Black Hawk Acquisition Corp issued a convertible promissory note to its Sponsor, Black Hawk Management LLC, with a principal amount of up to $300,000. The note bears interest at 10% per annum starting July 8, 2026, and matures upon the closing of an initial business combination or liquidation. Upon conversion in a DeSPAC transaction, the note converts into common stock at $1.00 per share. This SPAC is seeking to identify and merge with a target company.

Black Hawk Acquisition Corporation deposited $150,000 into its trust account to extend the deadline for consummating an initial business combination by one month. The extension moves the date from August 22, 2026, to September 22, 2026. This SPAC operates in the financial services industry, specifically as a blank check company focused on identifying and merging with private entities.