Tinka Resources Limited ('Tinka' or the 'Company') (TSXV:TK) (BVL:TK) (OTCQB: TKRFF) is pleased to announce results for the final three drill holes of the 11,000-metre 2022-2023 drill program at South Ayawilca and to provide an update on the Company's ongoing exploration activities.

The recent drill campaign at Ayawilca was completed at the end of May 2023. The Company is now focused on completing a Mineral Resource update for the Ayawilca deposit and revising future mining scenarios via a desktop trade-off study. Exploration is also continuing at the Company's nearby Silvia copper-gold project.

Drill results from the 'Silver Zone' at South Ayawilca were highly encouraging with a high-grade silver intercept in a 150-metre step-out in hole A22-195. The other two new holes reported here, A23-221 and A23-223, intersected high-grade 'Zinc Zone' mineralization in resource confirmation holes. All drill hole results have now been incorporated into a revised geological model for the Ayawilca deposit, and an independent consultant is currently updating the Mineral Resource estimation for the Zinc and Tin Zones.

Key Highlights: Zinc Zone

Hole A23-223: 21.6 metres at 6.6% zinc and 18 g/t silver from 254.0 metres depth, including 7.6 metres at 10.7% zinc and 18 g/t silver from 268.0 metres depth.

Hole A23-221: 13.8 metres at 6.8% zinc from 290.2 metres depth.

Silver Zone

Hole A22-195: 3.4 metres at 465 g/t silver from 209.7 metres in a 150-metre step-out hole.

The Silver Zone is interpreted as a subvertical, northeast-trending structure with high-grade silver over a strike length of at least 500 metres on the northern edge of the zinc-rich massive sulphide bodies at South Ayawilca.

Previous downhole intercepts of the Silver Zone include 7.1 metres at 604 g/t silver and 11.5 metres at 781 g/t silver.

The Silver Zone mineralization remains open in all directions including up- and down-plunge.

True thicknesses of the above drill intercepts are estimated to be approximately 70% of the downhole thicknesses.

Dr. Graham Carman, Tinka's President and CEO, stated: 'We are pleased to report results from the final holes of the 11,000-metre drill program at Ayawilca. These latest drill holes targeted both Zinc Zone massive sulphide mineralization and extensions of the structurally controlled epithermal Silver Zone mineralization on the edge of the massive zinc sulphides at South Ayawilca. All drill intersections have now been incorporated into a new geological model which will form the basis of an updated Mineral Resource estimation which we expect to be released in September 2023.'

'Exploration is continuing at the Silvia NW copper-gold target 30 km from Ayawilca. A 121 line-kilometre drone magnetic survey has just been completed, covering outcrops of Cu-Au skarn mineralization which are exposed in several locations over a 3km strike length. Sampling by Tinka has identified high-grade copper-gold skarn in trench samples grading up to 2.7% copper and 22 g/t gold over 2 metres with the best continuous sample being 46 metres at 0.8% copper and 1.9 g/t gold - See previous news release. Processing and interpretation of the data are underway. An environmental permit has been filed with the Peruvian authorities which will allow future drilling once granted.'

Zinc Zone Drill Results 2022-23

The Company completed 33 diamond drill holes for 11,115 metres in the 2022-23 drill campaign. These were both infill and step-out holes and were focused at West and South Ayawilca which are known areas of high-grade zinc mineralization. Some of the best Zinc Zone intersections ever made at Ayawilca were reported during this campaign, including:

South Ayawilca: Hole A22-202: 38.9 metres at 20.0% Zn, 0.1% Pb and 31 g/t Ag from 170.5 metres - news release Jan 9 '23.

Hole A22-199: 42.4 metres at 9.4% Zn, 0.1% Pb and 19 g/t Ag from 246.5 metres - news release Jan 9 '23.

Hole A22-212: 145.2 metres at 10.9% Zn, 0.2% Pb and 31 g/t Ag from 158.2 metres - news release Mar 6 '23.

Hole A22-208: 71.2 metres at 8.8% Zn, 0.5% Pb and 33 g/t Ag from 168.8 metres - news release Mar 6 '23.

Hole A22-206: 37.8 metres at 10.5% Zn, 0.1% Pb and 17 g/t Ag from 153.6 metres - news release Mar 6 '23.

West Ayawilca: Hole A22-200: 44.9 metres at 12.0% Zn, 0.1% Pb and 16 g/t Ag from 283.6 metres - news release Nov 21 '22.

Hole A22-207: 132.5 metres at 6.8% Zn, 0.3% Pb and 21 g/t Ag from 193.9 metres - news release Jan 24 '23.

Hole A22-205: 134.0 metres at 4.8% Zn, 0.1% Pb and 10 g/t Ag from 180.0 metres - news release Jan 24 '23.

Hole A22-203: 49.8 metres at 8.3% Zn, 0.1% Pb and 16 g/t Ag from 186.88 metres - news release Jan 24 '23.

Hole A23-216: 97.9 metres at 8.8% Zn, 0.1% Pb and 16 g/t Ag from 197.9 metres - news release June 8 '23.

