Bumhan Fuel Cell

Bumhan Fuel Cell makes hydrogen fuel-cell systems, devices that generate electricity from hydrogen, for submarines and commercial buildings, and also builds hydrogen refuelling stations.

It supplies submarine fuel-cell modules exclusively to the South Korean Navy and provides building-use fuel-cell units through a dealer network, while its station-construction business rounds out the portfolio. Listed on KOSDAQ, Korea's tech and small-cap board, the company derives roughly half its revenue from fuel-cell supply and most of the remainder from hydrogen station construction.