Nauticus Robotics, Inc. At-The-Market Offering Opinion

Nauticus Robotics, Inc. filed a Form 8-K on September 16, 2025, which included an opinion from Norton Rose Fulbright US LLP regarding the company's at-the-market (ATM) offering. The ATM Agreement, dated May 20, 2024, allows Nauticus Robotics to issue and sell up to $2,200,000 of its common stock. The opinion confirms that the shares, when issued and paid for in accordance with the ATM Agreement, will be validly issued, fully paid, and non-assessable. The filing also includes the consent of Norton Rose Fulbright US LLP to reference their firm in the Registration Statement and Prospectus Supplements.