JNTG’s Carbon Substrates (CS) products serve as the cathode-side PTL (Porous Transport Layer) in water electrolysis stacks — a critical component for splitting water into hydrogen used in fuel cell vehicles, stationary power systems, and other green hydrogen applications. As hydrogen fuel cell adoption accelerates, reliable hydrogen production will become increasingly vital.

To further enhance durability and performance, we offer an optional MPL (Microporous Layer) coating to protect membranes and extend stack life. Whether coated or uncoated, JNTG delivers customized CS solutions built for the demands of next-generation electrolyzers.