May 19 (Reuters) - Tokyo Energy & Systems Inc 1945.T :
* Says it appoints current president Yu Narasaki as chairman
* Says it appoints Tsutomu Kumagai as president to succeed
Yu Narasaki
* Says the changes planned effective on June 29
Source text in Japanese: https://goo.gl/Q8Bf2g
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Keywords: TOKYO ENERGY & SYSTEMS/BRIEF