The full suite of drill results from the 2022-23 program have now been incorporated into an updated 3D geological model and a Mineral Resource update is in progress. The updated Mineral Resource estimation is expected to be available in September 2023.

Significant improvements to the geological interpretation based on the 2022-23 drill program include the following: Zinc Zone mineralization at West Ayawilca is more vertically controlled than was previously interpreted - two zinc sulphide 'pipes' each with diameters of between 100 and 150 metres extend through entire limestone sequence (up to 200 metres vertically).

High-grade, continuous massive zinc sulphide mineralization at South Ayawilca is concentrated within a tightly folded anticline 'hinge' - this very high-grade zone has the potential to be a 'starter mine' to provide quick payback of initial capital.

An initial hydrological study has also been conducted to better understand the underground water conditions at Ayawilca. Hydrological information has been obtained from 11 down-hole piezometers which were installed on a wide drill spacing to get adequate coverage across the project. The hydrological study, which is close to final completion, will be important for mine plan studies in the future.

Silver Zone Drill Results

The Silver Zone is hosted by a steep-dipping structure ('060 Fault') located on the northern edge of the Zinc Zone massive sulphides at South Ayawilca. Previously, the Silver Zone had been identified along a 250 metres strike length. However, resampling of an earlier hole in the drill campaign, A22-195, has led to an updated interpretation that the Silver Zone extends for at least 500 metres along the northeast-trending structure and remains open.

Hole A23-223, a follow-up to the high-grade silver mineralization in A17-072, intersected low-grade silver mineralization only and is interpreted to have intersected the Silver Zone structure at a depth which is too deep to be well mineralized. The hole did, however, intersect strong Zinc Zone mineralization higher up in the hole.

To date, eight drill holes have intersected the Silver Zone structure across a strike length of 500 metres. The mineralization is interpreted to plunge at a shallow angle to the southwest. Highlights of the Silver Zone downhole intersections include: Hole A23-220: 29.5 m at 182 g/t Ag from 289.7 m including 7.1 m at 604 g/t Ag - news release May 2 '23.

Hole A17-095: 8.7 m at 135 g/t Ag from 307.3 m - news release May 2 '23.

Hole 17-072: 11.5 m at 781 g/t Ag from 294.5 m including 2.0 m at 3167 g/t Ag - news release July 17 '17.

Hole A19-167: 29.6 m at 152 g/t Ag from 412.7 m including 7.3 m at 366 g/t Ag - news release Oct 8, '19.

Hole A22-195: 3.4 m at 465 g/t silver from 209.7 m (this release).

Silvia Project Exploration

At the Silvia NW target, high-grade copper-gold mineralization occurs in outcrops of 'green garnet skarn' associated with chalcopyrite, secondary copper minerals (with very low arsenic) and microscopic native gold, adjacent to altered felsic intrusions. 'Area A' sampled up to 2.7% copper and 22 g/t gold over 2 metres in trench samples, with the best trench sample being 46 metres at 0.8% copper and 1.9 g/t gold - news release Nov 10 '21. The Silvia NW target has not been drilled in the past. Tinka has filed for an environmental drilling permit ('DIA') to the Peruvian authorities and is awaiting approval.

Readers are encouraged to read the NI 43-101 Technical Report entitled 'Ayawilca Polymetallic Project, Central Peru, NI 43-101 Technical Report on Updated Preliminary Economic Assessment' available for download on Tinka's website at www.tinkaresources.com. The Technical Report was prepared by Mining Plus Peru S.A.C. ('Mining Plus') as principal consultant, Transmin Metallurgical Consultants ('Transmin'), Envis E.I.R.L ('Envis'), and SLR Consulting (Canada) Ltd ('SLR').

Contact:

Tel: 1.604.685.9316

Email: info@tinkaresources.com

Tinka is an exploration and development company with its flagship property being the 100%-owned Ayawilca zinc-silver-tin project in central Peru. The Zinc Zone deposit has an estimated Indicated Mineral Resource of 19.0 Mt @ 7.15% Zn, 16.8 g/t Ag & 0.2% Pb and Inferred Mineral Resource of 47.9 Mt @ 5.4% Zn, 20.0 g/t Ag & 0.4% Pb (dated August 30, 2021). The Ayawilca Tin Zone has an estimated Inferred Mineral Resource of 8.4 Mt grading 1.0% Sn. Tinka recently completed an 11,000-metre resource definition drill program at West Ayawilca and South Ayawilca, and a Mineral Resource update is pending.

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: timing of planned work programs and results varying from expectations; delay in obtaining results; 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 and operating performance; environmental and safety risks; the Company's expectations regarding the Ayawilca Project PEA; the political environment in which the Company operates continuing to support the development and operation of mining projects; risks related to negative publicity with respect to the Company or the mining industry in general; the threat associated with outbreaks of viruses and infectious diseases, including the novel COVID-19 virus; delays in obtaining or failure to obtain necessary permits and approvals from local authorities; community agreements and 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.

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