Company: GIGGU
Filing Date: 2025-11-13
Form Type: 425
Source: 0001193125-25-279073
Chunk: 1

Company: GigCapital7 Corp.
Filing Date: 2025-11-13
Form: 425
Chunk 1
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 in becoming a leader in the micro and small modular nuclear reactor industry in the years to come”, said Dr. Avi Katz.

The parties’ Form S-4 filing momentum follows its recently announced $1.2 billion definitive business
combination agreement with GigCapital7 Corp. (Nasdaq: GIG), positioning Hadron to become the world’s first publicly traded light-water MMR company. Achieving this milestone reinforces Hadron’s positioning at the forefront of the U.S.
nuclear industry.

About Hadron Energy, Inc.

Hadron
is a pioneer in MMR technology. Designed to deliver 10 MW of power, Hadron’s MMR will be smaller, more cost-effective, and faster to deploy than other proposed MMR power solutions. The revolutionary design of Hadron’s MMR allows its
reactor core and containment shell to be transportable in a shipping container, providing a versatile deployment model for end users. Whether powering an artificial intelligence data center, remote community, or an industrial hub, Hadron’s MMR
is expected to provide a reliable, safe and scalable nuclear energy solution. For more information, please visit https://www.hadronenergy.com/.

About GigCapital7 Corp.

GigCapital7 Corp. is a Private-to-Public Equity
(PPE) company, also known as a special purpose acquisition company (SPAC), with a Mentor-Investor methodology and a mission to
partner with a high technology differentiating company to forge a successful path to the public markets through a business combination. GigCapital7 Corp. aims to partner with an innovative company with exceptional leaders in order to create an
industry-leading partnership that will be successful for years to come.

Private-to-Public Equity
(PPE) and “Mentor-Investor are trademarks of GigManagement, LLC, a member entity of GigCapital Global and affiliate of
GigCapital7 Corp., used pursuant to agreement.

Forward-Looking Statements

This press release includes certain statements that may be considered forward-looking statements within the meaning of the federal securities laws.
Forward-looking statements include, without limitation, statements about future events or Hadron’s or GigCapital7’s future financial or operating performance. For example, statements regarding the construction and performance of the
Hadron Halo, Hadron’s anticipated growth and other metrics; the anticipated future demand of energy; the future demand and commercialization of the Hadron MMR; potential relationships or engagements; the outcome of Hadron’s regulatory
submissions; and statements regarding the benefits