Boron One Holdings Inc. — Proxy Solicitation & Information Statement 2025

Nov 7, 2025

November 07, 2025

Computershare

800 - 324 8th Avenue SW

Calgary AB, T2P 2Z2

www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: BORON ONE HOLDINGS INC.

Dear Sir/Madam:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Meeting Type : Annual General and Special Meeting
Record Date for Notice of Meeting : December 04, 2025
Record Date for Voting (if applicable) : December 04, 2025
Beneficial Ownership Determination Date : December 04, 2025
Meeting Date : January 09, 2026
Meeting Location (if available) : Virtual Meeting
Issuer sending proxy related materials directly to NOBO: Yes
Issuer paying for delivery to OBO: Yes

Notice and Access (NAA) Requirements:

NAA for Beneficial Holders No
NAA for Registered Holders No

Voting Security Details:

Description	CUSIP Number	ISIN
COMMON SHARES	10002E106	CA10002E1060

Sincerely,

Computershare

Agent for BORON ONE HOLDINGS INC.