Xiamen Amoytop Biotech Co., Ltd. engages in research, development, production, and sale of recombinant protein drugs in China and internationally. It offers various drug products, including pegsomatropin injection, pegfilgrastim injection, molgramostim, filgrastim, and oprelvekin; active pharmaceutical ingredients (APIs); and reagents to treat viral hepatitis, malignant tumors, and immunotherapy. Xiamen Amoytop Biotech Co., Ltd. was founded in 1996 and is headquartered in Xiamen, China.