CITI (Customerized Immune cells Target Information) Bank target is "specific human immune cell populations—natural killer cells and T lymphocytes," which are the commanders of innate and acquired immune responses, respectively. International journals have pointed out that while the immune system was previously thought to primarily control cancer, later research indicates a more direct relationship between human immunity and aging. Maintaining or rebuilding adequate immunity can effectively prevent aging and cancer (Immunity & Ageing 2008). Therefore, collecting and storing autologous immune cells in youth can become a valuable biological resource for personalized immune reconstruction or cancer immunotherapy in the future (Human Immunology 2007). We have developed our own information management system, which, under the regulations of the Personal Data Protection, integrates complete customer health information, process production history, and storage location management into a unified information system, providing the CITI Bank product service. The entire operation process is executed under rigorous quality system monitoring. We do more than just preserve precious cells for our clients, we provide comprehensive anti-aging care services, customized treatment plans to improve sub-health conditions, maintain and strengthen the body's immune regulation, and tailor the best asset allocation for health management, acting as managers of our clients' health assets.

All standard operating procedures are in accordance with ISO 9001 certification standards, and the procedures for collection, transportation, separation, storage and management are all carried out under the strict quality system monitoring.

• All immune cell storage and acceptance procedures ensure that infectious disease testing, sterility testing, and mycoplasma testing meet acceptance standards before storage.

• Annual quality and storage environment testing is conducted after thawing of stored cells to ensure proper operation of the storage environment.

• Blood collection and separation are performed in qualified facilities and units.

• All related medical equipment and consumables are GMP-certified.

• Conduct regular internal audits and ISO-9001 audits annually to ensure the smooth operation of internal systems.

• Conduct regular annual visits to partner units and divested facilities to confirm that all processes are functioning correctly.