EXHIBIT 3.1P STATE OF DELAWARE SECRETARY OF STATE DIVISION OF CORPORATIONS FILED 09:00 AM 10/19/1999 991441986 - 2559401 CERTIFICATE OF AMENDMENT OF CERTIFICATE OF INCORPORATION OF WITCO EUROPE FINANCIAL SERVICES COMPANY It is hereby certified that: 1. The name of the corporation (hereinafter called the "corporation") is CK Witco Europe Financial Services Company. 2. The amendment of the certificate of incorporation herein certified has been duly adopted and written consent has been given in accordance with the provisions of Sections 228 and 242 of the General Corporation Law of the State of Delaware. Signed on 10/15/99 /s/ Arthur Fullerton -------------------------------------- Arthur C. Fullerton Vice President