Improved cash offer from Fisher

Improved cash offer from Fisher Fisher Scientific International Inc. (Fisher), has today announced an increase in its recommended cash offer announced on 26 June 2003 to the shareholders and holders of warrants from 1999 of Perbio Science AB (Perbio) to SEK155 per share and SEK106 per warrant under the 1999 program. The Offer is made through Fisher's wholly owned subsidiary FSII Sweden Holdings AB. The Board of Directors of Perbio welcomes the increase in Fisher's offer and continues to unanimously recommend the shareholders of Perbio and the holders of warrants under the 1999 program to accept Fisher's Final Offer. Deutsche Bank is financial adviser to Perbio. Helsingborg, 20 August 2003 The Board of Directors, Perbio Science AB (publ) FURTHER INFORMATION Mats Fischier, Chairman phone: +46 70 595 18 21 Leland G Foster, CEO phone: +1 435 757 6432 Perbio Science AB (publ) is a listed Swedish biotech company with research institutions, pharmaceutical companies and diagnostic companies as its customers. The USA accounts for the bulk of its business. Perbio Science supplies products, systems and services for the study and production of proteins and develops products in the Bioresearch, Cell Culture and Medical Device fields. The group has 1,353 employees and offices in Sweden, the USA and a number of other countries. Its head office is in Helsingborg, Sweden. More information regarding Perbio Science can be found at www.perbio.com ------------------------------------------------------------ This information was brought to you by Waymaker http://www.waymaker.net The following files are available for download: http://www.waymaker.net/bitonline/2003/08/20/20030820BIT00170/wkr0001.doc http://www.waymaker.net/bitonline/2003/08/20/20030820BIT00170/wkr0002.pdf