08:01 AM EDT, 10/14/2025 (MT Newswires) -- Westport Fuel Systems ( WPRT ) , announced Tuesday that its joint venture with the Volvo Group, Cespira, signed an agreement with and received full payment from a leading OEM for Cespira's HPDI components to be utilized in a customer truck trial.

U.S.-listed shares of the company were last seen up 12.2% at $2.4 in pre-market trading. The company said Cespira will deliver several hundred sets of a key component in support of the trial.

According to the company, the trial is designed to assess the market interest and viability of the direct injection system in certain heavy-duty trucking markets and is expected to form the "basis upon which the OEM will determine whether to make a further investment to commercialize this system."

Terms of the deal were not disclosed.