FILE - In this Feb. 7, 2012 file picture the headquarters of Glencore in Baar, Switzerland is photographed. Commodities trader Glencore International said Wednesday, June 27, 2012 that it is ... more 
FILE - In this Feb. 7, 2012 file picture the headquarters of Glencore in Baar, Switzerland is photographed. Commodities trader Glencore International said Wednesday, June 27, 2012 that it is considering changes in incentives for senior employees of Xstrata, amid growing shareholder concerns over its proposed takeover of the mining company. The possible revision of the offer comes barely two weeks ahead of a shareholders vote on the deal. Glencore's announcement followed a demand by a Qatari investment fund for better terms for its 10 percent stake in Xstrata. It wants 3.25 new Glencore shares for each Xstrata share, significantly more than the 2.8 shares currently on offer. (AP Photo/Keystone/Sigi Tischler,File) less 
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Associated Press | Photo By Keystone/Sigi Tischler,File
Wed, Jun 27, 2012 11:20 AM EDT