Eastfield Commences 2025 Field Program at Indata Property

(TheNewswire)

Vancouver, BC – TheNewswire - July 10,2025 – Eastfield Resources Ltd. (TSX-V: ETF) ispleased to announce that the 2025 exploration program has commenced atthe IndataProperty , located in central British Columbia.Eastfield holds a 100% interest in Indata, with a 60% interestcurrently optioned to StarCopper Corp. (TSX-V: STCU). The property isprimarily prospective for copper, gold, and molybdenum, withsignificant occurrences of antimony also documented.

Notable Historical Drill ResultsInclude:

• Copper : HoleIN22-82 intersected 174.0 metres grading 0.23% Cu , including ahigher-grade interval of 29.0 metres grading 0.47% Cu
  Step-out drilling from thishole is planned for 2025.

• Gold :Historical hole DDH88-11 intersected 4.0 metres grading 47.26 g/t Au

• Molybdenum :Hole IN22-74 returned 31.0 metres at the bottom of the hole grading 0.102% Mo , including 7.5 metres grading 0.320% Mo
  Step-out drilling is alsoplanned for this area in 2025.

In the early stages of exploration at Indata, theprimary focus was lode gold, with Placer Dome Inc. funding much of the work through private placements in Eastfield. Goldmineralization was commonly associated with stibnite, with antimonyassays often exceeding 0.5% , and in some cases reaching 3.8% Sb . Mechanicaltrenching and drilling revealed numerous gold-bearing veins andsilicified zones across the property.

Soil sampling programs conducted over the years haveevolved from targeting gold to copper, with robust copper values andwidespread anomalous antimony readings (commonly over 100 ppm ) observedover a north-south width exceeding five kilometers.

In 2022, exploration in the northwest sector of theproperty targeting potential Carbonate-Hosted Gold or Carbonate Replacement Deposit(CRD) mineralization resulted in the discoveryof hole IN22-84. This hole intersected 81.0 metres of limestonebreccia mineralized with silica, arsenic, and antimony , sitting above aquartz monzonite intrusive sporadically mineralized with molybdenite.Follow-up geochemical analysis revealed extensive anomalous antimonyin soils surrounding this zone, reinforcing the area ’ s exploration potential.

The Indata Property is located near the Pinchi Fault Zone ,approximately 120 km northwest of Fort St. James, BC. The historic Snowbird Mine , situated 12 km west of Fort St. James along the same faultzone, produced a small tonnage of high-grade ore during World War II,reported to average 9%antimony and 0.25 oz/ton gold (approx. 8.6 g/t Au). The geological similarities between Indata andSnowbird support continued exploration for antimony-goldmineralization across Indata ’ s 14-kilometre strike length.

This news release has been reviewed and approved byBill Morton, P. Geo . , CEO of Eastfield Resources and a QualifiedPerson as defined by National Instrument 43-101

Bill Morton, P. Geo.

CEO

Neither the TSX Venture Exchange norits Regulation Services Provider (as that term is defined in thepolicies of the TSX Venture Exchange) accepts responsibility for theadequacy or accuracy of this news release.

For further information, pleasevisit: www.eastfieldresources.com

Copyright (c) 2025 TheNewswire - All rights reserved.