The Puerarin Injection ecosystem comprises a tightly linked chain that begins with the extraction of puerarin from Radix Puerariae and the production of sterile pharmaceutical excipients, progresses through formulation, aseptic filling, and quality‑controlled packaging, and ends with distribution to hospitals, clinics, and specialty pharmacies. Upstream participants provide botanical raw material, high‑purity solvents, and single‑use manufacturing consumables. Midstream actors integrate these inputs using GMP‑compliant bioprocessing equipment, perform sterility validation, and manage regulatory filings. Downstream channels include national distributors, regional wholesalers, and direct hospital procurement units that deliver the finished injection to clinicians. Throughout the chain, value is captured by margins on raw material, processing services, and distribution logistics, while compliance with national drug‑approval authorities secures market access.