iTonic Holdings Ltd., a healthcare solutions provider, develops and commercializes treatment software and devices used for brachytherapy. The company's proprietary treatment planning system is a radioactive particle implantation, a radiotherapy used in treating cancer patients by placing radioactive sources inside the patient that kill cancer cells and shrink tumors. The company offers FTTPS, a treatment planning system for treating various malignant tumors, which could determine the target volume, prescription dose, and dose limitation to protect organs at risks and produce a safe, effective, and accurate dose distribution plan for brachytherapy for cancer patients. The company was formerly known as Pheton Holdings Ltd and changed its name to iTonic Holdings Ltd. in January 2026. iTonic Holdings Ltd. was founded in 1998 and is headquartered in Beijing, China. iTonic Holdings Ltd. operates as a subsidiary of ZJW (BVI) LTD.