MDA Space — Proxy Solicitation & Information Statement 2022

Mar 7, 2022

TMX

THE FUTURE IS YOURS TO SEE.

TSX TRUST COMPANY

VIA ELECTRONIC TRANSMISSION

March 7, 2022

TO ALL APPLICABLE EXCHANGES AND COMMISSIONS:

RE: MDA LTD.
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 Annual Meeting of Security Holders for the subject issuer:

1. ISIN: CA55292X1087
   CUSIP: 55292X108

2. Date Fixed for the Meeting: May 11, 2022

3. Record Date for Notice: April 1, 2022
4. Record Date for Voting: April 1, 2022
5. Beneficial Ownership Determination Date: April 1, 2022
6. Classes or Series of Securities that entitle the holder to receive Notice of the Meeting: COMMON
7. Classes or Series of Securities that entitle the holder to vote at the meeting: COMMON
8. Business to be conducted at the meeting: Annual
9. Notice-and-Access:
   Registered Shareholders: NO
   Beneficial Holders: NO
   Stratification Level: Not Applicable
10. Reporting issuer is sending proxy-related materials directly to Non-Objecting Beneficial Owners: YES
11. Issuer paying for delivery to Objecting Beneficial Owners: YES

Yours truly,
TSX Trust Company

" Rebecca Prentice "
Relationship Manager
rebecca.prentice@tmx.com

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