What are the key technical findings from the latest Nanadie drill hole?

The follow-up diamond hole at Nanadie successfully targeted a zone 60 metres west of the initial discovery, encountering extensive sulphide concentrations. Most importantly, the results indicate that the mineralised system remains "open" and robust at depths reaching 500 metres below the current Mineral Resource Estimate.

How does this news change the investment thesis for Solstice Minerals (ASX:SLS)?

This update shifts the narrative from "resource definition" to "significant growth potential." By proving the system extends 500 metres below the existing resource boundary, Solstice has demonstrated that Nanadie could eventually host a much larger deposit than the current 40.4 million tonne Inferred MRE.

What is the current scale of the Nanadie Copper-Gold Project?

The Nanadie Project currently hosts an Inferred Mineral Resource Estimate (MRE) of 40.4 million tonnes. The mineralised footprint spans approximately 1 kilometre in length. The latest drilling success reinforces the "vertical and lateral scale" of the system, meaning the company is finding mineralisation both deeper underground and further out to the sides than previously mapped.

What are the main "bull case" points for Solstice Minerals (ASX:SLS) right now?

The primary bull case is the "dual-track" exploration strategy, combining deep diamond drilling with a massive 10,000-metre Phase 2 reverse circulation (RC) campaign. If these programs successfully delineate higher-grade copper-gold zones, the project could become a high-value target for larger mining companies.

Solstice Minerals shares surge on Nanadie Project extension

Q: Why did Solstice Minerals (ASX:SLS) shares jump 10% on May 11?

Shares in Solstice Minerals (ASX:SLS) rose after the company confirmed a significant extension of the mineralised system at its Nanadie Copper-Gold Project in Western Australia. A new diamond drill hole revealed visible copper sulphides (chalcopyrite) approximately 180 metres below previous intercepts.

Written by Liezl GambePublished May. 11 2026Last Updated May. 11 2026

Shares in Solstice Minerals (ASX:SLS) rose by more than 10% on May 11 following news that the explorer has broadened the footprint of its Nanadie Copper-Gold Project in Western Australia.

The company confirmed the extension of the mineralised system after completing a diamond drill hole, which revealed extensive visible chalcopyrite approximately 180m below previous intercepts.

The latest development suggests the system remains open and robust at depths of up to 500m below the current mineral resource estimate.

The exploration team successfully targeted a zone 60 metres west of the initial discovery hole, encountering sulphide concentrations that Managing Director Nick Castleden described as a reinforcement of the project’s "meaningful vertical and lateral scale".

While geological logging and core processing remain underway, the visual data has prompted optimism regarding the continuity of the 1 kilometre-long mineralised footprint.

Parallel to the diamond drilling, Solstice is aggressively pursuing a 10,000-metre Phase 2 reverse circulation campaign.

The dual-track approach aims to delineate higher-grade material while testing the operational limits of previous exploration.

Situated near Sandstone, the Nanadie Project already hosts an inferred MRE of 40.4 million tonnes.