File: Attachment AAR NR Zero Nox April 9 26.pdf

ARMADA MERCANTILE LTD. 9575 Pinehurst Drive Roseville, CA 95747 Tel: 916-787-4278

cole@armadamercantile.com

April 9, 2026

TRADE SYMBOL: ARM-Canadian Securities Exchange TRADE SYMBOL: AAMTF-OTC Markets United States

ZeroNox Update on Business

Armada Mercantile Ltd. (CSE Symbol: ARM. USA Symbol: AAMTF), through its seven (7%) percent ownership portfolio company Zero Nox Inc. ("ZeroNox"), highlights the following business and newsletter (Full Newsletter) update:

dot Zeronox has received its second California Air Resources Board (CARB) Executive Order covering the Zeronox EV Retrofit Kit for Class 8 vehicles, including heavy-duty trucks and transit buses.

dot Zeronox is in the final stages of completing its California HVIP manufacturer eligibility application to conduct an all- electric range (AER) test, one of the key remaining requirements before vehicles appear in the California HVIP Eligible Vehicles Catalog.

dot Zeronox and TREDC have officially launched the Pleasant View School District school bus retrofit conversion process, gaining real experience in clean transportation and vehicle electrification.

dot Zeronox was issued a United States patent for its Venturi Device with Forced Induction technology, by the U.S. Patent and Trademark Office. The patent covers a novel supercharger system incorporating a Venturi device that uses exhaust gas recirculation and vortex formation to compress intake air for internal combustion engines, without the use of traditional mechanically moving components.

dot Zeronox has successfully completed a Stage 4 Vortex Infusion Chamber (VIC) pilot program with Obayashi Corporation, focused on system installation and bringing a proprietary VIC CC system online across pilot vehicles.

dot Zeronox CEO and President Robert Cruess will be a featured panelist at ACT Expo 2026, North America's largest fleet technology conference and expo, taking place May 4 7, 2026, at the Las Vegas Convention Center.

About ZeroNox: The Zeronox Electric Powertrain Platform is the OEM and fleet solution to a cleaner, higher-performing, and cost-effective future. The platform is scalable for commercial and industrial vehicles and agile enough to adapt to new technology as it becomes available. For more information, visit: https://www.zeronox.com and https://www.linkedin.com/company/zeronox/

For more information pertaining to Armada Mercantile Ltd., visit: www.armadamercantile.com.

"Patrick Cole" President

Contact Telephone Number: 916-787-4278. This press release may contain forward-looking statements, which are made pursuant to the safe

harbor provisions of the Private Securities Litigation Reform Act of 1995. Expressions of future goals and similar expressions reflecting something other than historical fact are intended to identify forward-looking statements, but are not the exclusive means of identifying such statements. These forward-looking statements involve a number of risks and uncertainties. The actual results that the Company achieves may differ materially from any forward-looking statements due to such risks and uncertainties. The Company undertakes no obligations to revise or update any forward-looking statements in order to reflect events or circumstances that may arise after the date of this news release. The risks and uncertainties discussed in documents filed by the Company with the British Columbia, Alberta and Ontario Securities Commissions.