UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): MARCH 9, 2004 WESTLAKE CHEMICAL CORPORATION (Exact name of registrant as specified in its charter) DELAWARE 333-108982 76-0346924 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) File Number) Identification No.) 2801 POST OAK BOULEVARD, SUITE 600 HOUSTON, TEXAS 77056 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (713) 960-9111 ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS. (c) Exhibits The following exhibit is being furnished pursuant to Item 12 of Form 8-K. 99.1 Press release issued by Westlake Chemical Corporation dated March 9, 2004. ITEM 12. RESULTS OF OPERATIONS AND FINANCIAL CONDITION. On March 9, 2004, Westlake Chemical Corporation issued a press release with respect to its 2003 fourth quarter and full year earnings. The press release is furnished as Exhibit 99.1 to this Current Report and incorporated by reference herein. The information furnished pursuant to this Item 12, including Exhibit 99.1, shall not be deemed to be "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and will not be incorporated by reference into any registration statement filed by Westlake Chemical Corporation under the Securities Act of 1933, as amended, unless specifically identified therein as being incorporated therein by reference. 2 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. WESTLAKE CHEMICAL CORPORATION By: /s/ Albert Chao --------------------------- Albert Chao President Date: March 9, 2004 3 EXHIBIT INDEX NO. DESCRIPTION - --- ----------- 99.1 Press release issued by Westlake Chemical Corporation dated March 9, 2004. 4