What is the biggest pharmaceutical company in Korea?

Written by Editorial Team | Last Updated: August 2026

South Korea's biopharmaceutical and healthcare sector is anchored by several massive enterprises, with Celltrion Inc. standing out prominently as a global leader in biopharmaceutical manufacturing, contract development and manufacturing, and monoclonal antibody production. Boasting a massive market capitalization and state-of-the-art production facilities, Celltrion develops and distributes advanced biosimilars and therapeutics internationally. Other major industry powerhouses—such as Samsung Biologics, Yuhan Corporation, and SK Bioscience—also drive massive pharmaceutical research, development, and production outputs across the country.

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