| 3903 |  | Polymers of styrene, in primary forms: |  |  |  |  | 
| 3904 |  | Polymers of vinyl chloride or of other halogenated olefins, in primary forms: |  |  |  |  | 
| 3905 |  | Polymers of vinyl acetate or of other vinyl esters, in primary forms; other vinyl polymers in primary forms: |  |  |  |  | 
| 3906 |  | Acrylic polymers in primary forms: |  |  |  |  | 
| 3907 |  | Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms: |  |  |  |  | 
| 3908 |  | Polyamides in primary forms: |  |  |  |  | 
| 3909 |  | Amino-resins, phenolic resins and polyurethanes, in primary forms: |  |  |  |  | 
| 3910.00.00 | 00 | Silicones in primary forms | kg | 3% | Free (A,AU,BH, CA,CL,E,IL,J,JO, K,MA,MX, P,SG) | 25% | 
| 3911 |  | Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: |  |  |  |  | 
| 3912 |  | Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms: |  |  |  |  | 
| 3912.90.00 | 10 | alpha-Cellulose in granular, microcrystalline or powdered forms | kg |  |  |  | 
| 3913 |  | Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms: |  |  |  |  | 
| 3914.00 |  | Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms: |  |  |  |  | 
| 3926.90.40 | 00 | Imitation gemstones | X | 2.8% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 20% | 
| 3926.90.48 | 00 | Photo albums | No. | 3.4% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX,P,SG) | 80% | 
| 4001 |  | Natural rubber, balata, gutta-percha, guayule, chicle and similar natural gums, in primary forms or in plates, sheets or strip: |  |  |  |  | 
| 4001.21.00 |  | Natural rubber in other forms: |  |  |  |  | 
| 4001.30.00 |  | Balata, gutta-percha, guayule, chicle and similar natural gums |  | Free |  | Free | 
| 4002 |  | Synthetic rubber and factice derived from oils, in primary forms or in plates, sheets or strip; mixtures of any product of heading 4001 with any product of this heading, in primary forms or in plates, sheets or strip: |  |  |  |  | 
| 4003.00.00 | 00 | Reclaimed rubber in primary forms or in plates, sheets or strip | kg | Free |  | Free | 
| 4005 |  | Compounded rubber, unvulcanized, in primary forms or in plates, sheets or strip: |  |  |  |  | 
| 4006 |  | Other forms (for example, rods, tubes and profile shapes) and articles (for example, discs and rings), of unvulcanized rubber: |  |  |  |  | 
| 4017.00.00 | 00 | Hard rubber (for example, ebonite) in all forms, including waste and scrap; articles of hard rubber | X | 2.7% | Free (A,AU,BH,B, C, CA,CL,E, IL,J,JO,MA,MX, P,SG) | 80% | 
| 4205.00.05 | 00 | Belting leather cut or wholly or partly manufactured into forms or shapes suitable for conversion into belting | kg | 2.9% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 12.5% | 
| 4401 |  | Fuel wood, in logs, in billets, in twigs, in faggots or in similar forms; wood in chips or particles; sawdust and wood waste and scrap, whether or not agglomerated in logs, briquettes, pellets or similar forms: |  |  |  |  |