22 Jun 2006

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

MIDDLEBURY, CT, June 16, 2006 — 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 July 7, 2006, 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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Chemtura Corporation
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+1 203 573 2220

www.chemtura.com

Notes for editors

Chemtura Corporation

Chemtura Corporation, (formerly Crompton and Great Lakes Corporations) with pro forma 2005 sales of $3.9 billion, is a global manufacturer and marketer of specialty chemicals, crop protection and pool, spa and home care products. Please visit www.chemtura.com.

Forward-Looking Statement

Certain statements made in this release are forward-looking statements that involve risks and uncertainties, including, but not limited to, general economic conditions; the outcome and timing of antitrust investigations and related civil lawsuits to which Chemtura is subject; the ability to obtain increases in selling-prices; pension and other post-retirement benefit plan assumptions; energy and raw material prices and availability; production capacity; changes in interest rates and foreign currency exchange rates; changes in technology, market demand and customer requirements; the enactment of more stringent environmental laws and regulations; the ability to realize expected cost savings under Chemtura’s cost-reduction initiatives; the amount of any additional earn-out payments from General Electric Company from the sale of the OrganoSilicones business; the ability to reduce Chemtura’s debt levels; the ability to successfully integrate the Crompton and Great Lakes businesses and operations and achieve anticipated benefits from the merger, including costs savings and synergies; and other risks and uncertainties detailed in filings with the Securities and Exchange Commission by Chemtura or its predecessor companies. These statements are based on Chemtura’s estimates and assumptions and on currently available information. The forward-looking statements include information concerning our possible or assumed future results of operations, and Chemtura’s actual results may differ significantly from the results discussed. Forward-looking information is intended to reflect opinions as of the date this release was issued and such information will not necessarily be updated by Chemtura.