Mr. Scott Lendrum reports

GIGA METALS ANNOUNCES PLANS FOR SPRING GEOPHYSICAL PROGRAM IN THE ATTIC ZONE

Giga Metals Corp. has made plans for a fully financed spring field program designed to expand on 2025 work and systematically advance Attic zone exploration at the Turnagain project. The Attic zone is prospective for copper, platinum and palladium mineralization.

The program will build on the successful results from last year's magnetotelluric survey, which effectively mapped two cross-sections of the ultramafic intrusion. MT proved an excellent tool for delineating the intrusion by exploiting the contrast between the relatively resistive ultramafic body and the graphitic and highly conductive country rocks.

2026 spring program highlights:

• Expanded MT coverage: Three additional MT lines across the Attic zone will bring the coverage to five lines. This expanded survey will help define the search volume for conductors within the ultramafic intrusion, providing critical vectoring information for further work.
• Ground electromagnetic survey: Giga will also conduct a ground electromagnetic survey to detect conductive bodies within, or at the margins of, the intrusion. Technical assumptions are being finalized, with the goal of completing the EM survey concurrent with, or immediately following, the MT program.

The integrated MT-EM approach represents a systematic, cost-effective strategy to test previously underexplored but prospective areas within the Attic zone to substantial depths.

"This spring's program is building on last fall's successful work at the Attic zone and represents the next step in our exploration of this highly prospective area," said chief executive officer Scott Lendrum. "Given the scale of the target area, we are adopting a deliberate and methodical approach, with the goal of defining drill-ready targets later in the season. The Attic zone remains significantly underexplored despite years of historical work at Turnagain and offers us an opportunity to redefine the project's potential entirely."

Fieldwork is expected to commence in June with results anticipated later in the summer.

About Giga Metals Corp.

Giga Metals' core asset is the Turnagain project, located in Northern British Columbia, which contains one of the few significant undeveloped sulphide nickel and cobalt resources in the world. Turnagain is held in Hard Creek Nickel, a subsidiary owned jointly by Giga Metals and Mitsubishi Corp. The prefeasibility study was released in October, 2023.

The Turnagain ultramafic complex is also prospective for copper, platinum and palladium mineralization in the Attic zone, an area adjacent to the known nickel resource.

Technical information herein has been reviewed and approved by Greg Ross, PGeo. Mr. Ross is the project manager for Giga Metals and is a qualified person under National Instrument 43-101.

We seek Safe Harbor.