LUDWIGSHAFEN, Germany - In an effort to take over Engelhard Corp., BASF Aktiengesellschaft, through its wholly owned subsidiary, Iron Acquisition Corp., extended the expiration date of its cash tender offer for all of the issued and outstanding shares of common stock of Engelhard until April 14. This gave BASF the opportunity to review non-public information provided by Engelhard pursuant to the terms of their confidentiality agreement.