DEFSEC TECHNOLOGIES — Regulatory Filings 2024

Aug 20, 2024

TMX

THE FUTURE IS YOURS TO SEE.

TSX TRUST COMPANY

VIA ELECTRONIC TRANSMISSION

August 20, 2024

TO ALL APPLICABLE EXCHANGES AND COMMISSIONS:

RE: KWESST MICRO SYSTEMS INC. Confirmation of Notice of Record and Meeting Dates

We are pleased to confirm that Notice of Record and Meeting Dates was sent to The Canadian Depository for Securities.

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

1. ISIN: CA5015066049 CUSIP: 501506604

2. Date Fixed for the Meeting: September 27, 2024

3. Record Date for Notice: August 22, 2024

4. Record Date for Voting: August 22, 2024

5. Beneficial Ownership Determination Date: August 22, 2024

6. Classes or Series of Securities that entitle the holder to receive Notice of the Meeting: COMMON SHARES

7. Classes or Series of Securities that entitle the holder to vote at the meeting: COMMON SHARES

8. Business to be conducted at the meeting: Special

9. Notice-and-Access:

• Registered Shareholders: NO
• Beneficial Holders: NO
• Stratification Level: Not Applicable

1. Reporting issuer is sending proxy-related materials directly to Non-Objecting Beneficial Owners: YES
2. Issuer paying for delivery to Objecting Beneficial Owners: YES

Yours truly, TSX Trust Company

VANCOUVER 733 Seymour Street, Suite #2310 Vancouver, BC V6B 0S6 T 604 689-3334

CALGARY Telus Sky Building 2110, 685 Centre Street SW Calgary Alberta T2G 1S5 T 403 218-2800

TORONTO 301 - 100 Adelaide Street West Toronto ON M5H 4H1 Toll Free 1-866-600-5869 T 416 361-0930

MONTRÉAL 1701 - 1190, avenue des Canadiens-de-Montréal, C. P. 37 Montréal (Québec) H3B 0G7 T 514 395-5964