Giga Metals Corp. announced that the Company has filed on an independent technical report (the "Report") prepared in accordance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101") supporting the results of a Pre-Feasibility Study ("PFS") for the development of its Turnagain project located in British Columbia, Canada. The results of the PFS were previously reported in the Company's news release dated September 22, 2023, and there are no material differences in the Report from those results.

The effective date of the Report is September 22, 2023. PFS Highlights: Large Long-life Mine: Annual production averaging 37,288 t/y Ni+Co in concentrate over the nominal full operating rate period (Y3 - 28) based on a 30-year project life with an extremely low strip ratio of 0.4 tonnes waste per tonne ore. Positive Economics: Pre-tax IRR and NPV of 11.1% and $717 million (7% discount rate) and post-tax IRR and NP V of 11.4% and $574 million at a long-term nickel price of $9.75/lb, with 78% payability for nickel in concentrate; High-grade Concentrate: Nickel concentrate averaging 18% Ni and 1.1% Co with low impurities; Low-carbon Operation: Scope 1+2 carbon intensity of 2 per tonne of Ni in concentrate; Site Operating Costs: $3.85/lb Ni in concentrate before byproduct credits at mine gate (Y3 - 28 operating period).