Zeon Corp.,

Employees 3,166 (Consolidated) 1,713(Non-consolidated) (as of March 31, 2008)   Head office Shin Marunouchi Center Building, 1-6-2 Marunouchi, Chiyoda-ku, Tokyo 100-8246, Japan Tel: +81-3-3216-1772 Fax: +81-3-3216-0501   Operations Plants: Takaoka >>  TEL: +81-766-21-0252   Kawasaki >> TEL: +81-44-276-3700   Tokuyama >> TEL: +81-834-21-8501   Mizushima >> TEL: +81-86-475-0021 R & D: Kawasaki  TEL: +81-44-276-3721   Offices:  Osaka TEL: +81-6-6398-2930   Nagoya  TEL: +81-52-769-5861 Stock listings Tokyo, Osaka Stockholders  14,941 (as of March 31, 2008) Major Stockholders  Number of shares owned (thousands)   Yokohama Rubber Co., Ltd 16,832 7.14% Japan Trustee Services Bank, Ltd.. (Trust Account) 13,731 5.82% The Master Trust Bank of Japan, Ltd. (account in trust) 13,407 5.69% Asahi Mutual Life Insurance Company 10,679 4.53% Mizuho Corporate Bank 8,770 3.72% Furukawa Electric Co., Ltd.  8,594 3.64% ASAHI KASEI CHEMICALS CORP. 6,438 2.73% Japan Trustee Sevices Bank, Ltd. (Trust Account 4) 5,235 2.22% Mizuho Bank, Ltd. 4,989 2.12% Sompo Japan Insurance Inc. 4,689 1.99% Treasury stocks (6,014 thousand shares) are not included in