An anonymous director reports

PYROGENESIS SCHEDULES 2026 FIRST QUARTER FINANCIAL RESULTS AND BUSINESS UPDATE CONFERENCE CALL

PyroGenesis Inc. will host a conference call at 11 a.m. Eastern Time on Friday, May 8, 2026, to discuss the company's financial results for the first quarter ended March 31, 2026, as well as provide an update to the company's progress and other developments. To access the conference call by telephone, please preregister on-line.

Registrants will receive confirmation with dial-in details. A live webcast of the conference call can be accessed on-line.

The webcast will also be available on the investor relations section of the company's website in the days following the conference call.

About PyroGenesis Inc.

PyroGenesis leverages 35 years of plasma technology leadership to deliver advanced engineering solutions to energy, propulsion, destruction, process heating, emissions and materials development challenges across heavy industry and defence. Its customers include global leaders in aluminum, aerospace, steel, iron ore, utilities, environmental services, military and government. From its Montreal headquarters and local manufacturing facilities, PyroGenesis's engineers, scientists and technicians drive innovation and commercialization of energy transition and ultrahigh-temperature technology. PyroGenesis's operations are ISO 9001:2015 and AS9100D certified, with ISO certification maintained since 1997. PyroGenesis's shares trade on the Toronto Stock Exchange (symbol: PYR), the OTCQX (symbol: PYRGF) and the Frankfurt Stock Exchange (symbol: 8PY1).

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