BRIEF-China Zhengtong Auto Services Holdings says Koh Tee Choong, Ivan appointed as an executive director

March 21 (Reuters) - China Zhengtong Auto Services Holdings Ltd * Koh Tee Choong, Ivan has been appointed as an executive director of company * Li Yi, an executive director, will serve as general manager of shanghai dongzheng automotive finance co., ltd * Li Yi has tendered his resignation as executive director of company Source text for Eikon: Further company coverage: (bangalore.newsroom@thomsonreuters.com)