Pacific Shuanglin Bio-pharmacy Co., Ltd. is a China-based company that, along with its subsidiaries, researches, develops, produces, and sells blood products both in China and internationally. Its product portfolio includes human serum albumin, various human immunoglobulins, hepatitis B and tetanus immunoglobulins, rabies immunoglobulin, human coagulation factor VIII, human fibrinogen, lyophilized intravenous immunoglobulin (pH4), and human prothrombin complex concentrate, as well as intravenous cytomegalovirus immunoglobulin and intravenous respiratory syncytial virus immunoglobulin. The company is also involved in blood acquisition, plasma collection, consulting, trading, investment activities, and technology promotion and application services. Formerly known as Southern Shuanglin Bio-pharmacy Co., Ltd., it changed its name to Pacific Shuanglin Bio-pharmacy Co., Ltd. in April 2021. Founded in 1993, it is headquartered in Taiyuan, China.