Mr. P. Peter Pascali reports

PYROGENESIS CONFIRMS COMPLETION OF INSTALLATION OF 4.5 MW PLASMA TORCH SYSTEM AT U.S. DEFENSE AND AERONAUTICS RESEARCH FACILITY

PyroGenesis Inc. has confirmed that installation of the company's 4.5-megawatt plasma torch system for a U.S. defence and aeronautics research facility, has been completed. The system and its auxiliary components are now undergoing final adjustments to ensure specification compliance.

As announced previously, PyroGenesis signed a contract valued at approximately $4.13-million (Canadian) ($3.13-million (U.S.)) with a U.S. corporation that regularly serves as a prime contractor for the U.S. government as well as for public and private customers in the aeronautics and related industries. The contract is for the design and build of a 4.5-megawatt plasma torch system and related peripherals. The project is the first of two large-scale plasma torch system projects for this client, which subsequently ordered a 20-megawatt plasma torch, announced Oct. 21, 2024. The 20-megawatt torch system, with a signed budget of $27-million (Canadian) ($19.6-million (U.S.)), is expected to be the largest plasma torch ever produced commercially, based on the company's own research.

The 4.5-megawatt plasma torch system was subsequently delivered to the client (announced Jan. 27, 2026), pending completion of the client's facility to enable installation. Over the past few weeks, the system and related peripheral components were installed. Live preoperational start-up and testing of the plasma torch have commenced.

Once fully operational and all specification adjustments have been completed, the plasma torch is expected to operate within an extreme-temperature test tunnel, generating the ultrahigh-temperature conditions required to expose materials and scale models to extreme thermal environments and assess their performance for aeronautics applications. For reference, a 4.5-megawatt plasma torch is equivalent to the average concurrent electricity demand of approximately 3,750 average U.S. homes (based on an average U.S. household's continuous demand of 1.2 kilowatts).

The client is a leading centre for innovation, technology development and testing in support of critical defence, military and aeronautics applications. Its world-class scientific community includes internationally recognized experts whose collective contributions span numerous landmark achievements in U.S. aeronautics. The client's facilities house unique full-scale test conditions considered essential to U.S. national security.

"This announcement marks an important milestone in the deployment of our high-power plasma technology for advanced aeronautics testing," said P. Peter Pascali, president and chief executive officer of PyroGenesis. "With the torch now installed, the system will proceed through commissioning before entering its intended operational phase, where the system is expected to support the client's specialized test programs by providing a controlled, high-power plasma heat source capable of generating exceptionally demanding thermal conditions. This installation also represents an important step in our ongoing relationship with the client, which has already ordered a 20-megawatt plasma torch. The 20-megawatt system represents the next major scale-up in plasma power and, based on our research, is expected to be the largest plasma torch ever produced commercially."

Today's announcement complemented other advancements to the company's high-powered plasma torch business line that the company has previously announced. The following is a short summary of two of the more prominent projects that are currently under way.

Constellium

As previously announced (see press release dated Aug. 5, 2025), PyroGenesis signed an industrial implementation contract with Constellium, one of the world's largest aluminum transformation and recycling companies, for the sale of plasma torch technology and related peripheral components, for use in a Constellium aluminum remelting furnace. This followed a previous announcement (see press release dated April 10, 2024) detailing a collaboration agreement whereby Constellium stated its intention to use PyroGenesis plasma torches as potential replacement heating sources in Constellium's aluminum casthouses.

More recently, the company announced (see press release March 6, 2026) successful completion of the system and commencement of the delivery and installation phase.

The company today reports that the system has been operating successfully since early June, 2026, within a furnace at a Constellium manufacturing plant in France. Since that time, the furnace has been successfully producing aluminum, using PyroGenesis's plasma torch system as the furnace heat source.

The system will continue operating and producing aluminum during October, at which point the first phase of the collaboration agreement will be completed. At that point, the next phase in the collaboration agreement will be discussed between Constellium and PyroGenesis.

Norsk Hydro ASA

As previously announced (see press release dated Feb. 24, 2025), PyroGenesis signed a 1.63-million-euro ($2.4-million (Canadian)) contract with Hydro, a Norway-based aluminum and renewable energy company that, since its founding in 1905, has become one of the largest aluminum producers in the world and one of the most respected and influential leaders in heavy industry. The contract with PyroGenesis is to test plasma technology as one of the ways to replace fossil fuels with renewable alternatives in its aluminum casthouses. This contract followed Hydro publicly announcing (in January, 2024) its stated goal to achieve net-zero emissions across the entire aluminum value chain by 2050, including its intention to test plasma technology in its test centre in Sunndal, Norway.

The company today reports that the development of the plasma torch system for Hydro has been completed, and the system and related components are expected to arrive at Hydro's Sunndal facility during Q4 2026. The plasma torch system will then be installed in an aluminum furnace, with start-up and commissioning expected to be completed during Q1 2027.

Hydro's Sunndal facility is the largest and most modern primary aluminum plant in Europe. The facility, which also houses remelting, casthouse, and research and development activities, produces over 400,000 tonnes of primary aluminum, 500,000 tonnes of casthouse products and 80,000 tonnes of anodes annually.

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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