Your supplier has a legal obligation to provide you with the exact ingredient composition of any foods you buy from them, this is considered mandatory within the Regulation on provision of food information. This exact compositional information will be listed on the food’s  prepackaging or on a label attached to the packaging, or on the commercial documents referring to the foods where it can be guaranteed that such documents either accompany the food to which they refer or were sent before or at the same time as delivery.