A federal judge in Chicago gave preliminary approval on January 30 to a cash settlement in multidistrict antitrust litigation against producers of potash, a natural chemical used in fertilizers. The deal brought the total recovery to $110 million.

Bruce Simon, a partner at Pearson, Simon, Warshaw & Penny in San Francisco, spoke to The National Law Journal about the settlements, which followed a closely watched ruling for the plaintiffs last summer by an en banc panel of the U.S. Court of Appeals for the Seventh Circuit.