Brief: Seiwa Electric Mfg. says upgrade of stock listing
March 9(Reuters) - Seiwa Electric Mfg. Co Ltd 6748.T
* Says it was listed on the Tokyo Stock Exchange (TSE) First
Section from TSE Second Section, effective March 9
Source text in Japanese:https://goo.gl/gSBujJ
Further company coverage: 6748.T
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