The company will provide the technology and capital necessary to retrofit the existing 50 MGPY ethanol plant and, in exchange, will obtain an equity stake in Redfield.

The retrofit is anticipated to begin this year, with commercial production of isobutanol expected to start in the fourth quarter of 2012.

Redfield CEO Tom Hitchcock said that isobutanol provides an excellent opportunity to expand Redfield’s potential markets, improve its profit margins and create a more predictable and sustainable business.