Aug 17 (Reuters) - Barrick Gold Corp ABX.TO :
* Announces refinements to management structure
* Says kelvin dushnisky, most recently co-president, has been appointed
president
* Says richard Williams, previously chief of staff, has been appointed chief
operating officer
* Jim Gowans to retire from Barrick on December 31, 2015
* Gowans, who has made contributions to the company as co-president, will be
senior advisor to the chairman until retirement
* Source text for Eikon ID:nMKWxq06Da
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