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QUANTUM Demonstrates High Pressure Composite Hydrogen Tank

IRVINE, Calif., June 27 - QUANTUM Technologies WorldWide, Inc., a wholly owned subsidiary of IMPCO Technologies, Inc. (Nasdaq:IMCO) , announced today that it is the first to demonstrate an all-composite hydrogen storage tank that stores hydrogen at 10,000 psi (700 Bar). At 10,000 psi, 80% more hydrogen fuel can be stored in a given space than at 5,000 psi -- dramatically increasing the range of fuel cell mobile applications.

According to Syed Hussain, President and CEO of QUANTUM, "This breakthrough in advanced hydrogen storage technology will have a positive impact on compressed hydrogen fuel cell mobile applications. A vital issue in bringing fuel cell vehicles to the marketplace is extending the vehicle range."

Dr. Neel Sirosh, QUANTUM's Director of Advanced Fuel Storage said, "The extended range requires volumetric efficiency in the storage of compressed hydrogen at a high pressure without compromising the light-weight nature of the tank. This is a principal advantage of our TriShield(TM) tank and the significance of QUANTUM's 10,000 psi proof of concept demonstration."

The 10,000 psi hydrogen storage capability of QUANTUM's unique all-composite TriShield(TM) tank was confirmed through a hydrostatic burst test that achieved 23,500 psi burst pressure -- a 2.35 factor of safety required by the European Integrated Hydrogen Project (EIHP) specifications. EIHP is at the forefront of developing global regulatory standards for hydrogen storage testing and certification. This achievement establishes the design direction of the QUANTUM TriShield(TM) tank. To supplement the inherent safety features designed into the new 10,000 psi storage tank, QUANTUM's patented 10,000 psi in-tank regulator provides additional safety by containing the high pressure in the tank and allowing a maximum delivery pressure of only 150 psi (10 Bar).

In breaking new ground for compressed hydrogen containment, QUANTUM is designing and developing new technologies to achieve weight and volume advantages, while addressing the challenges of the effects of compressed hydrogen on high strength design materials. QUANTUM is optimizing the material composition of the tanks -- utilizing a proprietary metal alloy end boss that is hydrogen corrosion resistant and a proprietary polymer tank liner that is not affected by the potential of hydrogen embrittlement and stress corrosion cracking.

QUANTUM is a Tier-One supplier to automotive OEMs. QUANTUM's state-of-the-art compressed hydrogen storage cylinders, fuel metering systems, electronic computer control modules, and fuel system integration capabilities have been successfully demonstrated in the transportation market -- from passenger cars and trucks, to buses and sub-cars. QUANTUM engages in continuous improvement activities targeted at maximizing safety and achieving cost reduction.

For more information, please contact:

Alan Niedzwiecki, Executive Director, Business Development,
QUANTUM Technologies Inc. Tel: (949) 399-4500

Eileen M. Oswald, Director of Communications,
QUANTUM Technologies WorldWide, Inc. Tel: (949) 885-7547

QUANTUM Website: www.qtww.com

QUANTUM Technologies Inc. is a wholly owned subsidiary of IMPCO Technologies Inc. (Nasdaq: IMCO). QUANTUM is focused on the development of fuel system enabling technologies for manufacturers of alternative propulsion and energy in emerging global markets.

Certain matters discussed in this press release contain forward-looking information that involves risks and uncertainties that could cause actual results to differ materially from current trends. These include the company's ability to design and market advanced fuel metering, fuel storage or electronic control products, the company's ability to meet OEM specifications, and other such risks as cited in the 2000 annual report on Form 10-K for IMPCO Technologies, Inc., and other documents filed with the Securities and Exchange Commission.

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