VIOHALCO, HELLENIC COPPER AND ALUMINIUM INDUSTRY, S.A., a company listed in the Athens Exchange, (the Issuer) would like to announce to the investors that, after a relevant application of the company National Securities, S.A., the Board of Directors of the Athens Exchange, following its resolution dated 29/11/2005, approved as market maker for the Issuer?s shares the company National Securities, S.A. The starting date of the above market making was set to be the 1/12/2005. A Market making Agreement has been signed between the Issuer and National Securities, S.A., under the following basic Terms: 1. The National Securities, S.A. will transfer to the ATHEX Trading System (OASIS) market making orders (quotes) on its account, concerning the issuer?s shares, in accordance with the specific provisions of the pertinent legislation in force. For this service the Issuer will pay a fee to the National Securities, S.A. 2. The duration of the Market Making Agreement is one (1) year.