Louston International, Inc.

Louston Group operates two manufacturing facilities in China, located in Tianjin and Shijahuang. We specialize in the R&D, manufacturing, and global commercialization of specialty pharmaceuticals, with a core focus on prostaglandins. We also produce key intermediates for antiviral, anti-HIV, HCV, and anticancer therapies. As a subsidiary of Louston Group, TIEN (Tianjin) Pharmaceutical Co., Ltd. is situated in Tianjin Wuqing Development Area. Our facility features three independent Class D cleanroom production lines, manufacturing prostaglandin APIs in full compliance with cGMP standards. Notably, we successfully passed U.S. FDA inspection with zero 483 observations, demonstrating our commitment to global quality excellence. With extensive regulatory submission experience across the U.S., Europe, Japan, Brazil, and South Korea, we provide global customers with full regulatory compliance and reliable end-to-end support.