ASTech Co., Ltd. is a fine chemical manufacturing company based in South Korea. It offers organic UV filters, including Uvimax Type, Uvimax DHHB, Uvimax EHT, Uvimax TDSA, and Uvimax BEMT, as well as active pharmaceutical ingredients and other products. The company was founded in 2005 and is headquartered in Seocheon-eup, South Korea.