heat-sensitive medical instruments. However, it was known to be toxic.

During the course of the following decade Tristel gradually captured significant market share in the United Kingdom hospital market. In June 2005 Tristel plc was listed on the London Stock Exchange AIM market.

By this time the Company had developed a broader vision for the use of its chlorine dioxide chemistry and had set in train its strategy to apply the chemistry to the four vectors of transmission of infection in a hospital: instruments, surfaces, water and skin.

A key milestone in the development of the Tristel group was the establishment of its manufacturing plant in Cambridgeshire in 2007.