Drilling confirms discovery status at Horse Heaven’s Golden Gate target with three consecutive holes ending in Mineralisation, identifying the large intrusion-related gold system only 16km from the Stibnite Gold Project (PPTA.NAS)
HIGHLIGHTS
- Golden Gate now has reported results for three diamond holes from surface, all ending in gold
mineralisation, confirming a large, open intrusion-related gold system. - The two most recent holes include:
- HH-GG25-003C: Down hole interval of 253.0m @ 1.50 g/t gold from surface to 253.0m
(open ended) - HH-GG25-002C: Down hole interval of 265.2m @ 0.60 g/t gold from surface to 265.2m
(open ended)
- HH-GG25-003C: Down hole interval of 253.0m @ 1.50 g/t gold from surface to 253.0m
- On 28 October 2025, the Company reported a down hole interval of 189.2m @ 1.30 g/t Au
from 34m, ending in mineralisation, in HH-GG25-001C - These results demonstrate the continuous potential for a large intrusive-hosted gold system
with geology, sulphides and alteration similar to the Stibnite gold-antimony deposit, only
~16km away. - Multiple near-term catalysts include:
- A Reverse Circulation drill rig is being mobilised to Golden Gate to immediately follow-up on the results of the first three holes.
- Assay batch results from 7 additional oriented Core holes of the Phase-1 program
(including bottom of HH-GG25-001C) to be released progressively over the following
months.
- RML’s Horse Heaven project is strategically located in a district central to domestic critical mineral supply chains (gold-antimony-tungsten-silver), all aligned with the U.S. government priorities.
Following up our first hole with even stronger results from holes 2 and 3 is an exceptional outcome for the Golden Gate prospect. These results confirm that Golden Gate hosts a large, robust gold system with all holes returning broad gold mineralisation from surface and finishing in mineralisation. That level of continuity and consistency is extremely rare this early in a program and highlights the potential scale and our belief that Golden Gate has all the hallmarks of a significant intrusive-related gold deposit, comparable to the major systems seen elsewhere in the district, including Perpetua’s Stibnite, which is only 16km away. With multiple targets still to test across the broader Horse Heaven Project, including Antimony Ridge, our confidence continues to grow that we’re on the verge of uncovering a truly district-scale gold system with complementary known tungsten and antimony mineralisation.
Schematic cross section of HH-GG25-003C showing the local geology, highlighting the significant gold intersections, and pre-RML RC drill holes intersections draw into the plane of the cross section. Strong pervasive gold mineralisation is hosted in both the monzonite (including 1.88g/t gold over 45.72m) and granodiorite (including 2.31g/t gold over 111.86m), lower-grade, but still significant god mineralisation is hosted in fault breccias. The cross section shows how the pervasive gold mineralisation of HH-GG25-003C traverses a repeating sequence of fault breccias, structurally-bound monzonites and granodiorites. Together with the open nature of the mineralisation, this is highly encouraging (purple arrows).
