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 30, 2000 UNION CARBIDE CORPORATION (Exact name of registrant as specified in its charter) New York 1-1463 13-1421730 (State or other (Commission File Number) (IRS Employer jurisdiction of Identification No.) incorporation) 39 Old Ridgebury Rd, Danbury, CT 06817-0001 (Address of principal executive offices) (Zip code) Registrant's telephone number, including area code 203-794-2000 Total number of sequentially numbered pages in this filing, including exhibits thereto: 5 Item 5. OTHER EVENTS. See Union Carbide Corporation's press release dated March 30, 2000 accompanying this report as Exhibit 99. Item 7. FINANCIAL STATEMENTS AND EXHIBITS (C) Exhibits. 99. Press release, March 30, 2000. - 2 - 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. Date: March 31, 2000 UNION CARBIDE CORPORATION By: /s/J. Macdonald J. Macdonald Assistant Secretary - 3 - EXHIBIT INDEX Exhibits 99. Press release, dated March 30, 2000. - 4 -