GREAT LAKES INCREASES PRICE FOR KP-140 SPECIALTY ADDITIVE

INDIANAPOLIS, INDIANA—Great Lakes Chemical Corporation (NYSE:GLK) today announced a worldwide price increase of 18 percent where contracts allow of its KP-140® specialty additive. The increase takes effect with all shipments from January 10, 2005, or as contracts allow. This price increase is necessary to keep pace with escalating global raw material and energy costs.

KP-140 specialty additive acts as a plasticizer and de-airing system diluent. It is used in floor polish applications as a leveling agent, in plastisols such as water-based adhesives, inks, and paints to reduce viscosity, and in textile applications as a biodegradable, non-silicone antifoam agent.

For more information about KP-140 specialty additives and other Great Lakes Polymer Additives product lines, please visit the web site at www.pa.greatlakes.com.

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