BRIEF-Guodian Technology & Environment says Yang Guang resigned as chairman of board

May 4 (Reuters) - Guodian Technology & Environment Group

Corp Ltd:

* Yang Guang has resigned as Chairman of board

* Yang Guang has resigned as Executive director

* Chen Dongqing an executive director, has been elected as

new chairman by board

* Chen Dongqing an executive director, has resigned as

president of company

* Zhang Jun has been appointed as president of company

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