NEWS RELEASE

Teijin Develops Portable Fuel Cell and Pressure Vessel Units
to Promote Wider Use of Clean Hydrogen Energy
Tokyo, Japan, March 8, 2023 --- Teijin Limited announced today that it has developed
a compact, lightweight and highly portable fuel cell unit and a companion pressure vessel
unit that supplies hydrogen fuel from three lightweight cylinders.
The new solution for integrated fuel cell operation and easy fuel supply is expected tohelp expand the range and scope of fuel cell use. The units will be used for the first timefrom June 2023 in a demonstration with Tokyu Construction Co., Ltd., which isparticipating in a major redevelopment of the Shibuya Station area in Tokyo where thedemonstration will take place. After verifying performance during the demonstration,
Teijin expects to begin selling commercial versions of the fuel cell and pressure vessel
in Japan from around the spring of 2024.

Concept model of fuel cell unit

Concept model of pressure vessel unit

The fuel cell unit is a portable generator that conveniently integrates the equipment
necessary for fuel cell operation. Its compact and lightweight design incorporates thenew IE-LIFTTM 1T fuel cell developed by British manufacturer Intelligent Energy Limited.
A large-capacity battery ensures about one hour of continued operation at the rated
output if the hydrogen supply is temporarily depleted or the fuel cell fails for any reason.
A built-in communication terminal enables the level of remaining hydrogen as well as theunit's operating status to be monitored remotely via a mobile device, reducing the burdenof monitoring critical information and the risk of encountering potential problems. The
unit even has an internal system to visualize the amount of CO2 emissions eliminatedcompared to a fossil-fuel generator. The fuel cell, which measures 450 (W) x 570 (D) x910 (H) mm and weighs about 60kg, is rated for 700-800W continuous power and1,500W maximum power.
The new pressure vessel unit is a portable hydrogen-fuel supply device equipped withthree Ultressa® lightweight, corrosion-resistant composite pressure-cylinders developed

by Teijin Engineering Limited, a subsidiary of Teijin. In addition to reducing the overall
weight when transporting hydrogen fuel under high pressure, the cylinders feature aninner liner made of seamless gas-tight aluminum alloy wrapped in high-strength fibers ina multilayer structure impregnated with epoxy resin. In the unlikely event of cylinder
failure due to overpressure, the liner will begin to leak gas rather than rupture (i.e., a"leak before break" structure). Also, a decompression device reliably lowers the pressure
with a simple valve operation to supply hydrogen safely even when a cylinder is atmaximum pressure. The unit, which measures 510 (W) x 765 (D) x 814 (H) mm andweighs about 80kg, is also rated for 700-800W continuous power and 1,500W maximum
power.
Teijin is contributing to CO2 emissions reduction by helping to expand the use ofhydrogen fuel cells in fields such as construction work. By developing hydrogen fuel cells
and promoting their expanded use, Teijin—a company aiming to support the society of
the future—hopes to help Japan reduce its CO2 emissions and achieve its targets under
the United Nations’ Sustainable Development Goals (SDGs).
Fuel cells powered by hydrogen, a next-generation energy source, are quieter thanfossil-fuel generators and do not emit unpleasant odors as well as harmful greenhousegases. Current fuel cells, which require a generator system combined with a battery anda controller, are relatively large and heavy, so transporting them can be difficult andrequire the use of heavy machinery. In addition, hydrogen storage cylinders must betransported and installed at a safe distance from the generator system. Moreover,residual hydrogen levels must be carefully monitored, which complicates the operationof current fuel cells.
About Intelligent EnergyIntelligent Energy is focused on the development and manufacture of its Proton
Exchange Membrane (PEM) fuel cell products for customers in the automotive,aerospace, generator, telecoms, materials handling and unmanned aerial vehicle (UAV)
sectors. The company is headquartered and manufactures in Loughborough in the UK,with additional offices and representation in the US, Japan, China and South Korea.
www.intelligent-energy.com
About the Teijin Group
Teijin (TSE: 3401) is a technology-driven global group offering advanced solutions in thefields of environmental value; safety, security and disaster mitigation; and demographic
change and increased health consciousness. Originally established as Japan's firstrayon manufacturer in 1918, Teijin has evolved into a unique enterprise encompassing
three core business domains: high-performance materials including aramid, carbon
fibers and composites, and also resin and plastic processing, films, polyester fibers andproducts converting; healthcare including pharmaceuticals and home healthcare

equipment for bone/joint, respiratory and cardiovascular/metabolic diseases, nursing
care and pre-symptomatic healthcare; and IT including B2B solutions for medical,
corporate and public systems as well as packaged software and B2C online services for
digital entertainment. Deeply committed to its stakeholders, as expressed in the brandstatement “Human Chemistry, Human Solutions,” Teijin aims to be a company thatsupports the society of the future. The group comprises some 170 companies andemploys some 20,000 people across 20 countries worldwide. Teijin posted consolidated
sales of JPY 926.1 billion (USD 7.2 billion) and total assets of JPY 1,207.6 billion (USD9.4 billion) in the fiscal year that ended on March 31, 2022.
Press Contact
Investor and Public Relations Department
Teijin Limited
pr@teijin.co.jp