Chain Bridge I entered into an amendment to its $1,250,000 unsecured, non-interest bearing senior note, extending the maturity date from June 30, 2026, to November 15, 2026. The company also issued new unsecured, non-interest bearing promissory notes with an aggregate principal amount of $312,500 for an aggregate purchase price of $250,000, which are due on November 15, 2026.