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Hennessy Capital Investment Corp. VII filed a registration statement on Form S-4 with the U.S. SEC on December 23, 2025, to facilitate its proposed business combination with ONE Nuclear Energy LLC.

The transaction, announced on October 23, 2025, is expected to close in the first half of 2026, pending shareholder approval and SEC effectiveness. The merger aims to raise approximately $210 million in gross proceeds, supported by PIPE proceeds and cash in Hennessy VII's trust account, to further ONE Nuclear's development activities. Upon completion, the combined entity is anticipated to be listed on Nasdaq under the ticker