The group's principal activity is to manufacture, develop and distribute biological products. The group operates through three segments: hematology controls, biotechnology products and r&d systems Europe. Hematology controls are used to check the accuracy of blood analysis instruments. Biotechnology products inclusive of purified proteins (cytokines) and antibodies are used for the purpose of research and assay kits. R&d systems supplies cytokines and cytokine-related reagents to the biotechnology research community. The customers of the group are hospitals, clinical laboratories, research and clinical diagnostic markets. The foreign operations of the group are located in Germany.