Three of the defendants have put up a total of more than $5 million to settle an antitrust class action on behalf of direct purchasers of alum. Alum is used to treat drinking water, control algae in lakes and ponds, treat wastewater, and for certain manufacturing purposes. The complaint alleged that the makers conspired to allocate territories, rig bids, and fix prices of alum, in violation of antitrust laws. The three settling defendants are USALCO, LLC, Southern Ionics Incorporated (SII), and American Securities, LLC. The case is still ongoing against General Chemical Corporation, General Chemical Performance Products, LLC, General Chemical LLC, GenTek Inc., Chemtrade Logistics Income Fund, Chemtrade Logistics Inc., Chemtrade Chemicals Corporation, Chemtrade Chemicals US, LLC, Chemtrade Solutions, LLC, C&S Chemicals, Inc., Kemira and Chemtrade, Kemira Chemicals, Inc., Frank A. Reichl, Brian C. Steppig, Vincent J. Opalewski, Alex Avraamides, Amita Gupta, Kenneth A. Ghazey.