Company: GIGGU
Filing Date: 2025-09-29
Form Type: 425
Source: 0001193125-25-221783
Chunk: 220

Company: GigCapital7 Corp.
Filing Date: 2025-09-29
Form: 425
Chunk 220
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Capital7 following the Effective Time, to:

Hadron Energy, Inc.

1731
Embarcadero Road, Suite 200

Palo Alto, CA 94303

Attention: Dr. Raluca Dinu, Director

Dr. Avi S. Katz, Executive Chairman of the Board

Email: ***; ***

with a copy to:

DLA Piper LLP (US)

555 Mission
Street, Suite 2400

San Francisco, CA 94105

Attention: Jeff Selman; John Maselli

Email: jeffrey.selman@us.dlapiper.com; john.maselli@us.dlapiper.com

with a copy to:

Duane Morris LLP

1901 New York
Avenue N.W., Suite 700 East

Washington, DC 20001

Attn: Andy Tucker

Email: ATucker@duanemorris.com

(iv) if to a Lock-Up Party, to the address for notice set forth on such Lock-Up Party’s signature page to this Agreement.

7.7 . This Agreement, together with the Business Combination Agreement and Transaction Documents, constitutes the entire agreement among the parties hereto with respect to the subject matter hereof and supersedes all prior
agreements and undertakings, both written and oral, among the parties hereto, or any of them, with respect to the subject matter hereof. This right Agreement shall be binding upon and inure solely to the benefit of each party, and nothing in this
Agreement, express or implied, is intended to or shall confer upon any other person any benefit or remedy of any nature whatsoever under or by reason of this Agreement.

7.8 . This Agreement may be executed and delivered (including by facsimile or portable document format (pdf)
transmission) in one or more counterparts, and by the different parties in separate counterparts, each of which when executed shall be deemed to be an original but all of which taken together shall constitute one and the same agreement.

7.9 . The descriptive headings contained in this Agreement are included for convenience of reference only and
shall not affect in any way the meaning or interpretation of this Agreement.

7.10 . Each of the parties
hereto agrees that he, she or it has been represented by independent counsel of his, her or its choice during the negotiation and execution of this Agreement and each party hereto and his, her or its counsel cooperated in the drafting and
preparation of this Agreement and the documents referred to herein and,