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ASAHI MEDICAL ANNOUNCES CONTINUED COLLABORATION WITH THERMOGENESIS FOR CRYOSEAL® IN JAPAN
Marketing and Distribution Relationship Continues in Full Force and Effect

TOKYO, Japan (June 27, 2003) – ASAHI MEDICAL CO., LTD. announced today that, contrary to earlier reports, its marketing and distribution relationship with ThermoGenesis (Nasdaq: KOOL) would continue into the foreseeable future. ThermoGenesis’s earlier announcement on June 20, 2003 that its marketing and distribution relationship with Asahi had ended was simply mistaken. The Distribution and Manufacturing License Agreement is still in force. Under the Agreement, Asahi Medical has the exclusive right to market the CryoSeal® System, including the CryoStat freezing and thawing thermodynamic device and Auto-Cryo Kit in Japan.

Asahi Medical is excited and enthusiastic about the System, and is currently conducting multi-center clinical trial in Japan in order to apply to Ministry of Health, Labour and welfare (MHLW) and to commercialize the System in the near future.

About ASAHI MEDICAL CO., LTD.
Asahi Medical is a world leader in research, development, and production of devices and systems for blood treatment and purification based on advanced membrane separation and adsorption technologies. It serves the global market with dialysis products, plasma therapy products, and blood transfusion products for medical therapy in many countries. Asahi Medical was founded in 1974 as a wholly owned subsidiary of Asahi Kasei Corporation. The Asahi Medical tradition of leadership in membrane and related blood treatment technologies spans several decades of dedicated and continuing research and development that draw and build on the fundamental strengths of its parent company in fibers, biotechnology, and other materials and process technologies.

For more information about this press release contact:
Shunji Sumida
Asahi Medical Co., Ltd.
9-1, Kanda Mitoshirocho
Chiyoda-ku, Tokyo
101-8482 Japan
Phone: 81-3-3259-5861 Fax: 81-3-3259-5899
Email: sumida.sb@om.asahi-kasei.co.jp

For more information about CryoSeal® in Japan contact:
Mitsuharu Ohno
Asahi Medical Co. Ltd.
9-1, Kanda Mitoshirocho
Chiyoda-ku, Tokyo
101-8482 Japan
Phone: 81-3-3259-5896 Fax: 81-3-3259-5899
Email: ohno.md@om.asahi-kassei.co.jp

Asahi KASEI GROUP