Kuraray Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President: Yasuaki Wakui; below, "Kuraray") and Mitsui Chemicals, Inc. (Headquarters: Minato-ku, Tokyo; President: Kenji Fujiyoshi; below, "Mitsui Chemicals") agreed on July 15 to terminate their relationship with regard to Kyodo Monomer Co., Ltd. (below, "Kyodo Monomer"). Kyodo Monomer was established through a fifty-fifty joint venture of Kuraray and Mitsui Chemicals, to manufacture methyl methacrylate (MMA) monomer, a raw material for the production of methacrylic resin(*1). Kuraray will transfer to Mitsui Chemicals its entire stock holding in Kyodo Monomer, which will become a wholly owned subsidiary of Mitsui Chemicals.

Highly transparent, light in weight, and strong, methacrylic resin is widely used in LCD light guides and other optical products, as well as in auto parts and a number of other applications.


In 1988, Mitsui Toatsu Chemicals, Inc.(*2) and Kyodo Gas Chemical Co., Ltd.(*3) and established Kyodo Monomer as an equally funded joint venture. Kyodo Monomer commenced operations in 1991, and produced MMA monomer for the next 14 years.

*2 Mitsui Toatsu Chemicals, Inc.
In 1997 Mitsui Toatsu Chemicals, Inc. merged with Mitsui Petrochemical Industries, Ltd. to become Mitsui Chemicals, Inc.
*3 Kyodo Gas Chemical Co., Ltd.
Kyodo Gas Chemical Co., Ltd. merged with Kuraray Co., Ltd. in 1989.

Date of stock transfer to Mitsui Chemicals

September 30, 2005

Additional Information : Kyodo Monomer Co., Ltd. (Data as of July 15, 2005)

1. Business activities manufacturing and sale of methyl methacrylate monomer
2. Headquarters Minato-ku, Tokyo
3. Capitalization ¥400 million
4. Ownership Kuraray, 50%; Mitsui Chemicals, 50%
5. President Toshikazu Tanaka (also vice-president of Mitsui Chemicals)
6. Number of employees 20 (all seconded from Mitsui Chemicals)
7. Manufacturing facilities (1) Location of plant: Takaishi city, Osaka (on the site of Mitsui Chemicals' Osaka Works)
(2) Production capacity: 40,000 tons per year