Nikola Corp. stated on Thursday it had signed a cope with Germany’s Bosch Group to construct Bosch fuel-cell energy modules on the U.S. automobile maker’s facility in Coolidge, Arizona for 2 of its vehicles powered by hydrogen fuel-cells.

Bosch, which has a stake in Nikola, will provide totally assembled fuel-cell energy modules and different main elements to the Phoenix, Arizona-based firm.

A fuel-cell energy module is a system that generates electrical energy from hydrogen in autos and is actually utilized in industrial autos.

The truck maker will then assemble them at its manufacturing unit in Coolidge for its regional and long-haul industrial semi-trucks.

Nikola expects to launch the fuel-cell energy modules in 2023.

The announcement comes over a month after Nikola’s founder Trevor Milton was criminally charged with defrauding traders by mendacity to them concerning the firm’s merchandise and know-how.

Nikola in August halved its annual deliveries estimate and slashed its income forecast as provide chain points drove delays in receiving sure elements.