AETR · Aetherion Technologies Inc. · Investor Relations

VANCOUVER, British Columbia, May 07, 2026 (GLOBE NEWSWIRE) - Westport Fuel Systems Inc. (“Westport") (TSX:WPRT / Nasdaq: WPRT), announces that the Company will release Q1 2026 financial results on Thursday, May 14, 2026, after market close. A conference call and webcast to discuss the financial results and other corporate developments will be held on Friday, May 15, 2026. Time: 10:00 a.m. ET (7:00 a.m. PT) Call Link: https://register-conf.media-server.com/register/BI3e720c77c229442a996fb016347da48e Webcast: https://investors.westport.com Participants may register up to 60 minutes before the event by clicking on the call link and completing the online registration form. Upon registration, the user will receive dial-in info and a unique PIN, along with an email confirming the details. The webcast will be archived on Westport’s website and a replay will be available at https://investors.westport.com . About Westport Westport is a technology and innovation company

Westport’s next‑generation compressed natural gas fuel storage system, combined with Cespira's on-engine HPDI™ fuel system, marks a major step toward commercializing heavy-duty trucks with diesel performance and efficiency using widely available compressed natural gas VANCOUVER, British Columbia, April 30, 2026 (GLOBE NEWSWIRE) - Westport (TSX:WPRT / Nasdaq:WPRT), a global leader in advanced alternative fuel systems for the transportation industry, today announced the first North American demonstration of its compressed natural gas (CNG) fuel storage system combined with the on-engine HPDI™ fuel system of Cespira, Westport’s joint venture with Volvo Group, at ACT Expo 2026 , taking place May 4-7 in Las Vegas. These systems are installed on a latest-generation Volvo VNL 300 truck with 500 horsepower and 1,850 lb-ft of torque, and with fuel efficiency on CNG closely comparable to the VNL running on diesel fuel. For the first time, Westport is showcasing the system in real‑world

2025 brought enhanced liquidity through completed Light Duty divestiture, the launch of GFI branded production in China and Canada, new HPDI™ OEM interest and global market traction for Cespira VANCOUVER, British Columbia, April 23, 2026 (GLOBE NEWSWIRE) - Westport Fuel Systems Inc. (“Westport”) (TSX: WPRT / Nasdaq: WPRT) today reported financial results for the fourth quarter and year ended December 31, 2025, and provided an update on operations. All figures are in U.S. dollars unless otherwise stated. “We appreciate the patience and support of our shareholders as we worked through our recent cybersecurity incident. Our priority was to ensure the integrity of our IT systems, business continuity and financial reporting, and we are pleased to confirm that this review has been successfully completed. With this behind us, we are looking forward to executing on our strategy and delivering on the next phase of our business objectives. Turning to our financial results, the past year has

VANCOUVER, British Columbia, April 20, 2026 (GLOBE NEWSWIRE) - Westport Fuel Systems Inc. (TSX: WPRT / Nasdaq: WPRT) (“Westport” or “The Company”) announces that the Company will release 2025 financial results on Thursday, April 23, 2026, after market close. A conference call and webcast to discuss the financial results and other corporate developments will be held on Friday, April 24, 2026. Time: 10:00 a.m. ET (7:00 a.m. PT) Call Link: https://register-conf.media-server.com/register/BIefca98da5fb34b16a81dd15541e90b0c Webcast: https://investors.westport.com Participants may register up to 60 minutes before the event by clicking on the call link and completing the online registration form. Upon registration, the user will receive dial-in info and a unique PIN, along with an email confirming the details. The webcast will be archived on Westport’s website and a replay will be available at https://investors.westport.com . About Westport Westport is a technology and innovation

VANCOUVER, British Columbia, April 15, 2026 (GLOBE NEWSWIRE) - Westport Fuel Systems Inc. (“Westport" or the “Company”) (TSX:WPRT / Nasdaq: WPRT) is providing this bi-weekly management cease trade order status report in accordance with National Policy 12-203 – Management Cease Trade Orders (“NP 12-203“). On April 1, 2026, the Company announced that, at the request of the Company, the British Columbia Securities Commission issued a temporary management cease trade order against the Company (the “MCTO”) under NP 12-203 in connection with the Company’s delayed filing of its: (i) audited consolidated financial statements for the fiscal year ended December 31, 2025 (the “Annual Financial Statements“), (ii) management’s discussion and analysis relating to the Annual Financial Statements, (iii) CEO and CFO certificates relating to the Annual Financial Statements and (iv) annual information form on Form 20-F (collectively, (the “Annual Filings“), as a result of the cybersecurity incident

VANCOUVER, British Columbia, April 01, 2026 (GLOBE NEWSWIRE) - Westport Fuel Systems Inc. (“Westport" or the “Company”) (TSX:WPRT / Nasdaq: WPRT) today announced that the British Columbia Securities Commission, the Company’s principal regulator, has issued a temporary management cease trade order (the “MCTO“) against the Company under National Policy 12-203 – Management Cease Trade Orders (“NP 12-203“). The MCTO restricts trading in the Company’s securities by the CEO and CFO, but does not restrict trading by other shareholders or investors. “On March 20, 2026, we announced that we had recently identified unauthorized access to certain internal systems and acted immediately to contain the incident, engaging cybersecurity experts and strengthening our safeguards,” said Dan Sceli, Chief Executive Officer of Westport. “Importantly, our core operations remain unaffected, with no disruption to manufacturing or customer delivery. As we complete a thorough review to ensure the integrity of

