Company: GDSTR
Filing Date: 2025-06-20
Form Type: S-4/A
Source: 0001213900-25-055744
Chunk: 546

Company: Goldenstone Acquisition Ltd.
Filing Date: 2025-06-20
Form: S-4/A
Chunk 546
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 No Strict Construction. The language used in this Agreement will be deemed to be the language chosen by the parties to express their mutual intent, and no rules of strict construction will be applied against any party. 13. Dispute Resolution. Section 10.07 (Waiver of Jury Trial) of the BCA is incorporated by reference herein to apply with full force to any disputes arising under this Agreement. 14. Governing Law. Section 10.06 (Governing Law) of the BCA is incorporated by reference herein to apply with full force to any disputes arising under this Agreement. 15. Controlling Agreement. To the extent the terms of this Agreement (as amended, supplemented, restated or otherwise modified from time to time) directly conflicts with any provision in the BCA, the terms of this Agreement shall control. [ Signature page follows ] Annex A-96

IN WITNESS WHEREOF, the parties hereto have caused this Lock-up Agreement to be duly executed by their respective authorized signatories as of the date first indicated above.

| GOLDENSTONE ACQUISITION LIMITED |     |                         |
| By:                             |     |                         |
|                                 |     | Eddie Ni                |
|                                 |     | Chief Executive Officer |

| HOLDER:              |     |         |
| By:                  |     |         |
|                      |     | [Name]  |
|                      |     | [Title] |
| [Address for notice] |     |         |

Annex A-97 EXHIBIT D FORM OF
SPONSOR LOCK-UP AGREEMENT This Sponsor Lock-Up Agreement (this “ Agreement ”) is dated as of [•], 2024 by and between Goldenstone Holding, LLC, an Ohio limited liability company (the “ Sponsor ”) and Goldenstone Acquisition Limited, a Delaware corporation (the “ Parent ”). Capitalized terms used herein but not otherwise defined shall have the meanings set forth in the BCA (as defined below). RECITALS A. Parent, Pacifica Acquisition Corp., a Delaware corporation and wholly-owned subsidiary of the Parent, Infintium Fuel Cell Systems, Inc., a Delaware corporation (the “ Company ”) and Yan (Chris) Feng, solely in his capacity as representative, agent and attorney-in-fact of the Company Securityholders, entered into the Business Combination Agreement dated as of June 21, 2024 (the “ BCA ”). B. Pursuant to the BCA, the Company will merge with and into the