CHEMTURA INCREASES PRICES ON PHOSPHORUS BASED LUBRICANT ADDITIVES AND FIRE RESISTANT FLUIDS

MIDDLEBURY, CT, Sept. 26, 2005 — Chemtura Corporation (NYSE:CEM) today announced a worldwide price increase of $0.70/ kg for Durad® and Reolube® phosphorus based lubricant additives and fire resistant fluids, effective October 15, 2005, where contracts allow.

Chemtura is a leading global producer of phosphorus based products with an aggressive commitment to technological innovation and product development. Durad lubricant additives are added to natural, semi-synthetic, and synthetic lubricants in order to prolong the life of the fluid and to enhance the performance properties. They are used extensively in applications ranging from automotive to aircraft and industrial. Reolube fire resistant fluids are used in industrial hydraulic machinery applications that operate under severe temperature and pressure conditions. Steel making, metal diecasting, coal mining and power generation are typical applications for Reolube products.

For more information about these product lines, please visit Chemtura’s web site at www.paf.greatlakes.com.

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