9902.10.70 - Poly(propylene-co-1-butene-co-ethylene) (CAS No. 25895-47-0) (provided for in subheading 3902.30.00)

This HTS classification, 9902.10.70, specifically covers Poly(propylene-co-1-butene-co-ethylene) with CAS Number 25895-47-0. It is important to note that this is a temporary classification, established under Chapter 99 of the Harmonized Tariff Schedule, which pertains to temporary legislation and modifications proclaimed pursuant to trade agreements and Section 22 of the Agricultural Adjustment Act. While its primary designation is within Chapter 39 (Plastics and articles thereof), this temporary provision carves out a specific classification for this particular copolymer.

Unlike the broad categories found in the early chapters of the HTS (e.g., Chapter 01 for live animals), this classification is highly specific. It applies exclusively to this particular three-monomer copolymer, distinguishing it from other polypropylenes, copolymers, or other plastics that may fall under different HTS headings and subheadings, including its parent classification of 3902.30.00. The presence of both 1-butene and ethylene as co-monomers with propylene is the defining characteristic for goods classified here.

As a leaf node within the HTS database, there are no further subcategories branching from 9902.10.70. Therefore, the classification criteria for this entry are solely based on the identification of the material as Poly(propylene-co-1-butene-co-ethylene) (CAS No. 25895-47-0) and its temporary designation under Chapter 99. Importers and exporters must ensure accurate material identification and verify the current status of this temporary provision to ensure correct customs declaration.