Chemtura Corp. and subsidiary Uniroyal Chemical Corp.

Chemtura Corp., formerly Crompton Corp., was alleged to artificially boost prices of chemicals used to make rubber between 1995 and 2001. A lawsuit claims that the rubber-chemicals maker conspired in a global price-fixing scheme that kept prices paid by tire companies in the U.S. artificially high. The Nashville lawsuit says that three tire companies bought hundreds of millions of dollars of rubber chemicals from Chemtura and their fellow conspirators.