Drilling at South Ayawilca intersected high-grade zinc-silver mineralisation associated with massive sulphide mineralisation over substantial widths and is expected to increase indicated mineral resources at the project. Highlights included 40m grading 8.8% zinc and 12 grams per tonne silver, including 9.1m grading 20.1% zinc and 23g/t silver.

"The results from the two South Ayawilca holes confirm that high-grade mineralisation within the current indicated mineral resource boundary extends at least a further 80m to the northeast," said Tinka president and CEO Dr Graham Carman.

"These holes improve the confidence of our resource base."

Tinka has drilled about 7,600m in 21 holes as part of the 2020-2021 programme as it prepares for an updated mineral resource and preliminary economic assessment scheduled for mid-2021. The drilling programme aims to extend the indicated mineral resources at West Ayawilca southwards into the Camp area, and South Ayawilca further to the east.

Shares in Tinka Resources are trading at C23c, valuing the company at $78 million.