The Iowa Soybean Association (ISA) and Renewable Energy Group, Inc. have partnered to sponsor the Soy Biodiesel 225 on Sept. 22 at the Iowa Speedway in Newton.

“We see our sponsorship of the Soy Biodiesel 225 as a great way to build awareness of the biodiesel industry,” says John Heisdorffer, ISA district 9 director. “We're very proud to be sponsoring this race at the Iowa Speedway.”

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