Nomenclo
Monofilament of which any cross-sectional dimension exceeds 1 mm, rods, sticks and profile shapes, whether or not surface-worked but not otherwise worked, of plastics > Of other plastics
Section VII: Plastics and articles thereof; rubber and articles thereof · Chapter 39: Plastics and articles thereof · Heading 3916: Monofilament of which any cross-sectional dimension exceeds 1 mm, rods, sticks and profile shapes, whether or not surface-worked but not otherwise worked, of plastics
Under GRI 1, heading 3916 covers monofilament of plastics whose cross-section exceeds 1 mm, not otherwise worked. A 1.75 mm or 2.85 mm extruded PLA thread on a spool fits this. Heading 3907 is excluded because Chapter 39 Note 6 limits 'primary forms' to liquids, pastes, blocks, lumps, powders, granules and flakes, and a filament is none of these. Heading 5405 is excluded because its monofilament must not exceed 1 mm in any cross-section. PLA is not polyethylene or PVC, so the residual subheading 'Of other plastics' applies. The product is a consumable feedstock, not a machine or part, so Section XVI and heading 8485 do not apply.
Rules applied: GRI 1, Chapter 39 Note 6, GRI 6.
| Code | Description | Why not |
|---|---|---|
| 3907.70 | Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms > Poly(lactic acid) | Poly(lactic acid) subheading covers PLA only in primary forms (Chapter 39 Note 6); a spooled monofilament is not a primary form. |
| 5405.00 | Artificial monofilament of 67 decitex or more and of which no cross-sectional dimension exceeds 1 mm; strip and the like (for example, artificial straw), of artificial textile materials, of an apparent width not exceeding 5 mm | Monofilament heading 5405 requires no cross-sectional dimension above 1 mm; a 1.75 mm or 2.85 mm filament exceeds that limit. |
| 3916.10 | Monofilament of which any cross-sectional dimension exceeds 1 mm, rods, sticks and profile shapes, whether or not surface-worked but not otherwise worked, of plastics > Of polymers of ethylene | Subheading covers polymers of ethylene; PLA is a polyester, so this is not the applicable polymer subheading. |
Other > Other > Monofilament
Confidence 0.60. The product is a PLA extruded thread of 1.75 or 2.85 mm diameter, which is a monofilament with a cross-section above 1 mm, so the 'Monofilament' line fits better than the residual 'Other' line, though the listed lines don't name PLA specifically and the classification is only moderately certain.
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