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Showa Denko (SDK) Red LED Chips Adopted at METI's Plant Growth Facility.

Tokyo, June 10, 2009 - (JCN Newswire) - Showa Denko K.K.'s (SDK) aluminum-gallium-indium-phosphide (AlGaInP) LED chips that emit red light with wavelength of 660 nm have been adopted by the Ministry of Economy, Trade and Industry (METI) at its fully-controlled plant growth facility that supplies a model for such facilities to be built in Japan. The red light with wavelength of 660 nm is considered the optimum light for accelerating the growth of plants. SDK started selling samples of those LED chips in April this year. (Please refer to our news release of April 2, 2009.)

The plant growth facility was installed at the lobby of METI's annex building at Kasumigaseki, Tokyo, in January this year to raise awareness of the importance of such facilities among consumers, enterprises, local governments, and other parties involved. In the initial stage, the facility used a combination of artificial light and sunlight. However, it was fully renewed on May 26 and started focusing on artificial light, including LED, fluorescent, and sodium lamps. Its temperature and humidity are also fully controlled. The facility's LED lamps contain a total of around 800 red LED chips supplied by SDK.

In recent years, facilities for growing vegetables in an environment of controlled lighting, temperature, humidity, CO2 concentration and nourishments are attracting attention as they ensure stabilized production regardless of season or place, and realize multiple cropping. Furthermore, they do not need fungicides or insecticides because of the controlled environment.

Under the Passion Extension, SDK is expanding its ultrabright LED chip operation - consisting of AlGaInP red LED chips and indium-gallium-nitride (InGaN) blue/green LED chips - as a "next-generation growth-driver" business. SDK is preferentially allocating its resources to these areas to further increase its value.

About Showa Denko

Showa Denko K.K. ('SDK'; TSE: 4004, US: SHWDF) is a major manufacturer and marketer of chemical products serving a wide range of fields ranging from heavy industry to the electronic and computer industries. SDK makes petrochemicals (ethylene, propylene), aluminum products (ingots, rods), electronic equipment (hard disks for computers) and inorganic materials (ceramics, carbons). The company has overseas operations and a joint venture with Netherlands-based Montell and Nippon Petrochemicals to make and market polypropylenes. In March 2001, SDK merged with Showa Denko Aluminum Corporation to strengthen the high-value-added fabricated aluminum products operations, and is today developing next-generation optical communications-use wafers. For more information, please visit .

Source: Showa Denko

Showa Denko K.K.(SDK)
IR & PR Office
Phone: 81-3-5470-3235

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Publication:JCN Newswires
Date:Jun 10, 2009
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