WISeSat.Space Holdings Corp. announced the completion of its business combination with Columbus Acquisition Corp. on October 1, 2026. The combined entity will commence trading on the Nasdaq on October 2, 2026, under the ticker symbol SAIQ.

The transaction was approved by Columbus Acquisition Corp. shareholders at an extraordinary general meeting on September 30, 2026. All remaining closing conditions were satisfied or waived by the parties prior to the closing date.

Transaction details and advisors

The deal transforms WISeSat into a publicly listed company via a special purpose acquisition company (SPAC) structure. Maxim Group LLC served as the financial advisor to WISeSat. Legal counsel included Ellenoff Grossman & Schole LLP and Harney Westwood & Riegels (BVI) LP for WISeSat, while Loeb & Loeb LLP and Ogier represented Columbus Acquisition Corp.

About WISeSat.Space

WISeSat is a space technology company specializing in secure satellite communications for Internet of Things applications. The company integrates satellite infrastructure with cybersecurity and digital identity technologies to facilitate trusted communications between connected devices and ground-based systems.

About Columbus Acquisition Corp.

Columbus Acquisition Corp. is a blank check company formed for the purpose of effecting a merger or business combination. It is led by Fen "Eric" Zhang, Chairman and Chief Executive Officer, and Jie "Janet" Hu, Chief Financial Officer. The management team has a track record of value creation across various industries.

The press release includes forward-looking statements regarding the listing estimation, subject to risks and uncertainties inherent in future projections.

WISeSat.Space Holdings Corp, a wholly-owned subsidiary of WISeSat.Space Corp., has filed a registration statement on Form F-4 with the U.S. Securities and Exchange Commission (SEC) regarding its proposed business combination with Columbus Acquisition Corp. The filing, submitted on May 29, 2026, outlines the transaction that will result in the combined entity trading on Nasdaq under the ticker symbol SAIQ. The registration statement has not yet been declared effective by the SEC.

The business combination is governed by a definitive Business Combination Agreement dated November 9, 2025, involving WISeSat, Columbus Acquisition Corp, WISeSat.Space Holdings Corp (Pubco), WISeKey International Holding Ltd, and WISeSat Merger Sub Corp. Upon completion of the transaction, WISeSat and Columbus Acquisition Corp will become subsidiaries of Pubco. The combined company plans to operate under the brand SPACEAIQ, reflecting a focus on Space Infrastructure, Artificial Intelligence, and Quantum Technologies, while the WISeSat brand will continue to serve the satellite business.

WISeSat is developing secure satellite infrastructure and space-based services to support trusted communications and digital identity. The company aims to provide persistent, secure connectivity for government communications, industrial IoT, and critical infrastructure monitoring by combining low-earth-orbit satellite assets with cryptographic technologies. As part of the WISeKey group, WISeSat intends to extend Root of Trust and quantum-resilient security architectures into space.

Carlos Moreira, Chief Executive Officer of WISeSat, stated that the filing marks an important milestone in the company's path to becoming a Nasdaq-listed space infrastructure company. He emphasized that the transaction reflects progress toward creating a European, quantum-secure satellite platform for sovereign and trusted connectivity. The completion of the proposed transaction remains subject to closing conditions, including the approval of Columbus Acquisition Corp shareholders, the effectiveness of the registration statement, and approval of the listing of Pubco's shares by Nasdaq.

Maxim Group LLC is acting as the exclusive financial advisor to WISeKey, while Ellenoff Grossman & Schole LLP is serving as legal advisor to WISeSat and Pubco. Loeb & Loeb LLP is acting as legal advisor to Columbus Acquisition Corp. Investors and interested parties may access the registration statement and related documents through the SEC's website at www.sec.gov or via WISeKey's website at https://www.wisekey.com/ .