Koon Chun Sauce Factory is one of the oldest and most respected food companies in Hong Kong. They make a wide variety of traditional sauces and condiments using no artificial preservatives, colors, or flavor enhancers. Bean sauce, also known as yellow bean paste or salted yellow soybean sauce, is a condiment made from fermented soybeans and sesame oil. It is a delicious topping and flavoring for steamed fish and stewed meat dishes. It also adds a subtle and flavorful taste stir-fried snow peas, sweet peas, and green beans.