Compound food additives(Micronutrient Premix) are food additives made by physical mixing of two or more kinds of single food additives with or without auxiliary materials in order to improve food quality or to facilitate food processing. Premix Type: ● Vitamin Premix ● Mineral Premix ● Custom Premix (Amino acids https://www.richen-nutritional.com/micronutrient-premix/