Bumhan Fuel Cell is a company that has been physically split from Bumhan Industrial, a small giant specializing in compressors, for the past 31 years to revitalize the hydrogen fuel cell and hydrogen charging station business fields. Starting with fuel cells for submarines, Bumhan Fuel Cell has expanded its business to include fuel cells for buildings, fuel cells for ships, and hydrogen charging stations, and is emerging as a total solution company in the field of hydrogen fuel cells. Fuel cells for submarines were developed and commercialized for the second time in the world in 2018, and in 2019, along with the launch of fuel cell products for buildings. As a shareholder of the Hydrogen Energy Network (Hinet), it is also actively conducting the hydrogen charging station business.

Bumhan Fuel Cell's main business can be divided into 1) Submarine fuel cell 2) Building fuel cell 3) Hydrogen charging station.
In 2015, through the acquisition of GS Caltex’s military fuel cell business, in 2018, it was equipped with the world’s second submarine fuel cell module, Based on technology, Bumhan entered the building fuel cell business in 2018 and the hydrogen charging station business in 2019.