PyroGenesis director's post contains incorrect info

An anonymous director reports PYROGENESIS COMMENTS ON RECENT ONLINE POST PyroGenesis Inc. has provided the following comment in regard to a recent on-line post from a current member of the company's board of directors. On Saturday, Oct. 11, 2025, it came to the company's attention that an on-line post from a current member of the PyroGenesis board of directors had been made on the night of Friday, Oct. 10, outside of market hours. This post contained information regarding the company's recently announced non-brokered private placement. A portion of this information should not have been posted and is incorrect. Upon recognizing the error, the post was quickly deleted. PyroGenesis asks that any versions of this since-deleted post be disregarded and not disseminated further. More specifically, the post contained details about the private placement that had been previously released; however, it also contained a sentence that "(the company's ongoing private placement) has been oversubscribed bringing in between [$7.5-million to $8.0-million] to the company." While the company had previously announced, on Oct. 1, 2025, its intention to conduct this non-brokered private placement, with a potential financing of approximately $5-million, the private placement is currently in progress, and neither a statement of oversubscription, nor a suggestion that the private placement is complete can be formally, nor accurately, stated at this time. As a matter of clarification, the company can state that, at the time of this press release, the private placement is not officially oversubscribed. It can further confirm that the first tranche of the first unit group of the private placement is expected to be completed during the coming week. PyroGenesis is committed to timely disclosure and takes corporate governance seriously. The board of directors has reviewed this situation in full, and corrective action has been taken. About PyroGenesis Inc. PyroGenesis leverages 30 years of plasma technology leadership to deliver advanced engineering solutions to energy, propulsion, destruction, process heating, emission and material 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 has engineers, scientists and technicians who 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, OTCQX and Frankfurt stock exchanges. We seek Safe Harbor.