Dr. Graham Carman reports

TINKA ANNOUNCES RESIGNATION OF DIRECTOR

Tinka Resources Ltd.'s Pieter Britz has resigned from the board of directors of the company with immediate effect. Mr. Britz has withdrawn his name from the slate of nominees for election to the board at the annual general and special meeting of shareholders to be held on March 26, 2025. Mr. Britz is stepping back as a director of Tinka to focus on continuing work commitments with regard to the management of the Sentient Resources funds and associated investments.

Mr. Britz joined the company in January, 2018, as a director nominated by Sentient, and has been a valuable member of the board. The board and management are grateful to Mr. Britz for his many contributions during his board tenure and wish him well in his future endeavours.

About Tinka Resources Ltd.

Tinka is an exploration and development company with its flagship property being the 100-per-cent-owned Ayawilca zinc-silver-tin project in central Peru. The Zinc zone at Ayawilca has an estimated indicated mineral resource of 28.3 million tonnes grading 5.82 per cent zinc, 16.4 grams per tonne silver, 0.2 per cent lead and 91 g/t indium, and an inferred mineral resource of 31.2 million tonnes grading 4.21 per cent zinc, 14.5 g/t silver, 0.2 per cent lead and 45 g/t indium. The Silver zone has an estimated inferred mineral resource of 1.0 Mt grading 111.4 g/t silver, 1.54 per cent zinc and 0.5 per cent lead. The Tin zone has an estimated indicated mineral resource of 1.4 million tonnes grading 0.72 per cent tin and an inferred mineral resource of 12.7 Mt grading 0.76 per cent tin. The company filed a National Instrument 43-101 technical report on an updated PEA for the Ayawilca project on April 15, 2024.

Dr. Graham Carman, Tinka's president and chief executive officer, has reviewed, verified and approved the technical contents of this release. Dr. Carman is a fellow of the Australasian Institute of Mining and Metallurgy, and is a qualified person as defined by National Instrument 43-101.

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