Haoyuan Chemexpress （SSE : 688131）is a public listed company providing full service of small molecule API/Intermediates development, scale up and cGMP contract manufacturing from grams to tons. The combined platforms include Solid Drug Polymorphism, High Potency API, Antibody Drug Conjugate (ADC), Complex Multi-Chiral Synthesis. Featured products : Calcipotriol, MonoMethyl auristatin E, Exatecan,Bazedoxifene，Palbociclib，Ramelteon. Staff: total 1403, R&D 643. Facility: R&D area 21,000 m2, GMP manufacturing site: 166,300 m2 .