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J.P. Morgan Partners, LLC and CCMP Capital Advisors, LLC Announce Sale of PQ Corporation to The Carlyle Group

New York, June 1, 2007 CCMP Capital Advisors, LLC (CCMP Capital), on behalf of J.P. Morgan Partners, LLC (JPMP), has reached an agreement for The Carlyle Group (Carlyle) to acquire Niagara Holdings, Inc., parent company of PQ Corporation (PQ). PQ is a leading producer of specialty inorganic chemicals, catalysts, and engineered glass products. The transaction value is approximately $1.5billion.

Kirchheimbolanden plant audited according to ISO 14001 and ISO 9001:2000.

Kirchheimbolanden, Germany. 21-12-2007. ISO 9001:2000 certificate for Kirchheimbolanden plant has been reconfirmed.

Potters Industries Acquires Flex-O-Lite

Valley Forge, PA, January 25, 2007 Potters Industries, Inc., the international manufacturer of Highway safety and Engineered Glass material products, announced today that it has acquired certain assets of Flex-O-Lite Inc., a leading manufacturer of highway safety marking spheres, metal finishing glass beads and high refractive index glass beads, from Jackson Products, Inc. Terms of the transaction were not disclosed. Potters is a wholly-owned subsidiary of PQ Corporation, the chemicals and engineered glass materials company.

Intertraffic Amsterdam: April 1 - 4

Many visitors from all over the world came to see us, and there were some very interesting discussions. The stand was crowded every day from opening until closing of the show. Staff from all Potters Europe units and the US were available to talk to customers.

PQ Corporation to Separate Potters Industries

PQ Corporation (PQ), a global producer of specialty chemicals and catalysts, announced today that it will separate Potters Industries, Inc. (Potters), currently a wholly-owned subsidiary.

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