For more than 130 years, Darling International has operated in a little-known corner of U.S. industry, breaking down the leftovers of the meat industry for products including cattle feed and cosmetics.
Then last month the Irving, Texas-based rendering giant announced it was entering the biofuels market. Partnered with Valero Energy Corp., Darling was beginning production at a $425 million plant in Louisiana converting animal fat into fuel.
Biofuels “make up between 25 and 30 percent of sales in ...
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