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Fuel Cell Electrode to be Developed

29 June 1999

Fuel Cell Electrode to be Developed

    VANCOUVER, British Columbia--June 28, 1999-- Rhombic Corporation (OTC-BB-NUKE) announces that the company has accepted a second proposal from the University of Missouri to participate in a joint research plan to develop doped diamond electrodes and undoped diamond film for the hydrogen fuel cell market.
    The doped diamond electrodes will be non-corrosive with the unique features of excellent thermal, chemical, and electrical conductive properties. Electrodes developed using boron doped diamond film will add efficiency to hydrogen fuel cells now being produced for automobiles, buses, and trucks.

    Rhombic's management is currently reviewing three other "Forced Diffusion" projects for the future developed at the University's facilities.

-- Production of N-type diamond semi-conductor material for the computer, satellite, and communications markets.
-- Quality coloring of diamonds for the retail and wholesale markets.
-- The doping of diamond films for use in small solid state monitor/detectors that would be portable and useful in monitoring at nuclear power plants and waste sites, and to measure the rate and flow of newtrons produced by the Inertial Electrostatic Confinement (IEC) fusion devices and other commercial neutron producers.

    Using its "Forced Diffusion" technology, Rhombic will begin July 1, 1999, at the University to purify polluting elements from silicon carbide and gallium nitride wafers. Reducing impurities in wafers will result in improved effectiveness with a longer wafer life span.
    Rhombic also announces that Dr. Reinhard Hopfl of Germany, represented Rhombic Corporation's nuclid battery at the Geneva, Switzerland June 12 and June 13, 1999 summit meeting of International Computer and Communications. Dr. Hopfl reported back to Rhombic his many contacts in the satellite business.
    For further details on Rhombic Corporation, call the company's public relations office (Mr. Skerry) at 1-888-821 6607 and 604 421 5543, or visit the Rhombic website www.rhombic.com.