This Mutual Confidentiality and Non-Disclosure Agreement (this "Agreement") is entered into as of the date of the last signature below (the "Effective Date"), by and between Smith Robertson Enterprises (SRE), LLC, a Georgia limited liability company, with its principal place of business in DeKalb County, Georgia ("Company"), and the individual or entity identified on the signature page below ("Participant", and together with Company, the "Parties", and each individually, a "Party").

This Agreement is between the following Parties:

Entire Agreement: This Agreement, together with the PexSci CRE Qualified Beta Testing Program Description, Version 1.0, effective 8/15/26, attached as Exhibit A, and the PexSci CRE Beta Report Terms of Use and Disclaimers, Version 1.0, effective 8/15/26, attached as Exhibit B, constitutes the entire agreement between the Parties with respect to its subject matter and supersedes all prior or contemporaneous agreements, understandings, and communications, whether written or oral, relating to such subject matter. This Agreement is fixed as of its execution date and is not subject to modification, amendment, or revision by any subsequent communications or course of dealing. If any provision of this Agreement is held invalid or unenforceable, the remaining provisions shall continue in full force and effect, and the invalid or unenforceable provision shall be modified to the minimum extent necessary to make it enforceable. No waiver of any provision of this Agreement shall be effective unless in writing and signed by the waiving Party, and no such waiver shall constitute a waiver of any other or subsequent breach. Participant may not assign this Agreement, in whole or in part, without Company's prior written consent; Company may assign this Agreement in connection with a merger, acquisition, or sale of all or substantially all of its assets relating to the Platform.

Notices: Any notice, request, demand, or other communication required or permitted under this Agreement shall be in writing. Initial program execution and onboarding documentation shall be validly issued and processed through Company-authorized transaction systems, including Jotform (for document execution) and Intuit platforms (for payment processing). Subsequent formal business notices not requiring a signature shall be delivered to the physical or email address set forth on the signature page of this Agreement. Participant may update its notice address, provided that any such change must be submitted or confirmed by Participant in writing exclusively via: (a) a direct email request transmitted to beta@pexsci.com from the Participant's registered address, or (b) a verified contact form submission processed through the Company's official GoDaddy website portal, https://pexsci.com/contact-us. To be contractually effective, any such address change must be successfully recorded within the Company's primary Customer Relationship Management (CRM) system (HubSpot). Formal outbound notices sent by the Company via electronic mail (email) through HubSpot shall be deemed contractually effective and legally delivered: (i) twenty-four (24) hours after transmission, provided the system logs the email as successfully sent and the Company does not receive an automated non-delivery notification or bounce-back message within that period; or (ii) immediately upon the system tracking that the email has been opened by the recipient, whichever occurs first. Text messaging (SMS/MMS) is explicitly excluded and shall not constitute valid notice for any purpose under this Agreement.

16. Electronic Signatures
This Agreement may be executed electronically and in one or more counterparts, each of which shall be deemed an original, and all of which together shall constitute one and the same instrument. Electronic signatures, including signatures transmitted via electronic signature platforms, PDF, or other electronic means, shall be deemed valid and binding to the same extent as original handwritten signatures, in accordance with the U.S. Electronic Signatures in Global and National Commerce Act (E-SIGN Act) and the Georgia Uniform Electronic Transactions Act.

IN WITNESS WHEREOF, the Parties have executed this Agreement as of the Effective Date.

Smith Robertson Enterprises (SRE), LLC

Printed Name: Dawn Robertson

Title: Principal and Managing Member

Notice Address (per Section 15):

Physical Address: 1657 Rice Sq. Ste 200
Lithonia, GA 30058

Attn: Dawn Robertson

Email Address: beta@pexsci.com

Notice Address (per Section 15):