(10)Labelling or marking of the fibre composition should be compulsory to ensure that correct and uniform information is made available to all consumers in the Union. However, this Regulation should not prevent economic operators from indicating, in addition, the presence of small quantities of fibres requiring particular attention to keep the original quality of the textile product. Where it is technically difficult to specify the fibre composition of a textile product at the time of its manufacture, it should be possible to state, on the label or marking, only those fibres which are known at the time of manufacture provided that they account for a certain percentage of the finished product.