CSL Limited is an Australia-based biotechnology company engaged in the developing and delivering medicines that treat people with rare diseases. It offers treatments for people who are living with conditions in the immunology and neurology; haematology and thrombosis; cardiovascular and metabolic; respiratory, and transplant therapeutic areas. Its segment includes CSL Behring and Seqirus. CSL Behring segment manufactures, markets, and develops plasma therapies (plasma products and recombinants), conducts early stage research on plasma and non-plasma therapies, excluding influenza, receives license and royalty income from the commercialization of intellectual property and undertakes the administrative and corporate function required to support the Company. Seqirus segment manufactures and distributes non-plasma biotherapeutic products and develops influenza related products.