The nation's largest pork producer and fresh pork processor plans to invest $20 million to construct a facility that converts swine waste into biodiesel vehicle fuel.

Smithfield Foods, Inc. will be a major partner in BEST BioFuel, LLC, to build a plant at Smithfield's Circle Four Farms near Milford, UT, to produce biomethanol.

The biomethanol will be shipped to a plant outside Utah for conversion into biodiesel-utilizing oils including soybean oil, animal fat or used cooking oil. The result is a clean-burning, renewable fuel that can extend the life of diesel engines due to improved lubricating action, say Smithfield officials.