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Front-month CBOT March corn settled up 1 cent at $3.53-3/4 a bushel after reaching a session high of $3.54-1/4, the highest since Dec. 6.
Slow sales of corn by US farmers underpinned bids in US cash grain markets and also supported futures.
Trading volume was light. Volumes on Tuesday and last Friday were the smallest in about two years, CME Group data showed on Wednesday.