Delta Drills 4.18 g/t Au over 17.7 Metres at Eureka and Initiates First Phase of Comprehensive Metallurgical Test Work Program at The Delta-1 Gold Project, Thunder Bay, Ontario

Delta Resources Limited has announced encouraging assay results from the final two holes of its Fall 2025 drilling program at the Delta-1 Project in Thunder Bay, Ontario, while simultaneously launching a comprehensive metallurgical test work program to advance the Eureka Gold Deposit beyond the exploration phase. The drilling program delivered notable intercepts including 4.18 g/t Au over 17.7 metres and additional intervals of 0.74 g/t Au over 11.7 metres and 0.89 g/t Au over 13 metres in hole D1-25-145, along with 0.91 g/t Au over 16.1 metres and 1.14 g/t Au over 7.3 metres in hole D1-25-146.

The strategic positioning of these drill holes within the core of the Eureka Gold Deposit served the dual purpose of providing infill drilling data and generating fresh material for metallurgical testing. The results successfully confirmed lateral continuity of mineralization between previous drill holes, positioned approximately 40 metres from the nearest previously completed holes. This infill drilling approach represents a methodical de-risking strategy for the deposit, with nearby historical intercepts including impressive results such as 5.92 g/t Au over 31 metres and 1.79 g/t Au over 128.5 metres from prior drilling campaigns.

The initiation of the metallurgical test work program marks a significant milestone in the project's development trajectory, with Delta retaining Joe Milbourne, a metallurgical expert with over 50 years of experience, to provide technical oversight. Base Metallurgical Laboratories has been selected to conduct an extensive testing regime that includes Bond work indices, QEMSCAN particle mineral analysis, flotation testing, leach testing, and gravity recoverable gold testing. Approximately 400 kg of material was collected from the three principal gold-bearing lithologies to produce representative composite samples for this comprehensive evaluation.

This development represents a strategic evolution for Delta Resources as it transitions the Eureka Gold Deposit from pure exploration toward preliminary technical evaluation. The metallurgical program will provide critical insights into physical properties, recovery characteristics, and processing options that will inform future technical and economic studies. The Eureka Gold Deposit's attributes—including its 2.5 km strike length, near-surface location adjacent to the Trans-Canada Highway, and mineralization extending from surface to over 300 metres depth—position it as a potentially significant gold asset in northwestern Ontario's established mining district.