RootK Co., Ltd. manufactures and sells machine tools and biotechnology products in South Korea and internationally. It offers tapping centers, spindle machines, machining and turning centers, and machining centers with long table. Additionally, It also offers bispecific antibody therapeutics for ophthalmic and oncology indications, including anti-VEGF/ANG2, anti-HER2/CD3, anti-GPC3/CD3, and anti-CLAUDIN18.2/CD3 antibody candidates targeting DME/Wet AMD, breast cancer, gastric cancer, and liver cancer.The company was formerly known as Abpro Bio Co., Ltd. and changed its name to RootK Co., Ltd. in June 2026. The company was founded in 1991 and is headquartered in Daegu, South Korea.