Company: GIGGU
Filing Date: 2025-11-12
Form Type: S-4
Source: 0001193125-25-277896
Chunk: 655

Company: GigCapital7 Corp.
Filing Date: 2025-11-12
Form: S-4
Chunk 655
---
ENCIES

From time to time, the Company may be involved in litigation relating to claims arising out of its operations in the normal course of business. The Company currently is not a party to any legal proceedings, the adverse outcome of which, in management’s opinion, individually or in the aggregate, would have a material adverse effect on the Company’s results of operations, financial position or cash flows.

10. SUBSEQUENT EVENTS

The Company has evaluated all events or transactions that occurred after December 31, 2024 through November 12, 2025, which is the date that the financial statements were available to be issued. During this period, there were no material subsequent events requiring disclosure except as follows:

In February 2025, the Company entered into a vehicle lease through January 2028 with aggregate minimum lease payments of $80,519. In June 2025, the Company entered into an office lease through June 2026 with aggregate minimum lease payments of $70,270.

As noted in Note 1, on September 27, 2025, the Company entered into a Business Combination Agreement with GigCapital7.

Subsequent to December 31, 2024, the Company received gross proceeds associated with SAFEs equity financings aggregating approximately $4,263,500.**

<div align='center'>F-60</div>

### ANNEX A

#### Execution Version

#### DATED SEPTEMBER 27, 2025

### BUSINESS COMBINATION AGREEMENT
<div align='center'>BY AND AMONG</div>

#### GIGCAPITAL7 CORP.,

#### MMR MERGER SUB, INC.

#### AND

#### HADRON ENERGY, INC.
TABLE OF CONTENTS

|                                                          |     |                                                |     | Page |    |
| Article I THE TRANSACTIONS                               |     |                                                |     |      |  8 |
| Section 1.01                                             |     | The Domestication                              |     |      |  8 |
| Section 1.02                                             |     | The Merger                                     |     |      |  9 |
| Section 1.03                                             |     | Further Assurances                             |     |      | 10 |
| Article II CONSIDERATION                                 |     |                                                |     |      | 10 |
| Section 2.01                                             |     | Company Securities                             |     |      | 10 |
| Section 2.02                                             |     | Conversion                                     |     |      |