Zimmer Interquisa Partner To Further PTA Technology

Frankfurt-based Zimmer AG and Spain-based Interquisa have entered into a technology cooperation
agreement for the licensing of Interquisa technology for the production of purified terephthalic
acid (PTA). The partnership will combine Zimmer’s engineering and design expertise with
Interquisa’s operating and market know-how. The companies also will work together to improve
Interquisa PTA technology.

May 2005