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The biobased chemical maker Amyris says its CEO, John Melo, has resigned, effective immediately, and that layoffs are starting as part of a previously announced plan to cut costs by $250 million. Amyris was formed in 2006 with fermentation technology from the University of California, Berkeley, lab of chemical engineer Jay D. Keasling. The California-based firm says its ingredients are in over 20,000 consumer products, but it continues to lose money. Melo had led Amyris for 16 years.
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