Thunderbird Minerals Signs Option Agreement to Acquire Big Onion Copper-Molybdenum Property

Thunderbird Minerals Corp., listed on the TSX Venture Exchange as BIRD.V, has signed a definitive agreement to acquire an option on the Big Onion copper-molybdenum property. The deal, announced November 3, 2026, adds a copper-molybdenum target to the Vancouver-based junior miner's existing portfolio, which includes the Argo copper-gold project in British Columbia and the Apache project in California.

Thunderbird is a small-cap explorer incorporated in 2022 with a market capitalization in the range of approximately CAD 825,000 to 900,000, making the Big Onion option a strategically meaningful expansion of its mineral property holdings. No financial terms of the option agreement were disclosed in the initial announcement.