Exhibit 23 Independent Auditors' Consent To the Program Administrators of The Savings and Investment Program for Employees of Union Carbide Corporation and Participating Subsidiary Companies: We consent to incorporation by reference in the Registration Statement on Form S-8 (No. 33-58931) of Union Carbide Corporation of our report, dated June 14, 1999, relating to the statement of net assets available for benefits of The Savings and Investment Program for Employees of Union Carbide Corporation and Participating Subsidiary Companies as of December 31, 1998 and 1997 and the related statement of changes in net assets available for benefits for the year ended December 31, 1998, and all related schedules, included in this annual report on Form 11-K. /s/KPMG LLP June 23, 1999 Stamford, Connecticut - 20 -