(CNN) - Former House Speaker Newt Gingrich continues the tour of key presidential primary states ahead of his likely campaign for the Oval Office, set to court ethanol proponents in Des Moines at the end of January.
Gingrich, who previously visited the key caucus state in September and November, will address the Iowa Renewable Fuel Association's annual summit, according to Gingrich spokesman Rick Tyler. The event will be open to the media.
Gingrich's appearance will come shortly after another potential 2012 candidate, Rep. Michele Bachmann, addresses a tax reform group in the Hawkeye State's capital city. Gingrich's visit will also precede that of former Minnesota Gov. Tim Pawlenty, who has three separate stops planned in Iowa at the end of the month.
The former House Speaker has previously said he will make a final decision about a presidential bid this spring.