Management shake-up heats up rising biodiesel star
 

*Source: Green Tech Blog (News.com) (http://www.news.com/greentech/8301-1...tag=nefd.top)*
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Another day, another CEO ouster at a green tech start-up.

Martin Tobias is out as chairman and CEO of Imperium Renewables, the company has announced. John Plaza, who founded the company with Tobias, is interim CEO while Nancy Floyd has taken over as chairman.

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