Cellulose and its chemical derivatives, n.e.c. or included, in primary forms

391211 Cellulose acetates; non-plasticised, in primary forms 391212 Cellulose acetates; plasticised, in primary forms 391220 Cellulose nitrates (including collodions); in primary forms 391231 Cellulose ethers; carboxymethylcellulose and its salts, in primary forms 391239 Cellulose ethers; (other than carboxymethylcellulose and its salts), in primary forms 391290 Cellulose and its chemical derivatives; n.e.c. in item no. 3912, in primary forms