CHEMTURA INCREASES METALLIC STEARATES PRICES

Chemtura Corporation (NYSE:CEM) will increase non-formula-based prices for Metallic Stearates by $0.05 – $0.15 per pound, depending on grade, effective June 1, 2007 or as contracts permit.

CHEMTURA INTRODUCES FIREMASTER® 800 FLAME RETARDANT AT CHINAPLAS.

Chemtura(21st May 2007) Chemtura Corporation (NYSE:CEM) launches Firemaster® 800, a new flame retardant for flexible polyurethane foam that delivers 20% higher efficiency than the previous generation of Firemaster® 550 products.

CHEMTURA NAMED SUZANO’S SUPPLIER OF THE YEAR ‘06

Waldir Lima, Suzano Commercial and Logistic Director; Sergio Merighi, Chemtura Brazil; Paula Pizzonia, Chemtura Brazil; Soraya Jericó, Chemtura Brazil; Cristina Cardoso, Chemtura Brazil; Joerg Duebel, Chemtura USA; Nilson Fernandes, Chemtura Brazil; Chris Bond, Chemtura USA; Claire Cruz , Chemtura USA; João Nogueira, Suzano Co-President and Investors Relationship Director.Chemtura Corporation (NYSE:CEM) is honored as 2006 ‘Supplier of the Year’ by Suzano Petroquimica of Sao Paolo, Brazil, the Latin American leader in the production of polypropylene resins. Chemtura is one of the world’s largest producers of plastics additives.

CHEMTURA INCREASES AXION™ TIN CATALYST PRICES

Chemtura Corporation announces the following price increases for its Axion™ line of tin catalysts:

DBTO $2.40/kg (1.80 Euro/kg)
DOTO $2.30/kg (1.73 Euro/kg)
MBTO $2.50/kg (1.88 Euro/kg)

CHEMTURA NAMES ANNE P. NOONAN GROUP PRESIDENT, POLYMER ADDITIVES

Chemtura names Anne P. Noonan Group President, Polymer Additives.Chemtura Corporation (NYSE:CEM) has appointed Anne P. Noonan as Group President, Polymer Additives (Plastics Additives and Flame Retardants, Brominated Performance Products and Fumigants).

Chemtura to Present Extensive Range of Plastic Additives and Flame Retardants at Chinaplas

ChemturaMIDDLEBURY, CT—Chemtura Corporation (formerly Crompton and Great Lakes) will present their extensive line of PLASTICS ADDITIVES FOR THE POLYOLEFINS,PVC AND ENGINEERING PLASTICS INDUSTRIES , and flame retardant products at the 21st International Exhibition on Plastics & Rubber Industries. The Chinaplas Exhibition will take place May 21st through May 24th at Guangzhou International Convention and Exhibition Centre Pazhou, Guangzhou, PR China.

CHEMTURA PETROLEUM ADDITIVES LAUNCHES NEW WEB SITE

Chemtura Corporation (NYSE:CEM) has created a new Web Site for its global Petroleum Additives business: www.chemtura.com/petadds.Chemtura Corporation (NYSE:CEM) has created a new Web Site for its global Petroleum Additives business: www.chemtura.com/petadds.

“Now Chemtura customers can get an immediate sense of the full scope of our Petroleum Additives capabilities,” said Dr. Robert Wedinger, group president, Performance Specialties. “We offer one of the broadest lubricant-component and synthetic-base-stock portfolios in the industry.”

CHEMTURA NAMES ROBERT WEDINGER GROUP PRESIDENT, PERFORMANCE SPECIALTIES

Chemtura Corporation (NYSE:CEM) has named Robert S. Wedinger to the position of Group President, Performance Specialties (Petroleum Additives, Urethanes, Polyurethane Dispersions, Fluorine, and Optical Monomers). Dr. Wedinger also serves as Chief of Staff, Chemtura Corporation.Chemtura Corporation (NYSE:CEM) has named Robert S. Wedinger to the position of Group President, Performance Specialties (Petroleum Additives, Urethanes, Polyurethane Dispersions, Fluorine, and Optical Monomers). Dr. Wedinger also serves as Chief of Staff, Chemtura Corporation.

CHEMTURA TO PRESENT EXTENSIVE RANGE OF PLASTIC ADDITIVES AND FLAME RETARDANTS AT CHINAPLAS

Chemtura flame retardants are widely used in furniture and automobile foams and fabrics, computer monitor casings, circuit boards, wiring and other applications, including new FIREMASTER® 600 and 602 for approximately 10% greater efficiency.Chemtura Corporation (formerly Crompton and Great Lakes) will present their extensive line of plastics additives for the polyolefins,pvc and engineering plastics industries , and flame retardant products at the 21st International Exhibition on Plastics & Rubber Industries. The Chinaplas Exhibition will take place May 21st through May 24th at Guangzhou International Convention and Exhibition Centre Pazhou, Guangzhou, PR China.

Chemtura Announces European Price Increase on Tin Stabilizers

Chemtura Corporation (NYSE:CEM) announce a 15% increase on the selling price of their tin stabilizer range in Europe, Africa and the Middle East, effective 1st April 2007 or as contract terms permit. The increase, valid for all pack sizes, is driven by unexpected tight tin metal product supply and the dramatic increase in tin-metal costs over the last 12 months, and in particular over the last two months.

CHEMTURA INCREASES PRICES ON PHT4-DIOL FLAME RETARDANT

Chemtura Corporation (NYSE:CEM) announces an off-list price increase of 5% for its PHT4-diol flame retardant, effective April 1, 2007 or where contracts allow.

CHEMTURA INCREASES METAL ALKYL PRICES

Due to continued operational and capital cost demands, Chemtura Corporation will increase the prices of the neat portion of its aluminum alkyl products by 25%. Pricing for the neat portion of its Magnesium and Zinc alkyl products will be increased by 100%. These price increases will be effective April 1, 2007, or as contracts allow. For solvent blends, higher solvent purchase costs will be reflected in the blend pricing.