PyroGenesis Inc. — Declaration of Voting Results & Voting Rights Announcements 2021

Apr 22, 2021

April 22, 2021

Nova Scotia Securities Commission Alberta Securities Commission Manitoba Securities Commission Ontario Securities Commission

Superintendent of Securities, Prince Edward Island

Securities Commission of Newfoundland and Labrador Saskatchewan Financial and Consumer Affairs Authority New Brunswick Financial and Consumer Services Commission British Columbia Securities Commission

Autorité des marchés financiers

RE: PYROGENESIS CANADA INC.

Pursuant to a request from the above-mentioned reporting issuer, we wish to advise you of the following information in connection with its Annual and Special Meeting of Shareholders, virtual only:

Date of meeting:	June 22, 2021
Record date for notice:	May 17, 2021
Record date for voting:	May 17, 2021
Beneficial ownership determination date:	May 17, 2021
Securities entitled to notice:	Common shares
Securities entitled to vote:	Common shares
Issuer mailing directly to non-objecting beneficial owners:	Yes
Issuer will pay for objecting beneficial owner material distribution:	Yes
Issuer using notice-and-access for registered investors:	No
Issuer using notice-and-access for non-registered investors:	No
Notice-and-access stratification criteria:	No

Sincerely,

Trust Central Services AST Trust Company (Canada)