Contract analysis

1. Purpose of This Letter The purpose of this letter is to confirm the formal closure of Calderwood & Harkness LLP's ("C&H" or the "Firm") engagement on behalf of Vantage Mobility Systems Corp. ("VMS" or the "Company") in connection with the above-referenced patent infringement action, designated internally as Matter No. 1007-00003. We are pleased to report that all substantive obligations under the engagement have b

2. Summary of Final Disposition 2.1 Settlement Agreement Execution The Settlement Agreement and Mutual Release (the "Settlement Agreement") between Pinnacle Innovations LLC ("Pinnacle") and Vantage Mobility Systems Corp. was fully executed by all parties on June 4, 2025. As you are aware, C&H, together with VMS's in-house legal team, negotiated the terms of this agreement over the course of several weeks following th

3. Final Financial Summary Set forth below is a comprehensive summary of all costs and expenditures associated with the defense and resolution of this matter during the C&H engagement period (January 15, 2025 through June 2025). These figures have been compiled from the Firm's billing records and from invoices submitted by third-party vendors and co-counsel retained in connection with the defense. 3.1 Defense Costs (

4. Final Invoice and Retainer Credit The final invoice for services rendered and costs incurred during the month of June 2025 is enclosed with this letter. This invoice reflects the balance of professional fees for the final phase of the engagement, including the preparation of the Stipulation of Dismissal, post-settlement correspondence, and the administrative activities associated with matter closure. In accordance

5. Confidentiality Reminder We take this opportunity to remind VMS that, pursuant to Section 9 of the Settlement Agreement, the settlement amount and the specific terms of the agreement are confidential and may not be disclosed to any third party except as expressly permitted by the confidentiality provisions of the agreement. This obligation is mutual and applies to both VMS and Pinnacle. VMS may disclose the existe

6. Document Retention and Return of Client Files 6.1 Client Document-Retention Obligations Now that the Court has entered the Order of Dismissal and all obligations under the Settlement Agreement have been fully performed, no litigation hold remains in effect with respect to documents related to this action. VMS may release any internal litigation hold that was implemented in connection with the Pinnacle litigation,

7. Engagement Team and Post-Closure Contact The members of the C&H engagement team who served on this matter are listed below for your reference. Although the matter is now formally closed, each member of the team remains available to address any post-closure questions or issues that may arise: • Marcus Delgado — Responsible Partner • Catherine Bloom — Billing Partner • Omar Siddiqui — Lead Associate • Christy Bauer

8. Acknowledgments and Closing We wish to express our sincere appreciation to you and the entire VMS legal team for your cooperation, responsiveness, and partnership throughout the course of this engagement. The efficient flow of information and the thoughtful engagement of VMS's in-house team with case strategy and settlement discussions were instrumental in achieving a favorable and timely resolution of this matter

1. Final Invoice — Matter No. 1007-00003 (June 2025)

2. Cumulative Fee and Cost Summary cc: Catherine Bloom, Calderwood & Harkness LLP Omar Siddiqui, Calderwood & Harkness LLP David Mercer, Ridgeline Capital Management, LLC, 600 Lexington Avenue, 32nd Floor, New York, NY 10022 Category | Vendor/Provider | Amount Legal fees — lead counsel | Calderwood & Harkness LLP | $412,600.00 Legal fees — local counsel | Caldwell Barrow LLP (Sandra Caldwell, lead attorney; Tyler, TX