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·For Immediate Release

Exploration Permit Issued for Zymo Project

TSX.V: ETF·OTC: ETFLF·VANCOUVER, BC

Vancouver, B.C., December 11, 2024, Eastfield Resources Ltd.( TSX-V: ETF) (“Eastfield”) reports that, following an eight-month review, an exploration permit has been issued for its 100% owned Zymo copper-gold porphyry project located 45 km west of the community of Smithers, British Columbia.

The Zymo copper-gold porphyry project encompasses 18,184 hectares and includes a significant 8 km long by 2 km wide strongly induced polarization anomaly defining a copper-gold porphyry system containing several 1 km square (or more) targets with extensive areas having chargeability responses greater than 20 mv/V. To date, Eastfield and former partners have expended approximately $5 million exploring this project, including thirty-four drill holes (10,810 meters).

Mineralization occurs in porphyritic diorites and adjacent sediments in zones of strong potassic alteration. Two of the more notable zones discovered to date are named the Hobbes and FM Zones (five zones in total now discovered). Mineralization is surrounded by extensive areas of phyllic alteration which in turn is surrounded with a much larger area of chlorite and iron carbonate alteration suggesting unknown additional zones are probable, both latterly and at depth.

Results to date include drill holes

- ZY08-09 with 0.72% copper and 0.66 g/t gold over 72 meters, - ZY08-10 with 0.31% copper and 0.21 g/t Au over 159 meters, and - ZY11-20 with 0.28% copper and 0.34 g/t gold over 126 m.

Peripheral precious metal veins have returned up to 10.78 g/t gold with several percent lead and zinc.

Topography is generally flat to undulating covered with a variable depth of overburden (generally not deep). Logging roads and clear-cuts now extend to the northeast side of the property.

In 2024 the claim group was expanded by 5,455 hectares to cover additional airborne geophysical targets and an area underlain by the prospective Quock Group of the Hazelton Formation which is host to the world class Eskay Creek high- grade gold-silver mine. Initial fieldwork to evaluate targets on the new claims was initiated in September 2024. The permit, which is valid until March 30, 2030, authorizes 50 drill sites and 50 km of geophysical surveying.

This news release has been reviewed and approved by Glen Garratt, P. Geo., who is the Qualified Person within the context of NI 43-101 and takes responsibility for it.

Glen Garratt, P. Geo.

Vice-President, Director

Contact:

Phone: (604) 681-7913, Toll Free: 888-656-6611

Website: http://www.eastfieldresources.com

Email: info@eastfieldgroup.com

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

About Eastfield Resources Ltd.

Eastfield Resources Ltd. (TSX.V: ETF | OTC: ETFLF) is a Vancouver-based mineral exploration company focused on British Columbia. The Company employs a project-generator business model, acquiring prospective exploration properties and advancing them through initial exploration before securing partners to fund drilling. Eastfield's portfolio of BC exploration properties targets copper, gold, silver, and platinum group metals. On June 30, 2026, Eastfield announced a definitive agreement to sell its Zymo and Indata properties to Star Copper Corp., subject to shareholder approval and TSX Venture Exchange acceptance.

Forward-Looking Statements: Certain statements in this news release constitute "forward-looking statements" or "forward-looking information" under applicable Canadian securities legislation. Such statements involve known and unknown risks and uncertainties that may cause actual results to differ materially from those expressed or implied. Readers are cautioned not to place undue reliance on forward-looking statements. Eastfield Resources does not undertake any obligation to update forward-looking statements, except as required by law.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

For further information:

J.W. (Bill) Morton, P.Geo.

President and Chief Executive Officer

Eastfield Resources Ltd.

info@eastfieldgroup.com

This release is also available onSEDAR+

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Email · info@eastfieldgroup.comPhone · 604-681-7913Toll-free · 1-888-656-6611

Qualified Persons (NI 43-101): Quantitative scientific and technical information presented on Eastfield’s current project pages has been reviewed and approved for website disclosure by William (Bill) Morton, P.Geo., President and Chief Executive Officer, and Glen Garratt, P.Geo., Vice President, Exploration, each a Qualified Person as defined by National Instrument 43-101 — Standards of Disclosure for Mineral Projects. Historical and third-party information should be read with the cited source, date and applicable qualifications. Eastfield’s continuous-disclosure filings on SEDAR+ remain the authoritative record.

Forward-Looking Statements: Certain information on this website constitutes "forward-looking statements" under applicable Canadian securities legislation. Such statements involve known and unknown risks and uncertainties that may cause actual results to differ materially. Eastfield does not undertake to update forward-looking statements, except as required by law.
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