Wanglaoji herbal tea was invented during the Daoguang period of the Qing Dynasty. It has been 175 years. It is recognized as the ancestor of herbal tea and is known as the "King of Medicinal Tea".

Herbal tea is a kind of "medicinal tea" made from Chinese herbal medicine in Guangdong and Guangxi regions and has the functions of clearing away heat and removing dampness. Among the many time-honored herbal tea brands, Wanglaoji is the most famous. In modern times, Wanglaoji herbal tea has spread all over the world with the Chinese. In the early 1950s, the Wonglaoji pharmaceutical company was divided into two branches: one was classified as a state-owned enterprise and developed into today's Wonglaoji Pharmaceutical Co., Ltd. (formerly Yangcheng Pharmaceutical), which mainly produces Wonglaoji brand granules (approved by the Chinese national medicine brand); the other One branch was brought to Hong Kong by descendants of the Wang family. In mainland China, the Wong Lo Kat brand is owned by Wong Lao Kat Pharmaceutical Co., Ltd.; in countries and regions with herbal tea markets outside mainland China, the Wong Lao Kat brand is basically registered by the descendants of the Wang family. Jiaduobao is a Hong Kong-owned company located in Dongguan. The descendants of the Wang family in Hong Kong provide the formula. It is licensed by Wong Lo Kat Pharmaceuticals to exclusively produce and operate red canned Wong Lao Kat (Shijian brand) in the mainland. In 2003, the red canned Wong Lo Kat from Guangdong (hereinafter referred to as Red Wong Lao Kat) suddenly became a frequent guest in CCTV advertisements, and sales were booming. But in fact, after Guangdong Jiaduobao Beverage Co., Ltd. obtained the brand management rights of "Wanglaoji", the sales performance of its red Wonglaoji beverage has been tepid for six or seven consecutive years. It was not until 2003 that the sales of red Wong Lo Kat suddenly surged. Annual sales increased by nearly 400 yuan, soaring from more than 100 million yuan to 600 million yuan. In 2004, it exceeded 1 billion yuan in one fell swoop!