Weng Li Sdn Bhd is a wholly owned subsidiary of Eu Yan Sang International Ltd. It obtained the Malaysia Ministry of Health's GMP certification in September 1997 and was awarded the ISO 9001 international accreditation in March 2001.

Incorporated in 1980, Weng Li has since diversified into the manufacturing of traditional pills, capsules and powders, as well as the packaging of soups and teas. This state-of-the-art factory is equipped with sophisticated production lines designed to produce the best, most effective and most consistent herbal formulas.

By maintaining precise levels of pressure, time and temperature, this high-tech process delivers superior quality natural herbs and achieves consistent purity and efficacy of products.