Diamond Drilling Discovers Considerably Deeper and Extra Intensive Copper Mineralisation at Tollu Deposit, WA

Redstone Assets Restricted (ASX Code: RDS) (‘Redstone’ or the ‘Firm’) is happy to report outcomes of the remaining geochemistry from the 1,195.5m diamond drill gap TLD005, drilled beneath the Tollu Cu Deposit on the Firm’s 100% owned West Musgrave Mission (the Mission) in Western Australia (Confer with Determine 1).

Pleasingly, the newest outcomes affirm that drill gap TLD005 has found a number of lenses of Cu mineralisation – together with two additional vital high-grade intersections – at a lot larger depth (over 400m deeper vertically than earlier) and extra in depth being ~130m additional to the south, in isolation to any Cu mineralisation at Tollu ever reported by Redstone (seek advice from Figures 2 and three).

HIGHLIGHTS

• Assays affirm that diamond gap TLD005 has intersected further high-grade copper (Cu) mineralisation, some 400m deeper and considerably additional to the south (130m) of the Chatsworth mineralisation; in isolation to any earlier Cu intersects at Tollu
• Along with beforehand reported ends in September 2025, additional evaluation exhibits that drill gap TLD005 additionally intersected vital high-grade Cu at two different places a lot deeper downhole (see Determine 2), together with:
  • 1.8m at 2.5% Cu from 912.4m downhole; and
  • 4m at 1.3% Cu from 1,048m downhole, inclusive of
    • 1.6m at 2.7% Cu from 1,048.4m
• Extra a number of decrease grade Cu intersections had been noticed all through TLD005, highlighting the potential extent and upside of the Cu system at Tollu (see under and Appendix 2 for additional info)
• Considerably, even at decrease grades, geochemistry in TLD005 signifies that cobalt (Co) might be in sulphide kind, not all the time related to Cu mineralisation, and bias in the direction of an underlying gabbro
• Potential affiliation of Co sulphide mineralisation within the gabbro that underlies the Tollu Cu deposit is essential for Redstone’s exploration technique as a result of it’s potential proof for a magmatic sulphide supply of the Tollu Cu deposit and therefore elevates the prospectivity of your complete Mission for Voisey’s Bay type magmatic Cu-Ni-Co-PGE mineral deposits, equivalent to that of the world-class Nebo- Babel deposit positioned 60km to the west of Tollu
• These outcomes affirm the robust success of deep diamond gap TLD005 that are along with the beforehand introduced (17 September 2025) intersection of:
  • 10m at 1.37% Cu from 193m downhole, inclusive of
    • 4m at 2.37% Cu from 195m downhole

Commenting on the newest thrilling outcomes from TLD005, Chairman Richard Homsany stated:

“We’re delighted and really inspired by the newest outcomes from diamond gap TLD005, which spotlight among the most vital exploration progress made at Redstone’s West Musgrave copper mission in a while.

TLD005 has dramatically expanded the recognized limits of the Tollu Cu mineralisation, having intersected high-grade Cu mineralisation, some 400m deeper (vertically) and 130m south, in isolation of all recognized Cu mineralisation within the space of the Tollu Cu deposit.

These intersections counsel that the Tollu Cu mineralising system is doubtlessly extra in depth and much deeper than beforehand thought-about; and evaluation of Co geochemistry suggests a possible magmatic supply for the Co which additionally provides credence for the same supply for the Tollu Cu mineralisation.

Importantly, there are not any indications of this new zone of deep and remoted Cu mineralisation instantly above it on the floor, in contrast to on the Tollu Cu deposit, the place all historic drilling has focused Cu veins that always outcrop on the floor.

This means there may be much more Cu mineralisation to be found at Tollu.

We at the moment are working in the direction of finalising follow-up drilling plans for early 2026 and can report on additional progress within the near-term.”