 0.17 10 0.02 27 East
including 342.50 350.00 7.50 8.75 0.30 20 0.04 60
and 375.10 412.00 36.90 5.62 0.41 9 0.04 14
A14-33 92.00 95.40 3.40 4.99 0.23 27 0.03 1.56 6 West
and 114.00 120.00 6.00 1.14 0.06 19 0.01 1
and 131.50 136.00 4.50 2.49 0.28 33 0.02 1
and 184.00 206.00 22.00 1.62 1.04 22 0.02
and 268.00 345.10 77.10 4.02 0.03 4 0.01 22
including 270.90 279.70 8.80 13.49 0.13 11 0.02 8
A14-20 164.00 166.20 2.20 20.96 0.11 80 0.37 11 West
and 179.85 214.00 34.15 5.27 0.25 22 0.04 26
including 179.85 191.80 11.95 10.52 0.40 23 0.02 75
including 179.85 184.00 4.15 24.80 1.00 58 0.04 205
and 242.00 250.00 8.00 2.23 1.28 181 0.09
and 268.00 310.00 42.00 4.26 0.08 25 0.04 2
including 299.80 301.00 1.20 18.64 0.14 52 0.01 30
A14-26 207.50 230.00 22.50 2.82 2.04 61 0.08 1 West
and 260.00 303.80 43.80 5.38 0.16 13 0.04 86
including 292.00 303.80 11.80 13.89 0.04 22 0.08 315
A13-04 181.85 220.85 39.00 3.69 0.06 4 0.02 44 Central
and 266.00 332.00 66.00 2.28 0.11 4 0.02 28
A13-02 236.00 328.00 92.00 2.90 0.10 5 0.02 36 Central
A14-32 203.30 218.00 14.70 3.23 0.69 18 0.07 0.24 3 West
and 230.00 269.20 39.20 2.19 0.01 3 0.02 10
A14-24 247.35 257.60 10.25 1.50 0.08 35 0.13 0.16 22 East
and 267.00 272.20 5.2 3.95 0.01 6 0.05 158
and 306.80 308.00 1.20 10.43 0.12 19 0.14 221
and 319.50 366.00 46.50 3.97 0.36 30 0.01 88
and 389.40 397.10 7.70 5.14 0.61 31 0.01 57
and 448.00 450.00 2.00 0.50 0.24 151 1.17 30
DD53 226.00 280.00 54.00 3.50 0.12 8 0.03 49 West
and 292.00 315.10 23.10 2.54 0.03 2 0.01 19
A14-29 203.30 204.60 1.30 12.88 0.10 13 0.10 130 East
and 321.40 329.80 8.40 5.86 0.06 7 0.06 12
and 338.00 354.00 16.00 3.03 0.04 3 0.01 22
and 400.00 442.00 42.00 3.25 0.28 15 0.06 12
including 400.00 412.00 12.00 7.03 0.02 4 0.08 10
A14-31 98.00 104.00 6.00 5.20 0.34 45 0.02 43 East
and 200.00 212.00 12.00 5.16 1.81 97 0.12 100
and 310.00 315.00 5.00 3.35 0.23 11 0.03 25
and 322.10 325.50 3.40 14.82 0.27 10 0.05 14
and 411.20 414.20 3.00 3.34 0.22 7 0.02 10
A12-04A 260.00 280.00 20.00 7.12 0.02 9 0.04 127 West
including 266.00 278.00 12.00 10.51 0.03 14 0.05 200
DD71 196.00 200.00 4.00 30.90 0.32 63 0.13 3 West
A14-21 164.00 183.60 19.60 5.67 0.02 8 0.05 81 East
including 166.00 172.00 6.00 10.15 0.04 14 0.06 153
A14-23 49.00 49.50 0.50 18.30 0.39 34 0.02 NA West
and 270.00 278.00 8.00 2.95 0.24 16 0.03 40
and 288.00 308.00 20.00 3.61 0.02 3 0.02 34
DD52B 272.00 288.00 16.00 6.00 0.12 8 0.01 54 West. Includes 2m no recovery
A12-09 216.00 245.50 29.50 3.21 0.12 6 0.06 58 Central
A13-01 224.00 236.00 12.00 5.84 0.01 5 0.07 157 Central
A14-27 176.00 183.10 7.10 5.04 0.04 14 0.01 Central
including 179.00 179.50 0.50 31.62 0.05 27 0.05
and 338.50 348.00 9.50 4.14 0.12 6 0.06 38
A14-25 228.00 249.50 21.50 1.85 0.28 10 0.01 NA West. No recovery 249.5-251.3 m
and 306.00 320.00 14.00 1.33 0.27 8 0.01 NA
A13-03 165.30 174.00 8.70 4.31 0.57 11 0.07 10 Central
A13-07 75.80 76.90 1.10 30.00 0.06 54 0.10 187 West
A13-12A 250 268 18.00 3.84 0.03 5 0.05 56 Central
and 280.00 292.00 12.00 4.22 0.24 16 0.05 17
A13-15 329.20 344.00 14.80 4.80 0.01 5 0.09 0.12 101 Central
A13-16 370.00 394.00 24.00 2.80 0.01 2 0.01 110 East
A13-17 372.10 396.00 23.90 2.90 0.18 18 0.05 0.25 22 East
DD70 100.00 104.00 4.00 10.45 0.04 59 0.13 14 West
and 156.00 170.00 14.00 4.18 0.07 12 0.02 2
CDD46 274.00 282.90 8.90 1.56 0.25 9 0.01 17
A14-30 166.00 178.40 12.40 1.24 0.64 65 0.02 2 West
and 236.00 248.00 12.00 1.00 0.98 61 0.07
and 264.00 266.00 2.00 6.01 2.75 212 0.30

Additional Notes to Table 1:
Zn = zinc. Pb = lead. Ag = silver. Cu = copper. Sn = tin. In = indium.
NA = No Assays available
Down-hole intersections in Table 1 were calculated using a 1% zinc cut-off grade over 6 metre intervals.
The above zinc drill intercepts, including drill hole collar information, were released on February 10, 2015.
Zones of no recovery are due to highly broken or fault zones.


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