9902.09.18 - Partially polymerized (dimerized) rosin, catalyzed with sulfuric acid, softening point not less than 92˚ C, acid number not less than 140 (CAS No. 65997-05-9) (provided for in subheading 3806.90.00)
Details
| Field | Value |
|---|---|
| Unit of Quantity | N/A |
| General Rate of Duty (Column 1 - General) | Free |
| Special Rate of Duty (Column 1 - Special) | No change |
| Column 2 Rate of Duty | No change |
| Quota Quantity | N/A |
| Additional Duties | N/A |
Overview
This HTS category, 9902.09.18, specifically classifies a specialized form of partially polymerized (dimerized) rosin. The material is distinguished by its catalytic treatment with sulfuric acid, resulting in a softening point of not less than 92° C and an acid number of not less than 140. This precise chemical and physical profile is critical for its identification within this temporary provision.
While the broader HTS system classifies many types of rosin and its derivatives under Chapter 38, this specific subheading falls within Section XXII. This indicates that the goods covered here are subject to temporary legislation, modifications proclaimed pursuant to trade agreements, or additional import restrictions. Therefore, its primary distinction from other rosin-related HTS classifications lies in its unique regulatory status and the specific conditions under which it is admitted or restricted for import.
As this is a leaf node within Chapter 99, there are no further subdivisions. The classification is highly specific to the material described, as defined by its polymerization state, catalyst, softening point, and acid number. Any material that does not meet all these precise criteria would likely be classified elsewhere, potentially under the permanent provisions for rosin and its derivatives if they do not fall under these temporary measures.