• Black Hawk Acquisition issued convertible promissory note for up to USD 300,000 to sponsor Black Hawk Management on May 4, 2026, covering working capital advances.
• Note carries 10% annual interest from April 20, 2026, with repayment due at initial business combination or liquidation.
• Sponsor can take cash repayment or convert principal into post-combination common stock at USD 1 per share, with share count rounded up to whole shares.
• In liquidation, amounts due must be repaid in cash; note is unsecured, can be prepaid without penalty, sponsor waived claims on IPO trust account funds.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Black Hawk Acquisition Corporation published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001829126-26-004870), on May 08, 2026, and is solely responsible for the information contained therein.