Sheffield Bio-Science, a subsidiary of KERRY Group in the United States, has been serving the world for more than 70 years. As a large-scale and professional supplier of cellular nutrition raw materials in the global biopharmaceutical vaccine industry, it has become a media raw material supplier for 7 of the 10 "biological bombs" with annual sales of a single drug exceeding 1 billion US dollars in the world. It is one of the few producers in the world to produce both yeast powder and peptone and to develop non-animal-derived compound additive systems for different cell lines/strains, the development of global pharmaceutical, vaccine, serum-free medium, traditional fermentation and diagnostic medium industries.