What are the key assay results from the latest drilling at Touro?

The standout intercept from the Phase 1 program is in hole PDT-124, which returned 2.3 metres at 1.9 per cent copper equivalent, including a higher‑grade interval of 0.5 metres at 3.9 per cent copper equivalent. These results are supported by other Cu‑Zn‑Au‑Ag‑Pb intercepts that confirm the presence of a robust mineralised system.

Why are the gold and silver grades at Touro important?

Touro is delivering some of the highest precious‑metal grades seen so far at the Palma project, with silver up to 111 grams per tonne and gold up to 2.66 grams per tonne. These elevated gold and silver values can materially improve potential project economics in a future development scenario, compared with copper‑zinc‑only mineralisation.

What does the 674 siemens DHEM conductor at PDT-132 suggest?

The 10‑metre zone of visual semi‑massive and disseminated sulphides in hole PDT‑132, followed by a downhole EM response of about 674 siemens, points to a strong and possibly more extensive sulphide body at depth. It represents the strongest conductor identified at Touro to date, making it a high‑priority target for follow‑up drilling once assays are received.

Alvo hits best precious-metal grades yet at Palma’s Touro prospect

Written by Mahathir BayenaPublished May. 1 2026Last Updated May. 1 2026

Alvo Minerals Limited (ASX: ALV) has reported significant assay results from its Phase 1 drilling program at the Touro prospect within the Palma Copper-Zinc Project in Central Brazil.

The latest results confirm the presence of high-grade precious metals, with hole PDT-124 returning 2.3m @ 1.9% CuEq (0.77% Cu, 57g/t Ag, and 0.43g/t Au), including a higher-grade zone of 0.5m @ 3.9% CuEq.

Notably, the Touro prospect continues to yield silver and gold grades reaching up to 111g/t and 2.66g/t, respectively - the highest levels recorded across the Palma project to date.

Exploration has extended shallow mineralisation at Touro over a strike length of approximately 1km, with mineralised zones remaining open both along strike and at depth.

Further depth potential was highlighted by hole PDT-132, which intercepted 10m of visual semi-massive and disseminated sulphides targeting a northern conductor.

Subsequent downhole electromagnetic (DHEM) surveys recorded a strong 674 siemens conductor, the highest value ever seen at the prospect.

Frequently asked questions

What are the key assay results from the latest drilling at Touro?

Why are the gold and silver grades at Touro important?

What does the 674 siemens DHEM conductor at PDT-132 suggest?