Aprilbio Co. Ltd. is a research and development-oriented company. It engages in developing antibody therapeutics and sustained recombinant protein drugs, which are protein drugs among biopharmaceuticals, based on human antibody production technology and protein drug half-life extension technology. The company was founded by Sang-Hun Cha on January 30, 2013 and is headquartered in Chuncheon-si, South Korea.