Alibaba Health Information Technology Limited, an investment holding company, engages in the pharmaceutical e-commerce, intelligent medicine, and product tracking platform businesses in the People's Republic of China. The company engages in the B2C pharmacy business that provides outsourced and value-added services, and other related services to the Tmall entities, and centralized procurement and distribution businesses. It also operates Drug PIATS, a product identification, authentication, and tracking system for the drug industry; and a medical services network, as well as offers online health consultation services. The company was formerly known as CITIC 21CN Company Limited and changed its name to Alibaba Health Information Technology Limited in September 2014. It has strategic collaboration agreement with Merck KGaA to develop patient-centric digital services. The company is based in Causeway Bay, Hong Kong. Alibaba Health Information Technology Limited is a subsidiary of Perfect Advance Holding Limited.