Mr. P. Peter Pascali reports

PYROGENESIS RECEIVES PROJECT CERTIFICATION FROM TATA STEEL FOR MAJOR STEEL PLANT PROJECT

PyroGenesis Inc.'s subsidiary, Pyro Green-Gas Inc. (PGG), has received the final acceptance certificate for a previously announced major project undertaken for Tata Steel (the client), one of the world's leading diversified steel producers. The certificate confirms successful completion of the one-year operational liability period and formally transfers responsibility for future operation of the system to the client.

"The final acceptance certificate announced today marks the culmination of years of close collaboration with Tata Steel to develop and implement a solution for one of its largest steelmaking facilities," said P. Peter Pascali, president and chief executive officer of PyroGenesis. "The steel industry's off-gas processing sector has traditionally been dominated by some of the world's largest engineering firms, making the successful completion and final acceptance of a system of this scale particularly significant for PyroGenesis. The system installed for Tata Steel covers an area equivalent to a football field and spans the height of a five-storey building. Having demonstrated our technology and engineering capabilities at this scale, we are now attracting interest from other major steelmakers. With more than 1,400 blast furnaces installed across 477 plants in 55 countries and continued investment in blast-furnace steelmaking -- with approximately 70 per cent of planned new global steel projects expected to incorporate blast furnaces -- we believe there is a significant market opportunity for our advanced coke-oven gas cleaning and other steel industry technologies."

About the final acceptance certificate

As announced on July 15, 2025, PGG completed a major project for Tata Steel to develop and supply coke-oven gas purification solutions and hydrogen production processes designed to separate and recover hydrogen while removing toxic contaminants from coke oven gas. Under the terms of the agreement, PGG successfully passed all required project milestones. These milestones included: (i) an integrated cold test, which confirmed that all equipment and components met or exceeded the required operating and safety standards; and (ii) a provisional acceptance test, which verified that the systems met agreed-upon contractual specifications.

The project completion announced in July, 2025, initiated a one-year compliance and defects liability period, during which system performance was monitored and PGG remained responsible for addressing any operational deficiencies. Such periods are standard for industrial projects of this scale. Generally, following the conclusion of such one-year period, a client may either extend the evaluation period or issue final acceptance, thereby assuming responsibility for future operations. Tata Steel has now issued the signed final acceptance certificate, confirming completion of PGG's work under the agreement and the transfer of responsibility for future operations of the system to Tata Steel.

About the Tata Steel coke-oven gas valorization and hydrogen production project

Blast furnaces utilize coking coal, or coke, as part of the process to transform iron ore into steel. Coke acts as both a fuel to generate the intense heat required for smelting and as a reducing agent to remove oxygen from the iron ore. The gas released during the coke production process, known as coke-oven gas, is a toxic mix of human carcinogens comprising approximately 54 per cent hydrogen, with the balance consisting of methane, carbon monoxide, carbon dioxide, tar, naphthalene and other hydrocarbons, which must be separated and removed before the hydrogen can be cleaned, reformed and reused. PyroGenesis's subsidiary, Pyro Green-Gas, has decades of experience designing and installing technology solutions specifically for these situations.

As stated above, PGG supplied both coke-oven gas purification solutions and hydrogen production processes geared to extract hydrogen and other toxic gases from the blast furnace process. The gases were then separated, cleaned and processed to render hydrogen to a 99.999-per-cent-purity level. The plant has been in continuous 24-hour-per-day operation at the Tata Steel facility in Kalinganagar, India, where the newly reformed hydrogen produced by the system is being reused in other applications at the facility, thereby improving production efficiency and environmental outcomes. The systems installed by PGG are purifying 32,000 cubic metres of coke-oven gas per hour while extracting 620 cubic metres of ready-to-use hydrogen per hour.

About Pyro Green-Gas Inc.

Pyro Green-Gas offers technologies, equipment and expertise in biogas upgrading and air pollution controls. Pyro Green-Gas designs and builds: (i) gas-upgrading systems to convert biogas to renewable natural gas (RNG); (ii) pyrolysis-gas purification; (iii) biogas and landfill-gas flares and thermal oxidizers; and (iv) purification of coke-oven gas (a byproduct in the primary steel industry arising from the conversion of coal into coke) into high-purity hydrogen, which is in high demand across the industry. In addition, Pyro Green-Gas produces a line of landfill-gas flares that reduce greenhouse gas emissions from landfills and is actively involved in gas purification and separation, reforming and synthesis of hydrocarbon gases, as well as waste-gas and solid-waste valorization systems.

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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