EXHIBIT 99.01 EASTMAN CHEMICAL COMPANY AND SUBSIDIARIES OPERATING SEGMENT INFORMATION SALES REVENUE CHANGE, VOLUME EFFECT, PRICE EFFECT AND INTERDIVISIONAL EFFECT FIRST QUARTER 2002 ------------------ CHANGE IN REVENUE DUE TO ------------------------ INTER- REVENUE VOLUME PRICE DIVISIONAL % CHANGE EFFECT EFFECT EFFECT -------- ------ ------ ------ Eastman Division Segments: Coatings, Adhesives, Specialty Polymers, and Inks 15% 16% (3)% 4% Performance Chemicals and Intermediates 17% 2% (10)% 30% Specialty Plastics -% (9)% -% 11% --- -- --- -- Total 13% 6% (5)% 15% === == === == Voridian Division Segments: Polymers (20)% (4)% (15)% 3% Fibers 21% 27% (2)% 15% --- -- --- -- Total (10)% 4% (12)% 6% === == === == Total Eastman Chemical Company (8)% 5% (8)% === == === Factors affecting the change in sales revenue include sales volume, selling prices, interdivisional transactions, product mix, and foreign currency exchange rates. The impact of the most significant factors are presented above. 46