BRIEF-Canadian National Railway appoints Ghislain Houle as CFO
June 27 (Reuters) - Canadian National Railway Co
* CN appoints Mike Cory as chief operating officer and Ghislain Houle as chief financial officer
* Cory's and Houle's appointments will take effect July 1
* As part of management transition, Jim Vena will retire as CN executive vice-president and chief operating officer on July 1 Source text for Eikon: Further company coverage: (Bengaluru Newsroom: +1-646-223-8780)
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