The latest news and top stories on Koon Chun Sauce Factory. A leading entity in the food production sector, Hong Kong-based Koon Chun Sauce Factory, also known as Koon Chun Hing Kee Soy & Sauce Factory, specialises in naturally brewed soy sauce oyster sauce hoisin sauce and chili sauce. Established in 1928, they are one of Hong Kong’s "Five Treasures" of the sauce industry. Primarily serving the global Chinese diaspora and export markets including the Americas, they also cater to local retail food service and industrial sectors. The company holds halal certification and focuses on traditional methods quality and international reach.