Company Announcements

• David Ibbetson, Former General Manager of General Dynamics Mission Systems International joins board
• Paul Mangano retires from the Board

OTTAWA, ON , April 20, 2026 /PRNewswire/ - DEFSEC Technologies Inc. (TSXV: DFSC) (TSXV: DFSC.WT.U) (NASDAQ: DFSC) (NASDAQ: DFSCW) ("DEFSEC" or the "Company") today announced that David Ibbetson, former General Manager of General Dynamics Mission Systems International ("GDMS") has joined DEFSEC's board of directors. 

Mr. Ibbetson has more than 35 years in the Aerospace and Defence Industry, and 25 years with General Dynamics, where he served in progressively senior executive roles, most recently as the General Manager of the international division of General Dynamics Mission Systems, headquartered in Ottawa, Canada. Mr. Ibbetson successfully lead operations throughout Canada, United Kingdom, Italy, Saudi Arabia, Oman, Turkey and the UAE, delivering major US and Canadian programs such as Land C4ISR, CH-148 Cyclone and CP-140 Aurora Integrated Mission System and exporting products and systems into immense programs of the UK Ministry of Defense and other allied nations' militaries. During his tenure with General Dynamics Mission Systems Dave also built out significant programs in South America, Asia and Eastern Europe. "I'm excited to be joining DEFSEC's board at a critically important time for the Company and the defense and security industry. Digitization and integration is mission critical for the warfighter to secure and maintain operational advantage within the battle space. My goal is to see DEFSEC's technology embedded as standard kit, so that the warfighter can rely on this technology for mission success and survivability."

"Dave brings immense wisdom and experience to the Company," said Sean Homuth, President and CEO of DEFSEC. "His experience growing and leading defense enterprises on a global scale while successfully navigating relationships with governments and major defense contractors, will be of very great value to DEFSEC, as we enter a new phase of expected growth. Dave's expertise in architecting companies' technology development paths to ensure acceptance and alignment with major Canadian and related foreign programs is, of course, invaluable to DEFSEC," added Homuth, "I look forward to achieving great outcomes with Dave on board."

The Company also announced the departure of Paul Mangano from the DEFSEC board of directors. "Paul has agreed to step down to allow the board space to bring on a seasoned Canadian executive with deep experience in the delivery of large-scale Canadian defence programs.This aligns with Company's growth strategy and focus on increasing participation in Canada's Defence Industrial Strategy", commented Sean Homuth. "On behalf of the Board, I thank Paul for his guidance, hard work and commitment to the Company."

About DEFSEC

DEFSEC (TSXV: DFSC) (TSXV: DFSC.WT.U) (NASDAQ: DFSC) (NASDAQ: DFSCSW) (FSE: 62UA) develops and commercializes breakthrough next-generation tactical systems for military and security forces. The company's current portfolio of offerings includes digitization of tactical forces for real-time shared situational awareness and targeting information from any source (including drones) streamed directly to users' smart devices and weapons. Other DEFSEC products include countermeasures against threats such as electronic detection, lasers and drones. These systems can operate stand-alone or integrate seamlessly with OEM products and battlefield management systems, and all come integrated with TAK. The company also has a new proprietary less-lethal product line branded PARA SHOT^TM with applications across all segments of the non-lethal market, including law enforcement. The Company is headquartered in Ottawa, Canada.

For more information, please visit https://www.defsectec.com

Forward-Looking Statements

This news release contains "forward-looking statements" and "forward-looking information" within the meaning of Canadian and United States securities laws (collectively, "forward-looking statements"), which may be identified by the use of terms and phrases such as "may", "would", "should", "could", "expect", "intend", "estimate", "anticipate", "plan", "foresee", "have sight of", "believe", or "continue", the description of "optimism", " momentum" or "interest", the negative of these terms and similar terminology, including references to assumptions, although not all forward-looking statements contain these terms and phrases. Forward-looking statements are provided for the purpose of assisting the reader in understanding us, our business, operations, prospects and risks at a point in time in the context of historical and possible future developments and therefore the reader is cautioned that such information may not be appropriate for other purposes. Such forward-looking statements are based on the current expectations of DEFSEC's management and are based on assumptions and subject to risks and uncertainties that are documented in detail in the Company's public filings. Forward-looking statements included in this include, but are not limited to: management's belief of sufficiency of available financial resources to support forecasted activities in 2026 based on cash on hand, anticipated revenue streams and planned expenditures in the fiscal year, subject to execution of the Company's operating plan and other risks and factors describedin its public filings; interest in DEFSEC Lightning^TM or other products and services as well as timing of full implementation or commercial release thereof; the Company's estimates of increases to annualized gross margin on a go-forward basis and extent thereof, if any; the stage of scaled production for the PARA SHOT^TM technology into new training cartridges and timing of release thereof; and management's belief that its extensive customer base of law enforcement agencies for ARWEN throughout North America is a ready market for its new products like PARA SHOT^TM as well as DEFSEC Lightning^TM.

Although DEFSEC's management believes that the assumptions underlying such forward-looking statements are reasonable, they may prove to be incorrect. The forward-looking statements discussed in this news release may not occur by certain specified dates or at all and could differ materially as a result of known and unknown risk factors and uncertainties affecting DEFSEC, including DEFSEC's inability to execute on its current operating plan and/or fiscal 2026 forecasted activities, DEFSEC's inability to secure contracts and subcontracts (on the timelines, size and scale expected or at all), statements of work and orders for its products in fiscal 2026 and onwards for reasons beyond its control, the renewal or extension of agreements beyond their original term, the granting of patents applied for by DEFSEC, inability to finance the scale up to full commercial production levels for its physical products, inability to secure key partnership agreements to facilitate the outsourcing and logistics for its ARWEN ^® and PARA SHOT ^TM products, inability to commercialize DEFSEC's Battlespace Laser Identification Sensor System (BLISS), inability to secure or complete the execution of government contracts, inability to drive growth in DEFSEC's ARWEN ^® product line, inability to advance the commercialization of DEFSEC's PARA SHOT ^TM products, delay or inability to launch DEFSEC's Lightning SaaS offering, lower than expected or delayed demand for DEFSEC's BLISS, overall interest in DEFSEC's products being lower than anticipated or expected; general economic and stock market conditions; a stagnation or decrease in North American defense and public safety spending, adverse industry events; future legislative and regulatory developments in Canada, the United States and elsewhere; the inability of DEFSEC to implement and execute its business strategies; risks and uncertainties detailed from time to time in DEFSEC's filings with the Canadian Security Administrators and the United States Securities and Exchange Commission, and many other factors beyond the control of DEFSEC. Although DEFSEC has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results to differ from those anticipated, estimated or intended. Except as required by applicable securities laws, forward-looking statements speak only as of the date on which they are made and DEFSEC undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Neither the TSX Venture Exchange nor its respective Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.

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