Boise, Idaho – November 04, 2026 -- Perpetua Resources' first drill hole at the Fiddle prospect returned 109.7 meters grading 3.2 g/t gold and 1.1% antimony, a result the company says is among the broadest continuous intervals at its Stibnite Gold Project in central Idaho. The grades are more than double the project's life-of-mine average, according to the company. Perpetua (Nasdaq/TSX: PPTA) has now completed its 2026 exploration program, with over 16,000 meters of core drilled.
Fiddle discovery hole SB633 cuts 109.7 meters of gold-antimony mineralization south of the Yellow Pine pit
Hole SB633 intersected the interval from 189 meters downhole. Fiddle lies about 750 meters south of the permitted Yellow Pine open pit along the Meadow Creek Fault Zone (MCFZ). The MCFZ is the district's main ore-controlling structure and runs through both the Yellow Pine and Hangar Flats deposits.
Step-out holes returned lower but consistent grades. SB637 extended mineralization 110 meters north, returning 37.4 meters of 0.7 g/t gold and 0.1% antimony from 93.8 meters. SB643, drilled from a pad about 200 meters north of SB633, returned 7.2 meters of 1.7 g/t gold and 0.5% antimony from 96.7 meters.
Drilling has traced the structure over roughly 600 meters of strike and more than 300 meters of vertical extent. A further 21 holes totaling 6,188 meters were drilled along strike north and south of SB633. Their assays are pending, as are those for SB665 and SB671, which were drilled south of the discovery hole. Core logging showed abundant stibnite and sulfides in both holes. Perpetua cautioned that logging is no substitute for assays and that later holes may not match SB633. It expects a significant volume of new results over the coming months.
Perpetua said the corridor could host stacked mineralized lenses like those at Hangar Flats, which lies on trend to the south.
Clark Tunnel Fault Zone drilling returns 25.4 meters of 4.5 g/t gold near surface
At the Clark Tunnel Fault Zone (CTFZ), on the eastern end of the permitted Yellow Pine pit, SB606 returned 25.4 meters of 4.5 g/t gold from 13 meters downhole. SB605 returned 25.0 meters of 2.3 g/t gold from 18 meters. Antimony and tungsten assays for both holes are pending. Core logging also showed stibnite and scheelite, a tungsten-bearing mineral.
Perpetua said the CTFZ is partly inside the permitted pit and could supplement the Yellow Pine production profile in the first years of production. The company describes Yellow Pine as the highest-grade gold and antimony pit at Stibnite.
The results follow August 2026 holes, including SB580 with 6.4 meters of 16.2 g/t gold and 1.7% antimony from surface. SB597 defined a new gold-tungsten zone, returning 21.3 meters of 3.2 g/t gold and 0.9% tungsten from 24 meters. The CTFZ is now defined over a 200-meter strike length and to 50 meters depth, with four more holes awaiting assay.
CEO Jon Cherry called Fiddle "an important new discovery." He said the results align with the goal of expanding the defined resource base and extending the production profile.
Any additional resources or reserves would be subject to NEPA and permitting requirements, the company said.