Hole A19-165 intercepted four separate mineralised zones with downhole thicknesses of between 9m and 29m and grading between 11.8% and 14.0% zinc. Hole A19-167 intersected very high-grade silver mineralisation (more than 1,000 grams per tonne) and base metals about 100m beneath the existing zinc zone resource.

Highlights from recent drill holes at South Ayawilca include 28.7m grading 14% zinc, 14g/t silver, 0.1% lead and 101g/t indium and 7.3m grading 4.9% zinc, 366g/t silver and 0.5% lead.

"Hole A19-165 is an exceptional drill hole with four separate mineralised intervals with outstanding zinc grades over significant thicknesses, confirming continuity of the mineralisation and increasing confidence in our geological model," president and CEO Dr Graham Carman said.

"The success of A19-167 proves that Ayawilca has very high-grade silver mineralisation which is believed to have developed around the edge of the Ayawilca zinc zone. This recent discovery offers a new exploration target and potentially significant precious metal upside to supplement the very large zinc resource."

Shares in Tinka Resources are trading at C16c, valuing the company at $41 million.