Black Hawk Acquisition issues up to $300K convertible note to sponsor for working capital

Black Hawk Acquisition Corp

Note dated Aug 21, 2026, up to $300,000 from Black Hawk Management LLC (sponsor) for working capital and extension fees.
10% annual interest from July 8, 2026, for one year; due at DeSPAC closing or liquidation.
Sponsor may convert principal into shares at $1.00/share (approx 1/10 of IPO price) upon DeSPAC; cash repayment in liquidation.
Sponsor waives claims against trust account; note unsecured, issued under Section 4(a)(2) exemption.

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