Chongkundang 

Chong Kun Dang pharmaceutical Corp. engages in the manufacturing, marketing, and selling of medicines in South Korea and internationally. It provides prescription drugs for anti-hypertension, anti-hyperlipidemia, and anti-diabetics; over-the-counter drugs, such as Penzal, Prefemine, and Modcol, as well as consumer health products, such as insecticides, hair dye, etc.; and healthcare supplements with preventive benefits. The company also exports its products. Chong Kun Dang pharmaceutical Corp. was founded in 1941 and is headquartered in Seoul, South Korea.