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1. Mosaic

• See more Fortune 500 data for Mosaic

Fortune 500 rank: 422

2007 revenue: $5.77 billion

2007 total shareholder return: 341.7%

Riding the ethanol boom, corn farmers increased their acreage by 24% from 2006 to 2007. That meant a surge in sales for the Plymouth, Minn., company, which is the world's second-largest fertilizer producer. Prices of its two main products -- potash and di-ammonium phosphate -- have doubled and quadrupled, respectively, since early 2007.

NEXT: AK Steel Holding

Last updated April 24 2008: 10:54 AM ET

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