Company: GIGGU
Filing Date: 2025-09-29
Form Type: 425
Source: 0001193125-25-221783
Chunk: 137

Company: GigCapital7 Corp.
Filing Date: 2025-09-29
Form: 425
Chunk 137
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 notice). Actual notice is effective notice for all purposes hereunder.

| If to the Purchaser:             |     | with a copy (which will not constitute notice) to: |
| GigCapital7 Corp.                |     | DLA Piper LLP (US)                                 |
| 1731 Embarcadero Road, Suite 200 |     | 555 Mission Street, Suite 2400                     |
| Palo Alto, CA 94303              |     | San Francisco, CA 94105                            |
| Attn: Dr. Avi Katz               |     | Attn: Jeffrey C. Selman; John F. Maselli           |
| Email: ***                       |     | Email: Jeffrey.Selman@us.dlapiper.com;             |
|                                  |     | John.Maselli@us.dlapiper.com                       |
| If to the Company, to:           |     | with a copy (which will not constitute notice) to: |
| Hadron Energy, Inc.              |     | Duane Morris LLP                                   |
| 3 Twin Dolphin Drive, STE 260    |     | 901 New York Avenue N.W., Suite 700 East           |
| Redwood City, CA 94065           |     | Washington, DC 20001-4795                          |
| Attn: Samuel Gibson              |     | Attn: Andy Tucker                                  |
| Email: ***                       |     | Email: ATucker@duanemorris.com                     |

Section 9.03 Binding Effect; Assignment. This Agreement and all of the provisions hereof shall be binding upon and inure to the benefit of the Parties and their respective successors and permitted assigns. This Agreement shall not be assigned by operation of Law or otherwise without the prior written consent of the Parties, and any assignment without such consent shall be null and void; providedthat no such assignment shall relieve the assigning Party of its obligations hereunder. Section 9.04 Third Parties. Except for the Persons granted the rights set forth in Section 6.19, which the Parties acknowledge and agree are express third party beneficiaries of this Agreement, nothing contained in this Agreement or in any instrument or document executed by any Party in connection with the Transactions shall create any rights in, or be deemed to have been executed for the benefit of, any Person that is not a Party hereto or thereto or a successor or permitted assign of such a Party. 60

Section 9.05 . This Agreement, and
all claims or causes of action