Sumitomo Electric Industries (住友電気工業 Sumitomo Denki Kōgyō) is a major manufacturer of electric wire and optical fiber cables. It holds the lead in market share for electric cables within Japan. Its headquarters are in Chūō-ku, Osaka, Japan. The company's shares are listed in the first section of the Tokyo, Osaka, and Nagoya Stock Exchanges, and the Fukuoka Stock Exchange. In the period ending March 2006, the company reported consolidated sales of 2,007,134,000,000 Japanese yen.
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