Advancing HPDI Technology for Hydrogen Fuel VANCOUVER, British Columbia, April 01, 2026 (GLOBE NEWSWIRE) - Westport Fuel Systems Inc. ( “ Westport" or the “Company”) (TSX:WPRT / Nasdaq:WPRT), a leading supplier of advanced alternative fuel systems and components for the global transportation industry, is pleased to announce that its joint venture, Cespira and their HPDI™ fuel system technology will be utilized by Volvo in on-road testing of heavy-duty trucks powered by hydrogen. Volvo has indicated that a commercial launch is planned to take place prior to 2030. “On-road testing is a key milestone in demonstrating that Cespira’s hydrogen HPDI fuel system is a cost-effective solution that operates on a zero-carbon fuel while delivering best-in-class power, torque, and efficiency,” said Dan Sceli, Chief Executive Officer of Westport. “Hydrogen use in an internal combustion engine with Cespira’s HPDI fuel system delivers nearly 100% CO2 reductions over diesel fueled trucks while allowing

VANCOUVER, British Columbia, March 20, 2026 (GLOBE NEWSWIRE) - On March 17, 2026, Westport Fuel Systems Inc. (“Westport" or “the Company”) (TSX:WPRT / Nasdaq: WPRT) identified unauthorized access to its network. This incident involved unauthorized access to certain of Westport’s internal IT business applications along with other business and employee information. Immediately upon learning of the incident, the Company engaged experts, activated our incident response protocol, and took action to contain the incident. Our investigation is continuing. We are in the process of identifying additional security protocols that we can implement to respond to the evolving landscape of cybersecurity threats. The Company’s manufacturing operations are managed on dedicated servers that are separate from those accessed in connection with this incident. As a result, the incident has not affected the continuity of our manufacturing activities. Our ability to fulfill customer orders and maintain

VANCOUVER, British Columbia, March 12, 2026 (GLOBE NEWSWIRE) - Westport Fuel Systems Inc. (TSX: WPRT / Nasdaq: WPRT) (“Westport” or “The Company”) announces that the Company will release 2025 financial results on Thursday, March 26, 2026, after market close. A conference call and webcast to discuss the financial results and other corporate developments will be held on Friday, March 27, 2026. Time: 9:00 a.m. ET (6:00 a.m. PT) Call Link: https://register-conf.media-server.com/register/BIe85f76e1734944a1a55b770ad7d41fe1 Webcast: https://investors.westport.com Participants may register up to 60 minutes before the event by clicking on the call link and completing the online registration form. Upon registration, the user will receive dial-in info and a unique PIN, along with an email confirming the details. The webcast will be archived on Westport’s website and a replay will be available at https://investors.westport.com . About Westport Westport is a technology and innovation company

~ Previously announced Light-Duty divestiture providing non-dilutive capital that strengthens Westport’s cash position~ VANCOUVER, British Columbia, Feb. 04, 2026 (GLOBE NEWSWIRE) - Westport Fuel Systems Inc. (“Westport") (TSX:WPRT / Nasdaq: WPRT), a supplier of alternative fuel systems and components for the global transportation industry, today announced that it has received $6.5 million (Euro 5.5 million) as part of its previously announced sale of the Light-Duty segment. The escrow payment was triggered under the terms of the sale agreement following the achievement of a defined post-closing milestone. “This milestone payment reflects continued progress in the post-closing steps of our Light-Duty business divestiture,” said Elizabeth Owens, Chief Financial Officer at Westport. “While additional payments are expected as the transaction phases are completed, this interim payment strengthens our cash position today to support ongoing operations and our strategic initiatives. We

~ Global Production Expansion Strengthens Hydrogen and Alternative Fuel System Manufacturing Capacity ~ VANCOUVER, British Columbia, Jan. 19, 2026 (GLOBE NEWSWIRE) - Westport Fuel Systems Inc. (“Westport") (TSX:WPRT / Nasdaq: WPRT), a supplier of alternative fuel systems and components for the global transportation industry, announces the commencement of production at its expanded product development and manufacturing facility in Cambridge, Ontario and its new China Hydrogen Innovation Center and Manufacturing facility in Changzhou, China. Both facilities will support the development of Westport’s GFI-branded fuel system components by advancing Westport’s global hydrogen, CNG and RNG strategies and enabling local manufacturing capacity in China, a market widely cited as the largest in the world for hydrogen commercial vehicle deployment, with Chinese sales of hydrogen buses and trucks exceeding those of all other regions combined in 2024. Initial products were shipped to customers in

Tony Guglielmin assuming Chair role with retirement of current Chair Dan Hancock; Westport welcoming new Board member Brad Kotush VANCOUVER, British Columbia, Jan. 02, 2026 (GLOBE NEWSWIRE) - Westport Fuel Systems Inc. (“Westport") (TSX:WPRT / Nasdaq: WPRT), a supplier of alternative fuel systems and components for the global transportation industry, today announces changes to its Board of Directors. Chair Dan Hancock, appointed to the Board in July 2017, retired from the Board, effective December 31, 2025, with current director Tony Guglielmin assuming the role of Chair. Joining Westport’s Board of Directors, effective January 1, 2026, is Brad Kotush, who brings over 20 years of experience in early-stage transformation, investment banking, and capital markets, both in Canada and globally. This addition further enhances the Board’s expertise and supports the Company’s long-term strategic objectives. Mr. Hancock’s extensive automotive experience, particularly in technology