Exhibit 99.1 SECOND AMENDMENT TO STOCK AND ASSET PURCHASE AGREEMENT SECOND AMENDMENT, dated as of February 5, 2005 (this "Amendment"), to the Stock and Asset Purchase Agreement, dated as of October 1, 2004 (as amended by the First Amendment to Stock...Stock and Asset Purchase Agreement • February 7th, 2005 • Cytec Industries Inc/De/ • Miscellaneous chemical products • New York
