Mandeville Ventures Inc. — M&A Activity 2026

Apr 17, 2026

MANDEVILLE VENTURES INC. 1568 Merivale Road, Suite 314 Ottawa, Ontario K2G 5Y7

PRIVATE & CONFIDENTIAL

April 17, 2026

Quantropi Inc. 15 Carling Ave., Suite 620 Ottawa, Ontario K1Z 8P9

Attention: Mr. James Nguyen, Chief Executive Officer

Dear Sirs:

Re: Amendment to Letter of Intent dated December 29, 2025 as amended – Mandeville Ventures Inc. and Quantropi, Inc.

This letter agreement (this “Amendment”) confirms the agreement of Mandeville Ventures Inc. (“Mandeville”) and Quantropi Inc. (“Quantropi” and together with Mandeville, the “Parties”) to amend certain terms of the letter of intent dated December 29, 2025, between the Parties as amended on March 30, 2026 (the “Letter of Intent”). Capitalized terms used but not defined herein have the meanings given to them in the Letter of Intent.

The Parties hereby agree to amend the Letter of Intent as follows:

1. Amendment to Section 16 – Closing Deadline.

Section 16 of the Letter of Intent is hereby amended by: (i) deleting the reference to "April 17, 2026" and replacing it with "April 24, 2026", so that the deadline for the Parties to negotiate, settle, and execute the Definitive Agreement shall be April 24, 2026 (or such other date as may be mutually agreed to in writing between the Parties).

1. Conforming Amendment to Section 20 – Termination.

Each reference to "April 17, 2026" in Sections 20(b), 20(c), and 20(d) of the Letter of Intent is hereby amended by deleting "April 17, 2026" and replacing it with "April 24, 2026".

1. Full Force and Effect.

Except as expressly amended by this Amendment, all terms and conditions of the Letter of Intent shall remain in full force and effect and are hereby ratified and confirmed. In the event of any conflict or inconsistency between this Amendment and the Letter of Intent, this Amendment shall govern.

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1. Counterparts.

This Amendment may be executed and delivered in counterparts (including by electronic signature), each of which shall be deemed an original and shall have the same legal effect as a handwritten signature, and all of which together shall constitute one and the same instrument.

If the foregoing correctly reflects your understanding, please indicate your acceptance by executing this Amendment in the space provided below and returning an executed copy to us.

Yours very truly,

MANDEVILLE VENTURES INC.

Per: (signed) "Dean Hanisch" Dean Hanisch President and Chief Executive Officer

THE TERMS OF THIS AMENDMENT ARE HEREBY ACCEPTED AND AGREED TO

QUANTROPI INC.

Per: (signed) "James Nguyen" James Nguyen Chief Executive Officer