Important Gold Discoveries Proceed at Golden Gate – Drilling Hits 253.0m @ 1.5 g/t Au from Floor and Open in all Instructions Ending in Mineralisation

Decision Minerals Ltd (ASX: RML; OTCQB: RLMLF) (“Decision” or “Firm”) is happy to report that its maiden drill program at its 100% owned Horse Heaven Gold-Antimony-Tungsten- Silver Challenge (“Horse Heaven” or the “Challenge”), Idaho, USA (Determine 1) has delivered further broad intervals of near-surface gold mineralisation at Golden Gate Prospect.

Highlights

• Golden Gate now has reported outcomes for 3 diamond holes from floor, all ending in gold mineralisation, confirming a big, open intrusion-related gold system. The 2 most up-to-date holes embody:
  • HH-GG25-003C: Down gap interval of 253.0m @ 1.50 g/t gold from floor to 253.0m (open ended), together with:
    • 111.9m @ 2.31 g/t gold from 130.5m and 18.3m @ 3.98 g/t gold from 149.4m (with the very best assay results of 5.91 g/t gold over a down gap width of 1.5m)
  • HH-GG25-002C: Down gap interval of 265.2m @ 0.60 g/t gold from floor to 265.2m (open ended), together with 89.9m @ 1.15g/t gold from 121.9m.
• On 28 October 2025, the Firm reported a down gap interval of 189.2m @ 1.30 g/t Au from 34m, ending in mineralisation, in HH-GG25-001C, together with:
  • Down gap interval of 12.9m @ 2.32 g/t Au from 94.4m; and
  • Down gap interval of 70.8m @ 2.24 g/t Au from 128.8m.

These outcomes display the continual potential for a big intrusive-hosted gold system with geology, sulphides and alteration just like the Stibnite gold-antimony deposit, solely ~16km away.

• A number of near-term catalysts embody:
  • A Reverse Circulation drill rig is being mobilised to Golden Gate to right away follow-up on the outcomes of the primary three holes.
  • Assay batch outcomes from 7 further oriented Core holes of the Part-1 program (together with backside of HH-GG25-001C) to be launched progressively over the next months.
• RML’s Horse Heaven challenge is strategically situated in a district central to home crucial mineral provide chains (gold-antimony-tungsten-silver), all aligned with the U.S. authorities priorities.

RML’s CEO of US Operations, Craig Lindsay, commented on the invention:

“Following up our first gap with even stronger outcomes from holes 2 and three is an distinctive final result for the Golden Gate prospect.

These outcomes affirm that Golden Gate hosts a big, sturdy gold system with all holes returning broad gold mineralisation from floor and ending in mineralisation.

That degree of continuity and consistency is extraordinarily uncommon this early in a program and highlights the potential scale and our perception that Golden Gate has all of the hallmarks of a major intrusive- associated gold deposit, corresponding to the most important techniques seen elsewhere within the district, together with Perpetua’s Stibnite, which is barely 16km away.

With a number of targets nonetheless to check throughout the broader Horse Heaven Challenge, together with Antimony Ridge, our confidence continues to develop that we’re on the verge of uncovering a very district- scale gold system with complementary identified tungsten and antimony mineralisation.”